ML18040B195

Forwards Util Final Response to IE Bulletin 85-003, Motor- Operated Valve Common Mode Failure Due to Improper Switch Settings.

ML18040B195
Person / Time
Site:	Susquehanna
Issue date:	01/12/1988
From:	Keiser H PENNSYLVANIA POWER & LIGHT CO.
To:	Russell W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-85-003, IEB-85-3, PLA-2966, NUDOCS 8801150177
Download: ML18040B195 (219)

Text

REGULA Y INFORMATION DISTR IBUTI SYSTEM (RIDS)

ACCESSION NBR: 8801150177 DOC. DATE: 88/01/12 NOTARIZED: YES DOCKET 0 FAG IL: 50-387 Susquehanna Steam Electric Stat i onf Unit if Pennsg lva 05000387 50-388 Susquehanna Steam Electric Stationf Unit 2f Pennsg lva 05000388 AUTH. NAME AUTHOR AFFILIATION KE I SER I H. W. Pennsylvania Poluer 8c Light Co.

REC IP. NAME RECIPIENT AFFILIATION RUSSELL W. T. Region I Ofc of the Director

SUBJECT:

E~fw-Forwards util final response to IE Bulletin 85-03f "Motor Operated Valve Common Mode Failure Due to Improper Smitch Settings. "

DISTRIBUTION CODE: IEIID COPIES RECEIVED: LTR TITLE: Bulletin Response (50 DKT)

J ENCL g SIZE:

NOTES: fey NMSS/FCAF/PM. LPDR 2cgs Transcripts. 05000387 1 c g NMSS/FCAF/PM. LPDR 2c g s Tran scr i p ts. 05000388 REC IP IENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD1-2 LA 1 0 PD1-2 PD 1 1 THADANIfM 1 INTERNAL: AEOD/DOA 1 1 AEOD/DSP 1 1 AEOD/DSP/TPAB 1 1 NRR/DEST/ADE 1 1 NRR/DEST/A'DS '1 1 NRR/DEBT/MEB " 1 1 NRR/DOE*/EAB 1 NRR/DOEA/QCB 1 1 NRR/DREP/EPB ~ 1 1 NRR/PMAS/ ILRB 1 1 02 1 1 RES/DE/EIB '1 RG ~F-I'LE 01 1 1 EXTERNAL: LPDR 2 2 NRC PDR 1 1 NSIC 1 1 TOTAL NUMBER OF COPIES REQUIRED: LTTR 23 ENCL 22

1Pennsylvania ~

Power 8 Light Company Two North Ninth Street ~ Allentown, PA 18101 ~ 215/7705151 Harold W. Keiser Vice President-Nuclear Operations 21 5/770-7502

.JAN 1 2 1988 Mr. William T. Russell Regional Administrator, Region 1 U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 SUSQUEHANNA STEAM ELECTRIC STATION RESPONSE TO BULLETIN 85-03 Docket Nos. 50-387 PLA-2966 FILES R41-1A/R41-2 and 50-388

Dear Mr. Russell:

L Attached is PP&L's final response to Bulletin 85-03. If you have any questions, please contact Mr. Ray Harris at (215) 770-7918.

Very truly yours, H. W. Keiser Vice President-Nuclear Operations Affidavit Attachments cc: NRC Document Control Desk (original)

Mr. M. C. Thadani, NRC Project Manager Mr. J. Stair, NRC Resident Inspector 880ii50i77 880ii2 05000387 PDR ADOCN, G

AFFIDAVIT COMMONWEALTH OF PENNSVr.VANIA)

SS COUNTY OF LEHIGH )

I, HAROLD W. KEISER, being duly sworn according to law, state that am I Vice President, Nuclear Operations of Pennsylvania Power & Light Company and that the facts set forth on the attached response to IE Bulletin 85-03 are true and correct to the best of my knowledge, information and belief.

Harol W. Keiser Vice President, Nuclear Operations Sworn to and sub ibed befoxe me this 9 day of January, 1988.

Notary Public MARTilAC. BART'. 'NOTARY PU9i.lC QY CCHP~l.'S/ON iX'riP; S."sl. 15. 1.39 Manb~s, l'er.nsyln.isa ~lssacbtioo of!iota;in rmhmea102a

FINAL RESPONSE TO IE BULLETIN 85-03:

8801150177 "MOTOR OPERATED VALVE COMMON MODE FAILURE DUE TO IMPROPER S%fITCH SETTINGS I. SPECIFIC ACTIONS RE UIRED BY THE BULLETIN:

The following specific actions were required for motor operated valves in the high pressure coolant in)ection/core spray and emergency feedwater systems (RCIC for BWRs) that are required to be tested for operational readiness in accordance with 10CFR50.55a(g):

a) Review and document the design basis for the operation of each valve including the maximum differential pressure expected during both opening and closing for normal and abnormal events to the extent the valve operations and events are included in the existing design basis. Single equipment failures and inadvertent equipment operations that are within the plant design basis should be assumed. (See Section II.B. for discussion and Attachment 3 for results.)

b) Using the results of the design basis review, establish the correct switch settings. This shall include a program to review and revise, as necessary, the methods used for selecting and setting all switches. (See Sections II.C and D for discussion and

'Attachment 6 "for.results.)

c) Individual valve settings shallge changed, as necessary, and the valve shall be demonstrated operable by testing the valve at the maximum differential pressure determined previously, with the exception that testing valves under conditions simulating a line break is not required. Otherwise, )ustification shall be provided for any cases where testing with the maximum differentia1 pressure cannot be performed. This )ustification should include the alternative to maximum pressure testing used to verify correct switch settings. Each valve shall be stroke tested to verify the proper switch settings even if differenti'al pressure testing is not performed. (See Sections II. E and F for discussion and Attachments 5 and 6 for results.)

d) Prepare or revise procedures to ensure that correct switch settings are determined and maintained throughout the life of the plant. (See Section II. H and I for discussion and Attachment 7 for results.)

e) Within 180 days of- the bulletin issue date, submit a written report to the NRC that: (1) reports the results of item a and (2) contains a program and schedule for completion of these items.

(See PLA-2632 dated 5/9/86 and PLA-2736, dated 10/9/86, for PP&L's initial response.)

Upon completion of the program, provide a written report to the NRC which shall include the following:

(1) verification of completion of the requested program.

(Program completed 11/13/87)

(2)

(3) summary of the findings with respect to valve operability prior to any adjustments resulting from the bulletin. (See Section II.G and Attachment 6) summary of data generated. during implementation of the 0

bulletin program. (See Attachments 5 and 6)

II. SUSQUEHANNA PROGRAM TO ADDRESS BULLETIN REQUIREMENTS:

The following is a detailed summary of the Susquehanna Unit 1 and 2 program and results to completely address the requirements of IE Bulletin 85-03. Some of the information has previously been included in PP&L's initial submittal to the NRC and is included herein for clarity and completeness.

A. Selection of Affected S stems and Valves The bulletin required scope was "motor operated valves in the high pressure coolant injection/core spray and emergency feedwater systems (RCIC for BWR) that are required to be tested for operational readiness in accordance with 10CFR50.55a(g)." It was subsequently clarified by the NRC that low pressure core spray systems need not be included; therefore, for Susquehanna the scope of systems is limited to High Pressure Coolant Injection (HPCI) and Reactor Core Isolation Cooling (RCIC).

The Susquehanna scope of valves was'extracted from the Susquehanna Steam Electric Station Pump and Valve Inservice Inspection Test Program which identifies all motor operated valves subject to operability requirements of 10CFR50.55a(g). For the HPCI system this included all motor operated valves which may be required to actuate in support of a HPCI initiation plus all containment isolation valves. Since RCIC is not an ECCS system, the only RCIC valves subject to 10CFR50.55a(g) requirements are the containment isolation valves. The final list numbered twenty-two valves for each unit (13-HPCI; 9 RCIC). This list was cross-checked with the applicable system drawings (P&ID's) to verify that no valves were inadvertently omitted. System layouts and valve identifications are shown on Attachments 1 and 2.

B. Determination of Valve 0 eratin Desi n Basis The design basis for each valve consists of (1) the maximum differengial pressure expected during opening and/or closing of the valve for both normal and abnormal events, and (2) the temperature corresponding to these conditions.

Normal events include those operations performed during normal plant conditions (i.e., startup,. shutdown, power operation, etc.).

Also included are the system's designed safety functions and test modes.

t-

Abnormal events are those system conditions resulting from postulated single equipment failures and recovery from inadvertent valve openings or closures to the extent that these valve operations and events are included in the existing, approved design basis. The purpose of the two main steam isolation valves in each system is to mitigate a possible steam line break so that case is considered an abnormal event.

The results of the design basis review are summarized -on Attachments 3 and 4 as well as on the individual valve summary sheets included in Attachment 6.

C. Calculation of Thrust Re uired to Actuate Valves Using the results of the valve operating design basis review, the thrust required to actuate each valve in both the opening and closing directions was calculated. This was completed using industry accepted formulas for thrust determination (see Attachment 4 for actual formulas used). The calculated thrust is made up of three basic components:

1) Disc-to-Seat Friction. In a gate valve differential pressure forces the disc against one seat ring. Friction between the disc and seat ring must be overcome in order to open or fully close the valve. Piping thermal loads were also considered since they can create loads on the disc to seat interface.

For this calculation it was assumed that half of the axial thermal piping load was transmitted to the disc, the other half being absorbed by compression of the valve body. The loads due to differential pressure and to piping loa'ds are then summed and multiplied by a friction factor of 0.3 which is generally accepted in the industry for flex-wedge gate valves.

For globe valves the thrust is dependent on the total differential pressure across the disc. Disc to seat friction is not a concern and piping loads are not applicable. A factor of l,l is used to account for the differential pressure force acting on the disc plus a 10K margin for conservatism.

2) Stem End Thrust. The pressure inside the valve body exerts a force on the stem tending to push it out of the valve. This force reduces the thrust required to open the valve and increases the thrust required to close the valve. In globe valves, stem end thrust only occurs when the high pressure side is above the valve seat during opening, otherwise it is included in the total seat differential. For the purposes of this calculation globe valve stem end thrust is conservatively assumed to be zero.

3) Packing Box Friction. Friction load between the moving stem and the valve packing is also considered. The load is conservatively estimated as 1000 lb. for stem diameters 1" and smaller, 1500 lb.

for stem diameters up to 1-1/2" and 2500 lb. for stem diameters over 1-1/2".

During the effort to evaluate this bulletin, PP&L has been, made aware of new formulas being developed by individuals to correlate valve design basis parameters to required actuation thrust. PP&L has reviewed the work done in this area and has concluded that the testing performed to verify these new equati is marginal at best and therefore does not justify the use of these new equations. Almost all- of the testing has been performed in the opening direction which provides no useful data to verify the equations. Furthermore, none of the failures identified in the bulletin can be directly related to the failure of industry accepted equations to accurately'redict required actuation thrusts. The failures instead are related to inaccurate design basis information being used as input or the output information not being properly incorporated as actual switch settings by the utility. For the reasons stated above, no further justification is required for use of industry accepted (valve) equations.

Switch Settin Methodolo I) Torque Switches In order to convert thrust required to a particular torque switch setting, the thrust is first multiplied by a stem thread factor to determine the required torque. The thread factor is dependent upon stem diameter, lead, pitch and the coefficient of friction between the stem and stem nut.

Again', industry accepted formulas are used for this conversion. The calculated thrust and torque values are to the nucle'ar ratings for each subject actuator to 'ompared verify that the actuator 'is not undersized. Design and maximum torque. switch settings and corresponding actuator output torque values are obtained from the actuator manufacturer. Information on the required spring pac for the design torque range is also obtained since torque switch settings are meaningless if the correct spring pac is not installed in the actuator. The required torque switch setting is determined by comparing the required torque to the torque at the normal and maximum torque switch settings. If the required torque was less than the torque output at the normal setting, the required torque switch setting would simply be the normal setting. In the case where the required torque falls between the normal and maximum torque values the required torque switch setting is determined by linear interpolation between the normal and maximum setting. In this instance, additional conservatism is added to the actual torque switch setting to account for any non-linearity in the spring pac through its operating range.

2) Limit Switches There are three basic types of operating circuits employed on the subject valves at Susquehanna with the actual limit switch function and setpoint being determined by the type of circuit used on each particular valve. The type of circuit used is determined by the safety related function of the valve as described below:

a) Valve which opens to perform its safety function:

The opening circuit for this type of valve consists only of a limit switch which is set to open at 97X full open.

The fact that the torque switch is not in the circuit eliminates the concern of accurately setting a torque switch bypass to overcome the initial peak thrusts due to hammer-blow and disc pullout. Although this type of circuit does reduce the degree of equipment protection provided by the torque switch, it assures that the valve vill actuate to perform its design safety function.

The closing circuit for this'type of valve consists of a limit switch and torque switch in parallel. The limit switch is closed for the first 3X of travel to act as a torque switch bypass during peak thrusts due to hammer-blow and initial disc movement. For the final 97Z of travel the torque switch controls the valve cycle and eventually trips the actuator on high torque at the fully closed position.

b) Valve which closes to perform its safety function:

The opening circuit for this'type of valve consists of a limit switch in series with a torque switch. The torque switch is also in parallel with another limit switch wbich remains closed the first 37. of travel to act as a torque switch bypass during peak thrusts due to hammer blow and initial disc movement. During the remaining 97X of travel the stroke is governed by both the torque and limit switches with the torque switch providing equipment protection and,the limit switch opening at 97X open to stop valve travel.

The closing circuit is similar to that described in a) above except that the limit switch bypasses the torque switch for the first 97X of travel. This provides additional assurance that the valve will close thereby fulfilling its design safety function.

c) Valve which both opens and closes to perform its safety function:

The opening circuit is identical to that described in a) above.

The closing circuit is identical to that described in b) above.

3) Motor Thermal Overloads Motor thermal overloads are normally bypassed on safety-related valves at Susquehanna in accordance with Reg. Guide 1.106. The bypass is accomplished by wiring the bypass switch, located in the control room, in parallel with the motor overload contact. When testing the valve, the bypass

switch contact is opened; should an overload condition occur in test, the overload contact opens interrupting control power and the valve stops. During normal operation (non-test mode), with the bypass switch contacts closed, an overload does not interrupt control power.

Switch Settin Im lementation Summarized below are the methods used for resetting the subject switches. Valve specific information (including as-found and as-left switch s'ettings) is included on the valve summary sheets in Attachment 6.

Torque Switches Required torque switch settings were calculated as described above. Spring pac data as well as design torque switch settings, and corresponding output torques were obtained from the actuator manufacturer. If the required torque switch setting was determined to be less than the design normal setting stated by the manufacturer, the torque switch was set at the previously determined normal setting to eliminate the need for new torque switch calibration charts. If the required torque switch setting was determined to be between the design normal and maximum settings, the setting was determined by linear interpolation as described above.

2) Limit Switches (Opening Direction):

The limit switch which interrupts power to the actuator at the valve full open position'as reset, as necessary, to stop valve travel at 97X full open. This was visually'verified by noting additional stem travel in the opening direction after electrically opening the valve, thereby accounting for any momentum of the valve disc and its continued motion after limit switch trip.

The limit switch which acts as a torque switch bypass was reset, as necessary, to bypass the torque switch for the first 3X of stem travel. This setting was determined by physical verification of stem travel or by counting handwheel

,turns. If handwheel turns were counted, the count did not begin until lost motion within the actuator and play between the disc/stem interface were taken up. Again it must be noted that on a valve which must open to perform its safety function, a torque switch bypass is not employed; the torque switch is not in the circuit at all.

3) Limit Switches (Closing Direction):

On valves which employ a limit switch to initially bypass the torque switch, the limit switch was reset, first if necessary, to travel bypass the torque switch for the 3X of to account for peak thrusts due to actuator hammer-blow. This setting was determined by physical verification of stem travel or by counting handwheel turns from the valve open

position. Again if handwheel turns are counted, the count did not begin until lost motion within the actuator had been taken up and stem travel had begun. On a valve which must close to perform its safety function, a 3X torque switch bypass is not used but rather a 97K torque switch bypass is employed. In the later case, the limit switch was set to remain closed until the valve is 3X open. This setting was again determined by measuring stem travel and was verified by noting additional stem travel between the disengagement of the limit switch and torque switch trip thereby assuring the valve disc was not over-torqued into the, seat.

4) Motor Thermal Overloads:

No changes were required since overloads are bypassed during all operations except testing.

F. Test Re uirements and Results Included below is an overview of the program for valve testing, to verify that the correct switch settings have been implemented.

Individual valve test requirements (including Justifications) and results are included on the valve summary sheets in Attachment 6.

All valves subject to this bulletin were stroke tested under static conditions to verify that the settings defined above had been properly implemented. In addition to this, some of the valves were stroke tested at differential pressure during

,quarterly system full flow tests. Since the test differential pressures did not approximate maximum design basis conditions, additional justification was required to conclude design basis operability. This )ustification is included on the individual valve data sheets (Attachment 6). A special test procedure was.

developed to stroke test one valve at operating differential pressure where it was practical. As indicated on Attachments 3 and 4 some of the valves have maximum operating differential pressure which are relatively small. The majority of the thrust to actuate these valves is required to overcome stuffing box loads and very little is required to actually overcome the differential pressure across the valve. Therefore for these valves the static stroke test is all that was specified. Type testing was also used to satisfy maximum differential pressure test requirements among similar valves. Many valves could not practicably be tested against maximum differential pressures because of one or more of the following:

1) Testing would have required simulation of a line break.

2) Testing would have required operation of the reactor vessel at or near a main steam safety relief valve set point.

3) Testing would have required an in)ection into the reactor vessel.

4) Testing would have required deadheading a pump.

For those valves, a static stroke test was performed while the valve was monitored by MOVATS test equipment. The signature obtained provided data on limit switch development as well as thrust at torque switch trip. This thrust was compared to the calculated required thrust to determine the acceptability of the torque switch setting. Single point MOVATS testing is felt to be sufficient since it is believed the intent of the required testing is, as stated in IEB 85-03, "to verify the correct settings" and not to verify the industry equations for determining thrust.

Also, since the torque switch is not in the opening circuit for valves which must open and is only in the circuit the final 3r". for valves which must close, failure of a valve to perform its safety related function due to an improper torque switch setting is highly unlikely.

G. Anomalies This section will discuss anomalies experienced throughout the entire IEB 85-03 program and their affect on valve operability.

For organizational purposes the deviations will be broken down into design related and field related (Sections 1 and 2). Valve operability is discussed in Section 3 while additional topics are discussed in Section 4.

1) Design Anomalies Out of the forty-four valves which had their design basis reviewed, twenty'exhibited some sort of discrepancy as.

summarized below:

Number of Anomal Valves Affected Actual design differential pressure used by valve vendor in actuator sizing calculation was less than that specified in original valve purchase order.

Stem factor used by actuator manufacturer to convert thrust to torque was'ncorrect.

Required thrust used by actuator manufacturer to size actuator was less than the required thrust calculated by the valve vendor.

IE Bulletin 85-03 valve design review resulted in a higher design basis differential pressure than that previously specified in the valve purchase order.

Each of the above described items resulted in original design normal torque switch settings being lower than the normal torque switch settings determined as part of this program.

In nine instances, the as-found torque switch settings were

set below the program determined minimum setting due to the anomalies noted above. In each case this resulted in indeterminant as-found design basis operability.

2) Field Anomalies:

Out of the forty-four valves within the scope of IEB 85-03, eleven exhibited some sort of as-found discrepancy as summarized below:

Number of Anomal Valves Affected As-found limit switch settings were

. non-conservative As-found spring pac was unacceptable As-found torque switch setting below nameplate minimum As-found torque switch settings above nameplate maximum As-found limit switch settings were too conservative (also had unacceptable spring pac)

In two instances, the above described discrepancies resulted in indeterminant as-found design 'basis operability. In both cases, the cause was an unacceptable as-found spring pac.

3) Operability Discussion:

The eleven valves, whose as-found operability was indeterminant, are discussed below; HV-149F008: Unacceptable spring pac combined with overly conservative limit switch settings The as-found spring pac was unacceptable and as a result the torque switch would have tripped the actuator prematurely in the closing direction. A torque switch bypass was employed in the closing circuit but was set to bypass the torque switch for only the first 77X of travel. Therefore under maximum design basis conditions it is unlikely the valve would have closed completely.

HV-149F013/HV-249F013: Actuator supplied thrust less than that calculated by valve vendor The as-found close torque switch setting was not adequate to allow the valve to close completely under maximum design basis conditions. The valve would have begun to close due to the torque switch bypass but it is uncertain if the valve would have continued to close to 100X closed.

HV-249F008: Differential pressure used in actuator sizing, calculation was less than specified in valve The purchase order.

as-found close torque switch setting was not adequate to allow the valve to close completely under maximum design basis conditions. The valve would have closed at least 97%

0 due to the torque switch bypass but it is uncertain if the valve would have continued to close to 100X closed.

HV-155F003: Differential pressure used in actuator sizing calculation was less than specified in valve purchase order.

The as-found close torque switch setting was not adequate to allow the valve to close completely under maximum design basis conditions. The valve would have closed at least 97X due to the torque switch bypass but it is uncertain if the valve would have continued to close to 100X closed.

HV-155F004: Actuator supplied thrust was less than that calculated by valve vendor The as-found close torque switch setting was not adequate to allow the valve to close completely under maximum design basis conditions. The valve would have closed at least 97X due 'to the torque switch bypass but it is uncertain .if the valve would have continued to close to 100X closed.

HV-'155F008: As-found spring pac unacceptable The as-Sound spring pac was unacceptable and as a result the torque switch would have tripped the actuator prematurely in the closing direction. The valve would have closed at least 97% due to the torque switch bypass but it is uncertain if the valve would have continued to close to 100X closed.

HV-155F079/HV-255F079: Actuator manufacturer used wrong stem factor The as-found open and close torque switch settings were not.

adequate to allow the valve to cycle under maximum design basis conditions. The valve would have opened partially due to the opening direction torque switch bypass but it is uncertain if the valve would have continued to open to 100%

open. The Unit 1 valve would have closed at least 94% due to the torque switch bypass while the Unit 2 valve would have closed at least 97X due to the torque switch bypass."

However, it is uncertain if either valve would have continued to close to 100X closed.

HV-255F012: Design review differential pressure was higher than previously specified in valve purchase order 10-

The as-found close torque switch setting was not adequate to allow the valve to close against design basis differential pressures. The valve would have closed at least 97X due to the torque switch bypass. However, it is uncertain if the valve would continue to close under design basis conditions.

4) Additional Discussion:

a) Spring Pacs One condition discovered during this program was an apparent redesign of 60-600-0023-1 and 60-600-0024-1 spring pacs by the vendor without a subsequent change of part number. The two different designs exhibit different torque output versus torque switch setting relationships. It appears as though some valve actuators were supplied with one design spring pac while the actuator nameplate was based on the other design spring pac. There were fourteen valves whose design spring pacs were one of these two types however in no case was the as-found operability affected by this problem.

b) As-left Anomalies:

HU-149F013/HV-249F013: As-left thrust exceeds actuator nuclear rating The actual as-left thrust exceeds the actuator nuclear rating by approximately 10X. This presents no immediate concerns but could lead to excessive maintenance requirements and possible long range fatigue concerns.

A decision whether to replace the actuators with the next larger size is under evaluation.

HV-255F007: As-left limit switches were set overly conservative The as-left full open limit switch was set at 88X open and the closing direction torque switch bypass was set at 87X open. This was concluded to not affect valve operability.-

HV-255F008: As-left torque switch settings exceeded nameplate maximum The as-left torque switch settings were 3-1/4 while the design maximum, as indicated by the actuator manufacturer, was 3. At a setting of 3-1/4 the actuator maximum thrust/torque rating and valve maximum thrust/torque capability were not exceeded.

H. Control of Settin s

1) Torque Switch Settings Prior to the development of the program to respond to IE Bulletin 85-03, torque switch settings were controlled only by the torque switch limiter plate and the calibration chart in the operator enclosure. As a result of this bulletin, the torque switch settings of the forty-four affected valves are now administratively controlled by the plant procedure for operator set-up and maintenance. An attachment has been added to the procedure which lists the valves along with the required design thrust, spring pac information, and normal and maximum torque switch settings. The body of the procedure has been rewritten to enforce the switch settings included in the attachment.

2) Limit Switch Settings Limit switch logic at Susquehanna is controlled by electrical schematic diagrams. These schematics specify which switches are to be included in the control circuit and the location of these switches in the circuit. The actual setting of the limit switches is governed by plant maintenance procedures for motor operator rework. Enhancements to these procedures (detailed in Section I of this. document) have been made to prov'ide additi'onal'guidance.in this area.

I. Procedures Previously, there had been two actuator maintenance procedures in place at Susquehanna (MT-GM-021 and MT-GE-'003). One of these was electrical in nature while the other was mechanical. In order to eliminate duplication of information between the two procedures as well as to simplify actuator maintenance, the two procedures have now been superseded by one procedure (MT-GM-050) which covers all actuator maintenance. The new procedure addresses the determination and maintenance of torque and limit switch settings including torque switch bypasses and full open limit switches.

This procedure also provides for control of switch settings for valves sub)ect to the requirements of IEB 85-03. Excerpts from this procedure are included as Attachment 7-to this document.

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ATTACHMENT 3 UALUE DESI IS SOILY PAGE i of RFACTOR CORE ISOLATION COOLINC (RCIC)

UNIT I LLH I TOFU E OPERATING BASES P(PSI) T( F)

VAI.VE SIZE VALVE PRI SSURE OPERATOR SERVICE NORHAL TAC NO. (INCH) TYPE HANUFACTURER CIASS SIZE D ESCR I PTI ON POSITION OPEN CLOSE HV-149F007 4 Cate Anchor/Darling 900 SHS-00-)li Inboard Steam Open 0/565 LL57/565 Isolation HV-149FOUB 4 Cate Anchor/Darling 900 SHS-00-10 Outboard Steam Open 115)/$ 565 1157/565 Isolation HV-149F013 6 Cate Anchor/Dar I Iug 900 SHS-00-25 .RCIC In)ection Closed 1162/4546 1162/140 fV-149f019 2 Clobe Yaruay 1500 SHS-00-15 ~

Hln Floe Bypass Closed 1300/140 L 300/100 HV-149F031 6 Cate Anchor/Darling 150 SHB-000-g Pump Suction Closed 44/140 29/L40 Suppression Pool HV-149f059 10 Cate Anchor/Darling 150 SHS-00-10 Turbine Exhaust Open 0/100 0/298 Isolation HV-1491'060 2 C lobe Ysruay 1500 SHS-000"2 'acuum Pump Open 20/160 20/160 Discharge HV-149F062 2 Cate Borg Marner 1500 SHS"000-5 Outboard Vacuum Open ll/240 44/140 Breaker HV-149FOB4 2 Cate Borg 'Marner 1500 SHS-000'-5 Inboard Vacuum Open 29/140 44/140 Breaker I

Actual temperature depends on proximity to Iceduater pipe.

" c~,'~.l iz/z ~r 81

Page 2 of 4 NIGII PRFSSURE COOLANT INJECTION (HPCI)

UNIT I LIH I TORQUE OPERATING BASES HAX P(PSI) T( F VALVE SIZE VAI.VF. PRESSURE OPERATOR SERVICE NORHAL TAG NO. ( INCH) TYPE HANUFACTURER CIASS S I ZE DESCRIPTION POSITIOH OPEN CLOSE HV-155FOO I 10 Cate Anchor/Darl ing 900 SHB-1-60 Turbine Steam 'losed 1157/565 1157/565 Isolation HV-155F002 10 Gate Anchor/Der I I ng &00 SHB-1-40 Steam Supply Open 0/565 1157/565 Inboard isolation

~ Ia HV-155F003 10 Gate Anchor/Darl Ing &00 SHB-1-40 Steam.'upply Open I I 57/(5&5 1157/565 Outboard isolation HV-155F004 16 Gate Anchor/Darl Ing 150 SHB-00-7$ CST 'Suction Open 40/100 40/100 HV-155FI)06 14 Gate Anchor/Darl I ng 900 SHB-3-150 Injection Shutoff Closed 1162/C,546 1162/140 NV-155F007 14 Gate Anchor/Dar1 ing 900 SHB-3-150 Pump Discharge Open

>>62/(546'342/100 HV-155FOOB 10 Globe Anchor/Der I ing 900 SHB-3-80 Full Flow Test Closed 1342/100 Valve to CST HV-155FOI2 4 Gate Anchor/Darling 600 SHB-00-15 Hin Flow Bypass Closed 1367/140 1367/100 HV-155F042 16 Gate ~ Anchor/DarlIng 150 SHB-00-7II , 'uppression Pool Closed 44/140 29/140 Suction HV-155FO&6 20 Gate Anchor/Der 1 ing 150 SHB-0-10 HPCl Tutbine Open 0/100 0/298 Exhaust IIV-155F075 3 Gate Anchor/Der l ing 150 SHB-000-2 Outboard Turbine Open 50/298 44/140 Vacuum Breaker HV-155F079 3 Gate Anchor/Darling 150 SHB-000-2 inboard Turbine Open 29/140 44/140 Vacuum Breaker I 335/140 HV-156F059 2 Globe Yarway 1500 SHB-000-2 Lube Oil Cooling Closed Mater I

Actual temperature depends on proximity to feedwater pipe.

• its design basis.

Closing of this valve Is not required and therefore, is not included In

Page 3 of 4 REACTOR CORE ISOLATION COOLINC (RCIC)

UNIT 2 LIHITORQUE OPERATINC BASES HAXQP(PSI) T( F)

VAI.VE SIZE VALVF. PRESSURE OPERATOR . SFRVICE NORHAL TAG NO. (INCH) TYPE HANUFACTURER CLASS SIZE DESCRIPTION POSITION OPEN CI.OSE NV-249F007 4 Cate Anchor/Darling 900 SHB-00-7$ Inboard Steam Open 0/565 1157/565 Isolat ion HV-?49FOUB 4 Cate Anchor/Darling 900 SHB-00-10 Outboard Steam l

Open fl5 1/<565 1157/565 Isolation HV-249FO13 6 Cate Anchor/Darling 900 SHB<<OO-25 RCIC Infection Closed 1162/$ 546 1162/140 FV-2491019 2 Globe Yuruay 15UO SH8-00-15 Hin FloM Bypass Closed 1300/140 1300/100 HV-?49F031 6 Cate Anchor/Dnr1 ing 150 SHB-000-2 Suction Closed Pump 44/140 29/140 Suppression Pool HV-249F059 10 Cate Anchor/Darling 150 SHB-00 Turbine Exhaust Open 0/100 0/298 Isolation HV-249F060 2 Clobe Yaruay 1500 SHB-000-2 Vacuum Pump Open 20/160 20/160 Discharge HV-?49F062 2 Cate Borg Warner 1501) SHB-000-5 Outboard Vacuum Open 11/240 44/140 Breaker HV-249F084 2 Cate Borg Warner 1500 SHB-000-5 Inboard Vacuum Open 29/140 44/140 f

-Breaker 1

Actual temperature depends on proximity tn feeduater pipe.

" zrvi~;3 12./z.>/8>

dh/c408c:mg

Page 4 of 4 IILCH PRESSURE COOLANT. LHJECTIOH (HPCl)

UNIT 2 LLHLTORQUE OPERATLHC BASES HAX4P(PSL)/T('F)

VAI.VE SLZF. VALVE PRESSURE OPERATOR ~ SERVICE HORHAL TAC NO. (INCH) TYPE HANUFACTURER CLASS SIZE DESCRl PT ION POS ITLOH OPEN CL.OSE HV-255FOOI lo Cate Anchor/Darling 900 SHB-1-60 Turbine Stean Closed 1157/565 1157/565 isolation HV-255F002 lo 'Cate Anchor/Darll>>g 600 S}IB-I-40 ~

Stean Supply Open 0/565 I.L57/565 inboard isolation hs HV-2SSF003 10 Cate Anchor/Darling 600 SHB-1-40 Steaa Supply Open I f57/4',565 1157/565 Outboard isolation HV-255F004 16 Cate Anchor/Darling 150 SHB-00-71f CST Suction Open 40/100 IIO/Ioo IIV-2SSF006 14 Cate Anchor/Darling 900 SHB-3-150 Ln)ection Shutoff Closed 1162/<546 1162/140 HV-255FU07 14 Cate Anchor/Darling 900 SHB-3-150 Pump Discharge Open 1162/<546 HV-255FOUB lo Clobe Anchor/Darling 900 SHB-3-Bo Full Flow Test Closed 1342/100 1342/100 Valve to CST IIV-2$5FOI 2 4 Cate Anchor/Dar1 f>>g 600 SHB-00-15 Htn Flow Bypass Closed 1367/140 1367/100 HV-255F042 16 Cate Anchor/Dar I l>>g 150 SHB-00-7lf Suppression Pool Closed 44/140 29l 140 Suction HV-255F066 20 Cate Anchor/Darling 150 SHB-6-10 HPCI Turbine Open O/IOO 0/298 Exhaust HV-255F075 3 Cate Anchor/Darlfng 150 SHB-000-2 Outboard Turbine Open 50/29B 44/140 Vacuua Breaker IIV-255F079 3 Cate Anchor/Darling 150 SHB-000-2 Inboard Turbine Open 29/140 44/L40 Vacuua Breaker IIV-256F059 2 Clobe Ysrway 150O SHB-000-2 Lube Oil Cooling Closed 335/140 Mater I

Actual tcnperaturc depends on proxfefty to feedwater pipe.

Closing of this valve is not required and therefore, is not included in its design basis.

Rcv'isa) iz/2~)81

ATTACHMENT 4 THRUST DETERMINATION EQUATIONS Equations Used To Calculate Actuation Stem Thrust (F):

F T 1

+72+ T3 T

1

~

(A1 x 4P + F1) x f where; A Effective Seat Area (Based on Seat Mean Diameter)

I 5P Design Basis h.P F = One Half of the Piping Axial Thermal Load 1

f Coefficient of Friction

.3 for Flex Wedge Gate Valve 1.1 for Globe Valve T2 A2x P where; A Cross Sectional Area of the Stem 2

P = System/Line Design Pressure T

3 Stuffing Box Load 1000 lbs (Stem Diameter ~1")

1500 1'bs (Stem Diameter >1" and ~ 1-1/2")

2500 lbs (Stem Diameter ~1-1/2" and ~ 2-1/2")

kwa/$ 003c:dek

I

ATTACHMENT 5 Page l IE AISLE TIN 05 05 Ql TOI Sf If INi IIN'LENENIAIIONSIAVIIAT AEACION COAE ISRAIION CICLINS I AS FINAIP QIICN SETT ITS I AS~I QITCN SEIIINSS I I VALVE TAS I- -t AS-fON I- -I TES I VlfFEOENT IAL I TEST INTWI I NUNIEA I FRL OPEN I OPEN 10Am% I ROSE I0RQf I TOAST SVIIOI I CPEAAAILIIT t FOLL OPEN I OPEN TORSOE I RO5E TONS% I TIOOOE QIIOI I PAIS SINlE I I I LINII QITCN t QINI ITPASS I QIICN IT/ASS I OPEN/ROSE I LINII QIIOI t QITCN OTPASS I QITCN ST/ASS I OPEN/ROSE I IOEN/ROSE I IN-149f001 951 Opec 951 Closed NA / 2.25 Operatic 91! Oyco 9ft Closed NA/ 1.5" 0/0 Static IONA'tatic W-IITF000 051 Oyce III Closed NA / 2.25 loicteraiaaat 911 Opco 911 Closed NA/2 0/0 INNATs IN-IITfpll 911 Opec 911 Opeo NA / 2.25 iadctcrs>aaot 911 0pco m Opea NA / 2 0/0 Siailarity to W-249FOIS FV-iltfOI9 051 0/ca 951 Closed NA / 1.2$ Opera)le 921 Opco 911 Closed NA / 1.25 190/.'90 Static NOVAls W.III'f05 I 911 0 /ca 911 Opec NA / 2 Operetta 9)l Opeo 911 Oyco NA / 1.25 0/0 Static Stro)e W.tltf059 911 Oyea 91L 0/ca NA / 1.$ Operable 911 Opco 911 Oyea NA / 1.5 0/0 Strole al Oesllo Oasis Coniltioas NV-II'IF040 971 Opec Vft Opca NA / 1.$ Opcrawa 'lit Opco VIE Opea NA / I.$ 12 / 0 Special lest W.IITF042 9lt Oyca 9tl Closed 941 Closed I /1.2$ Operable Vlt Opeo 911 Closed 911 Closed t,5 / 1.$ 0/0 Static NOYATs.

IN-IITFOOI 911 Oyca 941 Closed 941 Closed 1.5 / 1.5 Opera4le 941 Opco 941 Closed VIS Cl assi 1.5 / 1.5 0/0 Sisilarity to IN-lttf042 NOIESs v 5/r lap Pac Ac/Is!cd

+ +Far Aiditioaal Discassioa Sce laiicideal Valve SLtaevy Sacets

Faye 2 of 4 IE RULLEIIN 05 OJ SNIIOI SEIII16 IIOLENENIAIION SURIIRT HISN PRESSURE CIRANI INJECTION UNIT I

\ AS-FINO SNITCH SETTINSS AS.LEfl SNITCH SEIIINSS I I I VALVE TAS I- I AS-f OUNO -I TESI OIFfERENTIAL I IESI HEIINO I NLNLIER t FULL OPEN t OPEN IORRLK I 'r ISE IORIK I TOROUE SNITOI t OPERARILlly I fULL OPEN I OPEN TCOOUE I ClOSE TORIIX I TCHOLK SNIIOI I PRESSURE I LINII SNITCH I SNITCH RZPAS5 I SNIICH OTPASS I CPENICLOSE I LINII SNITDI I SNITCH OTPA55 I SNIIOI OTPASS I OPENICLOSE I IHENICLOSE f

IP7-1$ $ 001 99.91 Ooen Nh l91 Open NA I $ .5 Operahlc 971 Optn 971 0pca NA I 5.5 9I5 I 97$ HPCI thrutcr ty Sar veil lance HV. I SSf 002 971 Open 971 Closc4 Opcrahlc 911 Open 911 Closed NA I J 0 I0 Sisiluity to IPI-255F002 IIV.I 55f 00 1 971 Open 971 Closed NA I 2.S tsdctersiaaat 971 Open 971 Closed NAI J 0 I0 Srsitarity ts HV-255FOOJ IN.1$5f 00b 991 Opta 991 Closed Rl I I.IS Isdttcraisaat 971 Opco 971 Closed NA I2 0 I9 Static Strobe IN. 155f 00b 991 Open 971 Closed NA I J.IS Operable 971 Open 971 Closed NA I $ .75 0 I0 Sisiluity to HV-2$5F007 HV 1$ 5f007 911 Opca Vll Open NA I 2 5 Operable 911 Open 9ll Open NA I 1.5 0 I0 Si ~ Iluity to HV-2$$ F007 LN-I$5F008 971 Opca 971 Close4 971 Closed 2.$ I 2.5 Iedtttrsisaat 971 Open 971 Closed 971 Closed 1.$ I 1.5" IOO I t00 Sce Valve Swauy Sheet HV 1$ 5f012 971 Open 971 Closc4 NA I I ~ 15 Operable 911 Open 971 Closed NA I 1.7$ 125 I l00 Sce Valet Sasauy Sheet HV 1$ 5fil2 9bl Opca NA 9bl Open NA I 2.2$ Operable 971 Open 911 Closed NA I 2.25 + 0 I0 Static Strote f

HV. I 5$ Obb 971 Opca 971 Opea NA I 4.5 Optraile 971 Open 971 Opca NA I 4.5 OIO Strotc at Oesipa Oasis Coaiitions HV. I SSf07$ 911 Opta 911 Closc4 911 Closed I.S I 1.5 Opcrahlt 971 Open . 971 Closed 971 Closc4 I I I OIO Statrc SLrotc HV. I 55f 079 911 Opea 911 Closed Vll Closed lsdcttrsiaaat. 971 Opca 972 Closed 971 Closed I II OIO Static Strata HV 15bf05'9 901 Open 911 Open NA I I Opcrahlt 971 Open 971 Open NA I2 OIO See Valve Soaoary Shtct NOIES; Spris9 Pac Replaced For 044iliosal Discassion Sct ladivideal Valve Saasuy Shccls

Page 3 o r r IE DULETIN 05.0J QIIIOI SEIIIN6 INPLENENTATION SU%ANT AEACIIO CIIE IS%ATION COOLINS Ill 2 AS. FOND SNIIOI Sfll INSS AS. LEFT SNI'IOI SETIINSS I VALVE IA6 I- AS-fDUNS t- r -I ffST OIFFEZENTIAL I TfSl LIOOD I IZIZEA I FILL OPEN I OPEN TORO% I CLOSE TtNK t IOAOUE SNI'ICH I CPEAAZILIIT I fULL OPEN I TMUE I CtOSE IODIZE I SNIIOI I OPEN TOAOUE PDESQZIE I I Llhll QIIIOI I SNIIOI DTPASS I SNtlCN DTPASS I OPENIROSE I I 1INI I SNIIOI I SNIIOI DTPASS I SNIIOI DTPASS I OPEN/ROSE I IOE 0/ROSE W.2I9F001 911 Opta 97Z Closed NA I 2.1S Operable 911 Open 971 Closed HA I I.5 0 I0 Siailarily to W.II9f001 HV-2ITFOOO '971 Opes tl'I Closed NA I2 IAictefalsast 911 Open 911 Closed NA I2 IIIO I 0 Statrc NOVAIs HV-2ITFOIZ 91Z Opes 911 Opea NA I 2.2S lsdcteraioasl 971 Opea 911 Open NAI J IJSO I0 Static IIVATT fV-219f0I9 971 Open NA 971 Closc4 NA I I.25 Oper able 911 Opca 911 Closc4 NA I l.25 IJ00 I l90 Si ~ ilarity to FV lttfdlt HV 2I9FOJI 911 Opca 971 Optn NA I 9.5 Operable 911 Opca 911 Opto NA I0 OIO Statrc Strobe W.2I9F059 'tbl Opca tbl Open NA I I.S Operable 9bl Open tbl Opca NA I I. 5 0 I0 Slrole at Oesiln Oasis Conditions HV-2tlfdbp 971 Open 911 Opea NA I 1.5 Operable 911 Open 911 Open NA I2 0 I0 Sisilarity lo HV-IITFOAO HV-2I9FOAZ 911 Opcs 971 Closed 911 Cloud I.7S II Operablc 911 Opca . 971 Closc4 911 Closc4 I.75 I I.S OIO Static Slrote W 2I'IfODI 97! Ales 911 Cloud 971 Closed 2 I I.S Operable 911 Open '7Z Closed 911 Closed I.S I 1.5 0 I0 Srsilarity to W.IITFOb2 NOIE 6:

" Sprint Pac Acptaccd

~" For Addrtiooat Discsssroa See ladiviisal Valve Sosaary Sheets

Page 4 of 4 IE RIRLETIN DS-03 QIIOI SEI) tNS INPLENENIATIDN SIRVNRT NIQI PRESSURE COOLANT IN)ECIIOI

'lf 2

AS.FOONO QITOI SET TIROS AS LEfl QIIOI SEIIINSS t VALVE TAS AS.fOthdt IEST DIFFERENITM I TEST hEIIIO NORJER I FIRL OPEN I OPEN TORRID t CLOSE IOROIE I TORQUE SNIICN I OPERAOIL lly fDLL OPEN I OPQ TORQUE t CLOSE TRIREME t TDROOE QITOI I PRES SORE 'I I Llhll SVITOI t QIIOI OIPASS I SNIICN DTPASS I OPEN/CLOSE I Llhtl QIIOI I SRITCN OTPASS t Ql'ICN RTPASS I DPEN/CLOSE I 0/EN/aOSE HV.255F 00l 9)l Open NA 9)1 Opca NA I J.S Oyer ahle 9)k Oyea 911 O)cs IN I J.S VLS I BS IDCI Quarterly Svrvcsttascc W.)AF002 9)l Open 911 Closed NAI 3 O)crahlc 911 Opea 911 Close4 NAI 3 OIO Static telhts NV.255f00J 911 Opea 911 Closed Oycrahte 911 Opto '911 Closed NA I J OIO Static IIVAls HV.255f00i 9)1 Opca 911 Clostd NA I2 Oytrahle 911 Opto '911 Closed NA I 2 OIO Static Strotc W.255F004 9)1 Open NA 911 Closed IN l 4.5 Oytrahte 911 Open NA 4)l Closed NA / 2.5 OIO Sis>lusty to W 255F00)

W.)W00) ORL Opca 811 Open NA I 2.5 Dytrahlc 001 Opea D)1 Dpea NA I 2.5 OIO Stalic NOVAIs W.255f 000 'Bl Dptn 911 Closed Bi Closed 3.25 I 3.25 Oytrahle 911 Open 9)l Close4 9)1 Closed 3.25 I 3.25 i00 I 100 Sce Val vc Suosuy Shet t W.255f 012 9) 1 Oyca 9)J Closc4 NA I 1.25 ls4clersinast 'Bl Dpta 911 Closed IN I 1.)5 l)S I 400 See Valre Sussary Sheet W-255FOI) '911 Open 'Bl Open NA I 2 0/eraBc 'l1 Opca 9)t Closed NA I 2.25 0/0 Static Strote W-255FOLA 911 Dyes 9)l Open NA / I 0/trahle 911 Dyes 9)1 D/cs NA I 3.2S 0/0 Strole at Ocsiia Dasss Cosiilioas IIV 255f0)5 911 Open 9)l C)estd 9)l Clost4 I I 2.15 lsdclersisast Bi Dp~ . 9)2 Closed 9)1 Closed 3/J 0/0 Static NOVA)s HV.255f0)9 9)l Open 9)i Closed 9)1 Closed Isdctcrotaast 9)i Open 9)l Closed 9)l Closed  !.5 I I.S OIO Static Strolc NV 25bf 059 9)1 Open Bl Dpca NA I l.25 Otcrahle 9)1 Open 9)I 0/ca NA/ I.SV 0 I0 Sct Valvt Sussuy Sheet I

NOTES:

" Spris0 Pac Replaced for Additiosal Dsscsssion Stc lsdividwl Valvt Sueoaty Shtcts

ATTACHMENT 6 INDIVIDUALVALVE

SUMMARY

SHEETS

PAGE I OF 4 VALVE

SUMMARY

SHEET HV-149 F007 VALVE SIZE: 4" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT..MANUFACT.: Limitor que MOTOR SIZE: 7-1/2 FT-LBS MOTOR SPEED'700 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Inboard Steam Isolation Valve

'DESIGN BASIS.'AXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 0 CLOSING: 1157 DISCUSSION:

This valve is normally maintained in the open position so no normal operation is required. Abnormal conditions include closing against full reactor pressure after a steam line break is detected by the Area Leak Detection System. Abnormal opening is for recovery after an inadvertent closing. Pressure would first be equalized across the valve by opening the bypass valve.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-149F007 RE UIRED SWITCH SETTINGS:

SPRING &AC NUMBER: 60-600-0022-1 NORMAL TORQUE SWITCH SETTING: 1-3/8 CORRESPONDING OUTPUT TORQUE: 105 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2-3/4 CORRESPONDING OUTPUT TORQUE: 236 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING:. 94 (Lbs) OPENING: 113 (Ft-Lbs) OPENING: N/A CLOSING: 6877 (Lbs) CLOSING: 113 (Ft-Lbs) CLOSING: 1-1/2

'REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97% Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K in the event of a steam line break. The opening direction travel is governed solely by a full open limit switch set at 97%

open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-149F007 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-1/4 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion I;IMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 955 Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 95K Closed AS LEFT: 97K Closed DISCUSSION:

Design spring pac was a 60-600-0022-1 with a corresponding setting of 1-1/2 for 120 ft-lbs output torque. As-found spring pac was a 60-600-0048-1 set at 2-1/4 for 115 ft-lbs output torque. As-left spring pac was a 60-600-0049-1 with a setting of l-l/2 for 130 ft-lbs output.

torque. Installation of this spring pac was approved by engineering via a Replacement Item Equivalency Evaluation (RIEE).

AS-FOUND OPERABILITY:

The valve/assembly was operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-149F007 TESTING:

DISCUSSION:

A MOVAT's was performed on the valve in the as-left configuration under ambient conditions to verify proper limit switch settings and adequate thrust development. All limit switches were shown to be set and operating properly. The thrust developed was 7425 lbs as compared to the calculated 6877 lbs. required. This leads to the conclusion that the valve will be operable under its maximum operating conditions.

ANOMALIES:

The only discrepancy .identified was between the original normal torque switch setting (1-3/8) and.the required normal torque switch setting (1-1/2) determined as a result of 'the valve design review.. Through extensiv'e research it was determined that although a conservative .

differential pressure was specified in the valve purchase order a lesser value was used by the valve vendor in the actuator sizing calculation. It is for this. reason that the original normal torque switch setting was inadequate.

rmhmea102a

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-149F008 VALVE SIZE: 4" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 10 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Outboard Steam Isolation Valve

'I DESIGN BASIS'AXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1157 CLOSING: 1157 DISCUSSION:

This valve is normally maintained in the open position so no normal operation is required. If HV-149F008 were inadvertantly closed, HV-149F007 would also have to be closed before either valve could be re-opened. With both valves closed, HV-149F008 would be re-opened to allow moisture in the line to,drain. Abnormal closing is based on isolation against full reactor pressure after detection of a steam line break.

VALVE

SUMMARY

SHEET HV-149 F008 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0022-1 NORMAL TORQUE SWITCH SETTING: l-l/4 CORRESPONDING OUTPUT TORQUE: 105 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2-1/8 CORRESPONDING OUTPUT TORQUE: 186 (Ft-Lbs)

REQUIRED THRUST:

'EQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: < 6877 (Lbs) OPENING: <113 (Ft-Lbs) OPENING: N/A CLOSING: 6877 (Lbs) CLOSING: 113 (Ft-Lbs) CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING CLOSING DIRECTION:

DIRECTION'ORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97% Closed FULL OPEN LIMIT: 97M Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing

'irection it is bypassed the first 97K of travel to insure that the valve will close at least 97K in the event of a steam line break. The opening direction travel is governed solely by a full open limit switch set at 97%

open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-149 F008 VERIFICATION OF SWITCH SETTINGS:

TOR(UE SWITCH:

OPEN DIRECTION'S-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-1/4 AS-LEFT: 2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion .

LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A. AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 85K Open AS LEFT: 97% Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 77% Closed AS LEFT: 97% Closed DISCUSSION:

Design spr ing pack was a 60-600-0022-1 with a corresponding setting of l-l/2 for a torque output of 120 ft-lbs. As found spring pac was a 60-600-0050-1 with a close torque switch setting of 2-1/4 for a torque output of 50 ft-lbs. Final as-left spring pac was a 60-600-0049-1 with a close torque switch setting of 2 for 148 ft-lbs torque output.

Installation of this spring pac was approved by engineering via an RIEE.

AS-FOUND OPERABILITY:

The as-found spring pac/torque switch setting combination would not have provided sufficient torque to fully close the valve against the design basis differential pressure. The close torque swtich was only bypassed for 77K of travel therefore it is unlikely that the valve would have fully closed against a design basis differential pressure.

PAGE 4 OF '4 VALVE

SUMMARY

SHEET HV-149F008 TESTING:

DISCUSSION:

A MOVAT's was performed on the valve assembly after the new spring pac was installed. At the time the MOVAT's was completed the torque switch was set at 1-1/4 (which is below the vendor recommended minimum for this spring pac). The MOVAT's verified that the limit switches were set correctly but that the thrust developed was not sufficient to close the valve against the design basis differential pressure. The thrust developed was 5442 lbs as compared to the design required thrust of 6877.

The design required thrust exceeded the actual thrust by 26X. The close torque switch was reset to 2. The worm shaft input torque required to trip the torque switch at this point was measured and verified to exceed (by greater than 26K) the worm shaft iriput torque required to trip the torque switch at a setting of 1-1/4. This valve is identical to HV-249F008 therefore the MOVAT's performed on that vive provides additional justification of operability against maximum 'differential.

pressures.

ANOMALIES:

The discrepancy between the original normal torque switch setting and the required normal switch setting determined as a result of the valve design review is due to the valve vendor using a differential pressure in the actuator sizing calculation which was less than specified in the purchase documents.

In the as-found condition, the valve would not have closed against maximum differential pressure due to the wrong spring pac being installed.

rmhmea102a

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-149 F013 VALVE SIZE: 6" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 25 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Injection Shut-Off Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1162 CLOSING: 1162 DISCUSSION:

This valve is automat-'. ally opened on RCIC system initiation signal provided the steam supply valves are at least off their seats. The differential pressure is based on full reactor backpressure on the valve before'he RICI pump has developed speed. Normal closing (150 psid) is based on low reactor pressure and no pump pressure. Abnormal closing is based on full reactor backpressure and no pump pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-149F013 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0022-1 NORMAL TORQUE SWITCH SETTING: 2-1/4 CORRESPONDING OUTPUT TORQUE: 196 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2-3/4 CORRESPONDING OUTPUT TORQUE: 236 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 8024.(Lbs) OPENING: 150 (Ft-Lbs) OPENING: N/A CLOSING: 12820 (Lbs) CLOSING: 240 (Ft-Lbs) CLOSING: 3 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel to insure the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

The required torque switch setting of 3 exceeds the current maximum setting. The actuator nuclear thrust rating is 14,000 lbs.

PAGE 3 OF 4

'VALVE

SUMMARY

SHEET HV-149F013 VERIFICATION OF SMITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-1/4 AS-LEFT: 2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97~ Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97% Open AS LEFT: 97K Open DISCUSSION:

Design and as-found spring pac was a 60-600-0022-1. As-left spring pac was a 60-600-0047-1 with a torque switch setting of 2 for a torque output of 240 ft-lbs.

AS-FOUND OPERABILITY:

The as-found operability of the valve in the closing direction was indeterminant. The valve would have begun to close due to the torque switch bypass, however it is uncertain if the valve would have closed 100%

against maximum differential pressure due to possible lower than required torque.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-149F013 TESTING:

DISCUSSION:

A static stroke was performed on this valve assembly in the as-left condition to verify operability and adequacy of limit switch settings. A static opening differential pressure test was performed in 1984 on the Unit 2 counterpart to this valve. The valve stroked open successfully against a differential pressure of 1350 psi. Since the torque switch is not in the opening circuit in either of the valves the results of this test also apply to the Unit 1 valve.

. ANOMALIES:

DISCUSSION:

The discrepancy between the original normal .torque switch setting and the setting determined necessary as a result of the valve design review is due to an apparent miscommunication between the valve vendor and the actuator manufacturer. The valve vendor calculated a required thrust of 14,350 lbs while the actuator manufacturer based the actuator size on 11,083 lbs of thrust required. Consequently in the as-found condition the valve may not have closed completely against maximum differential pressure.

The actual as-left thrust developed exceeds the actuator nuclear rating.

This does not create any immediate concerns but could lead to eventual fatigue problems or excessive maintenance requirements. A decision whether to replace the actuator with the next larger size is under evaluation.

rmhmea102a

PAGE 1 OF 4 VALVE

SUMMARY

SHEET FV-149F019 P

VALVE SIZE: 2" VALVE TYPE: Globe VALVE MANUFACT.: Yarway ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Li;.;.: torque MOTOR SIZE: 15 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Minimum Flow Bypass to the Suppression Pool DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1300 CLOSING: 1300 DISCUSSION:

Normal opening of this valve is at 125 PSID based on this valve receiving an automatic opening signal when the RCIC pump discharge pressure is 125 psig and discharge flow C 75 gpm. Valve automatically closes when either steam shut-off valve closes or when pump discharge flow exceeds 150 gpm. Normal closing is based on pump head at 150 gpm flow. Abnormal opening is based on opening against pump shut-off head after an inadvertant closure of the valve.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET F V-149F019 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0048-1 NORMAL TORQUE SWITCH SETTING: 1-1/4 CORRESPONDING OUTPUT TORQUE: 60 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 114 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

I OPENING: 3746 (Lbs') 'OPENING: 48 (Ft-Lbs) OPENING: N/A CLOSING: 3746 (Lbs') CLOSING: 48 (Ft-Lbs) CLOSING 1. 1/4 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97% of travel to insure that the valve will close at least 97~. The opening direction travel is governed solely by a full open limit switch set at 97K open.

. VALVE

SUMMARY

SHEET F V-149F019 PAGE 3 OF 4 VERIFICATION OF SWITCH SETTINGS:

I TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 1-1/4 AS-LEFT: 1-1/4 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified LIMIT. SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 85K Open AS LEFT: 92K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 95K Closed AS LEFT: 97K Closed DISCUSSION:

Since the valve closes against differential pressure during quarterly RCIC surveillance testing, spring pac verification was deemed unnecessary.

Stroking against differential pressure will verify valve operability.

AS-FOUND OPERABILITY:

The valve/actuator assembly was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET FV-149F019 TESTING:

DISCUSSION:

A MOVAT's was performed on this valve in the as-left condition to verify proper limit switch settings and adequate thrust development. All limit switches were shown to be set and operating properly. The thrust developed was 12,785 lbs. as compared to the calculated 3746 lbs.

required. During RCIC quarterly surveillance, the valve closes against RCIC pump discharge pressure. From data obtained from existing plant instrumentation as well as instrumentation temporarily added to the system for this purpose, it was estimated that this valve closes against a differential pressure in excess of 190 PSID during a RCIC flow test.

ANOMALIES:

DISCUSSION:

There were no anomalies experienced with this valve.

rmhmeal02a

PAGE I OF 4 VALVE

SUMMARY

SHEET HV-149F031 VALVE SIZE: 6" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 2 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Pump Suction from Suppression Pool Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 44 CLOSING: 29 DISCUSSION:

Normal operation of this valve is conservatively based on the difference between suppression pool pressure and atmospheric pressure. Abnormal opening is based on 0 PSIA on the pump side.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-149F031 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0023-1 (Ol d Style)

NORMAL TORQUE SWITCH SETTING: l-l/2 CORRESPONDING OUTPUT TORQUE: 21 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 4 CORRESPONDING OUTPUT TORQUE: 40 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 2103 (Lbs) OPENING: 23 (Ft-Lbs) OPENING: N/A CLOSING: 1750 (Lbs) CLOSING: 19 (Ft-Lbs) CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97'A Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-149F031 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2 AS-LEFT: 1-1/4 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: ~S-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97% Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Open AS LEFT: 97< Open DISCUSSION:

Design spring pac is an old style 60-600-0023-1 with a torque switch setting of l-l/2 for an output torque of 21 ft-lbs. As found spring pac was a new style 60-600-0023-1 spring pac with a torque switch setting of 2 for an actuator output torque of 36 ft-lbs. The new style spring pac remained installed and the torque switch was set at l-l/4 for an output torque of 26 ft-lbs.

AS-FOUND OPERABILITY:

The valve/actuator assembly was concluded to be operable in'the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-149F031 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and acceptability of limit switch settings. Since the valve maximum design basis differential pressure is very small (44 PSID Opening; 29 PSID Closing) a static stroke is sufficient to verify operability of the valve.

Most of the thrust required to actuate the valve is to overcome running loads such as stuffing box friction while very little thrust is required to overcome the pressure loads.

ANOMALIES:

DISCUSSION:

There were no anomalies experienced with this valve.

ka/ms1023cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-149F059 VALVE SIZE: 10" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE:

10 FT-LBS MOTOR SPEED 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Turbine Exhaust Isolation Valve DE . QN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 0 CLOSING: 0 DISCUSSION:

Operation is based on opening this valve prior to opening the steam inlet shut-off valve and closing this valve after the steam inlet shut-off valve. The valve is controlled by a key-lock switch and the key can only be removed with the valve in the open position.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-149F059 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0022-1 NORMAL TORQUE SWITCH SETTING: 1 CORRESPONDING OUTPUT TORQUE 81 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 129 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 1910 (Lbs) OPENING: 26 (Ft-Lbs) OPENING: N/A

'LOSING: 1500 (Lbs) CLOSING:'0 (Ft-Lbs) CLOSING: 1 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammer blow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-149 F059 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS- FOUND: 1-1/2 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: PS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Open AS LEFT: 97% Open DISCUSSION:

Verification of spring pac was not required since the valve was checked for operability by stroking against its maximum design basis differential pressure.

AS-FOUND OPERABILITY:

The valve assembly was concluded to be operable in the as-found condition.

I PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-149 F059 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance against maximum design basis differential pressure to verify operability and also to verify the acceptability of limit switch settings.

ANOMALIES:

DISCUSSION:

There were no anomalies experienced with this valve.

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-149F060 VALVE SIZE: 2" VALVE TYPE: Globe VALVE MANUFACT.: Yarway ACTUATOR TYPE'MB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 2 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Vacuum Pump Discharge Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 20 CLOSING: 20 DISCUSSION:

This valve is locked open so there is no normal operation. Abnormal operation is based on opening and closing the valve against maximum vacuum pump discharge head.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-149 F060 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0024-1 NORMAL TORQUE SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 76 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 80 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 1000 (Lbs) OPENING: 14 (Ft-Lbs) OPENING: N/A r

CLOSING: 1042 (Lbs) CLOSING: 14 (Ft-Lbs) CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING CLOSING DIRECTION:

DIRECTION'ORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97%

open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-149 F060 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 1-1/2 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified-LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS<<FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

'T.S. BYPASS: AS-FOUND: 97K Open AS LEFT: 97K Open DISCUSSION:

Verification of spring pac was not required since the design basis differential pressure, against which this valve must stroke, is very small (20 PSID). Static stroke test is sufficient to verify operability.

AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-149 F060 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and acceptability of limit switch settings. Since the valve design basis maximum differential pressure is very small (20 PSID) a static stroke is sufficient to verify operability of the valve. Most of the thrust is required to overcome running loads such as stuffing box loads while very little thrust is needed to overcome pressure loads. The running loads are present even during a static stroke.

ANOMALIES:

DISCUSSION:

There were no anomalies experienced with this valve.

ka/msl023cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-149 F062 VALVE SIZE: 2" VALVE TYPE: Gate VALVE MANUFACT.: Borg-Warner ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limi torque MOTOR SIZE 5 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Turbine Exhaust Outboard Vacuum Breaker DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: ll CLOSING: 44 DISCUSSION:

Valve is normally open which is the correct position for normal operation.

Abnormal opening after'inadvertent closure is based on maximum turbine discharge pressure. Abnormal closing is based on maximum suppression pool pressure and assumes 0 PSIA in the steam line.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET

~ HV-149F062 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0023-1 NORMAL TORQUE SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 30 (Ft-Lb)

MAX. TORQUE SWITCH SETTING: 3-1/2 CORRESPONDING OUTPUT TORQUE: 56 (Ft-Lb)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 1022 (Lbs) OPENING: 15 (Ft-Lbs) OPENING: l-l/2 CLOSING: I'056 (Lbs) CLOSING!" 15 (Ft-Lbs) CLOSING: 1-1/2 .

REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: 97K Closed TORQUE SWITCH BYPASS: 97% Closed I

FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K when a close signal is received. In the opening direction the torque switch is bypassed the first 3X of travel so the actuator does not trip due to hammerblow and disc pullout loads. The full open limit switch will trip the actuator at 97% of full open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-149F062 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: 1 AS LEFT: 1-1/2 CLOSE DIRECTION: AS-FOUND: 1-1/4 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: 94K Closed AS LEFT: 97K Closed FULL OPEN LIMIT: AS-FOUND: 94K Open AS LEFT: 97% Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 94K Closed AS LEFT: 97K Closed DISCUSSION:

Design spring pac is a new style 60-600-0023-1. Torque required to actuate valve is 15 ft-lbs. As found spring pac was an old style 60-600-0023-1 with an open torque with setting of 1 (16 ft-lbs) and a close setting of 1-1/4 (18 Ft-lbs). As-left spring pac is a new style 60-600-0023-1 with both an open and close torque switch setting of 1-1/2 (30 Ft-Lbs).

AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

r PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-149F062 TESTING:

DISCUSSION:

F A MOVAT's was performed on the valve in the as>>left condition .under ambient conditions to verify proper limit switch settings and adequate thrust development. All limit switches were shown to be set and operating properly. The thrust developed was 6056 lbs as compared to the calculated required thrust of 1056 lbs. This leads to the conclusion that the valve will.remain operable under its maximum operating conditions.

ANOMALIES:

The as found switch setting were below nameplate specified. Also the as-found spring pac was not correct. Neither of these caused an operability concern on this valve.

rmhmea102a

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-149F084 VALVE SIZE: 2" VALVE TYPE: Gate VALVE MANUFACT.: Borg-Marner ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 5 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Turbine Exhaust Inboard Vacuum Breaker

~

DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING'9 CLOSING: 44 DISCUSSION:

Valve is normally open which is the correct position for normal operation.

Abnormal opening after inadvertant closure is based on maximum suppression pool pressure. Abnormal closing is based on maximum suppression pool pressure combined with 0 PSIA in the steam line.

VALVE

SUMMARY

SHEET HV-149F084 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0023-1 (New Style)

NORMAL TORQUE SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 30 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-1/2 CORRESPONDING OUTPUT TORQUE: 56 (Ft-Lbs)

REQUIRED THRUST: TORQUE: REQ'D T.S. SETTING:

OPENING: (Lbs)'EQUIRED 1035 (Lbs) OPENING: 16 (Ft-'Lbs) OPENING: 1-1/2 CLOSING: 1056 16 (Ft-Lbs) 'LOSING:

CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: 97% Closed TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97% when a close signal is received. In the opening direction the torque switch is bypassed the first 3X of travel so the actuator does not trip due to hammerblow and disc pullout loads. The full open limit switch will trip the actuator at 97'A of full open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-149F084 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS- FOUND: 1-1/2 AS LEFT: 1-1/2 CLOSE DIRECTION: AS-FOUND: 1-1/2 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: 96K Closed AS LEFT: 96K Closed FULL OPEN LIMIT: AS-FOUND: 97K Open 'S LEFT: 96K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 96K Closed AS LEFT: 96K Closed DISCUSSION:

Design spring pac is a new style 60-600-0023-1. The torque required to actuate the valve is 16 ft-lbs. As-found spring pac was an old style 60-600-0023-1 with both open and close torque switch settings of 1-1/2 for a torque output of 20 ft-lbs. The as-left spring pac is a new style 60-600-0023-1 with both an open and close torque switch setting of 1-1/2 for a torque output of 30 ft-lbs.

AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-149F084 TESTING:

OISCUSS ION:

The valve was electrically stroked post-maintenance to verify operability and proper limit switch settings. It was verified that all limit switches were set properly.

Operability of the valve under design basis operating conditions is justified by similarity to HV-149F062.

ANOMALI ES:

As-found spring pac was not correct, however, the as-found operability of the valve'as not affected.

ka/msl023cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155F001 VALVE SIZE: 10" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 1 ACT. MANUFACT.: Limitorque MOTOR SIZE: 60 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Turbine Steam Supply Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

P OPENING: 1157 CLOSING: 1157 DISCUSSION:

This valve is normally maintained in the closed position. Opening is based on full reactor pressure upstream and atmospheric pressure in the turbine. Closing is based on full reactor pressure upstream and atmospheric pressure downstream after system test.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155 F001 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0007-1 NORMAL TORQUE SWITCH SETTING: 3-1/2 CORRESPONDING OUTPUT TORQUE: 800 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 850 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 19,447 (Lbs) OPENING: 502 (Ft-Lbs) OPENING: N/A CLOSING: 26,710 (Lbs) CLOSING: 690 (Ft-Lbs) CLOSING: 3-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 9/4 open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155F001 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 3-1/2 AS-LEFT: 3-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not verified LIMIT SWITCHES:

OPEN DIR"".CTION:

T.S. BYPASS: AS-FOUND: N/A. AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 99.9X Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 99K Open AS LEFT: 97K Open DISCUSSION:

Spring pac verification was not required since this valve strokes at or near maximum differential pressure during quarterly HPCI surveillance testing.

AS-FOUND OPERABILITY:

full it didlimit The as-found open switch was set too close to the backseated position although not appear that the valve was electrically backseating.

The as-found torque switch bypass was not conservatively set and could possibly have resulted in premature actuator trip although this was not noted during recent HPCI surveillances.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155 F001 TESTING:

DISCUSSION:

The valve was electrically stroked to verify operability and acceptability of limit switch settings. Operability against maximum differential pressure is justified by HPCI quarterly flow testing when the valve actuates against full reactor pressure. Data obtained from an instrumented test on Unit 1 showed that the valve opened against a differential pressure of -965 psi. Based on the fact that the torque switch is not in the opening circuit it is concluded that the valve would open against pressures in excess of 1157 PSID. The test data indicates the valve closed against a differential pressur e of 975 PSI. The importance of the capability of the .valve to close against higher pressures is insignificant since 'closing is not a design safety function for this valve.

ANOMALIES:

The as-found settings on both the full open limit switch and the torque switch bypass were unconservative, however they did not appear to adversely affect valve operability.

ka/msl066cc:(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155F002 VALVE SIZE: 10" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE'MB ACTUATOR SIZE: 1 ACT. MANUFACT.: Limitorque MOTOR SIZE: 40 FT-LBS MOTOR SPEED: 1735 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Steam Supply Inboard Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 0 CLOSING: 1157 DISCUSSION:

This valve is normally maintained open so no normal operation is required.

If HV-155F002 were inadvertantly closed, HV-155F003 would also have to be closed before either valve was re-opened. With both valves closed, the outboard valve (F003) is opened to allow moisture in the line to drain.

Line pressure across HV-155F002 is. equalized by opening HV-155F100 (bypass valve). This will allow the line to warm up slowly. Once the line is warmed up F002 is re-opened. Valve closing is based on isolation of a steam line break with the reactor at full pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155F002 RE UIRED SWITCH SETTINGS':

SPRING PAC NUMBER: 60-600-0007-1 NORMAL TORQUE SWITCH SETTING: 2-1/2 CORRESPONDING OUTPUT TORQUE: 516 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 850 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: ~0 (Lbs) OPENING: ~ 0 (Ft-Lbs) OPENING: N/A CLOSING: 28,718 (Lbs). CLOSING: 583 (Ft-Lbs) CLOSING: 3 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 9?% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97%. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155F002 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 3 AS-LEFT: 3 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

h OPEN DIRECTION:

T.S. BYPASS: AS-FOUND'/A- AS LEFT'/A FULL OPEN LIMIT: AS-FOUND: 97% Open AS LEFT: 97% Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K ~ losed DISCUSSION:

None AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155 F002 TESTING:

DISCUSSION:

The valve assembly was electrically stroked post-maintenance to verify operability and correct limit switch settings. Maximum design basis operability is based on similarity to HV-255F002.

ANOMALIES:

The discrepancy identified was between the original normal specified torque switch setting (2-1/2)'nd the required normal torque switch setting (3) determined as a result of the valve design review. It has been determined that the inadequate original design setting was th'e result of the valve vendor using an incorrect differential pressure in the actuator sizing caIculation.

ka/ms1066cc:(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155F003 VALVE SIZE: 10" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 1 ACT. MANUFACT.: Li;.'torque MOTOR SIZE: 40 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Steam Supply Outboard Isolation DESIGN BASIS MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1157 CLOSING: 1157 DISCUSSION:

This valve is normally maintained open so no normal operation is required.

Opening is based on recovery after an inadvertant closure during a HPCI injection. Closing is based on a steam line break at full reactor pressure.

'PAGE 20F 4 VALVE

SUMMARY

SHEET HV-155F003 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0007-1 NORMAL TORQUE SWITCH SETTING: 2-1/2 CORRESPONDING OUTPUT TORQUE: 516 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 850 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: <28,718 (Lbs) . . OPENING: C583(Ft-Lbs) OPENING: N/A CLOSING: 28,718 (Lbs) CLOSING: 583 (Ft-Lbs) CLOSING: 3, 0

REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97% of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155F003 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-1/2 AS-LEFT: 3 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

OPEN DIRECTION'.S.

BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97% Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

As found close torque switch setting was set too low.

AS-FOUND OPERABILITY The as-found operability in the closing direction was indeterminant due to the low torque switch setting. The valve would have closed at least 97K due to the torque switch bypass, however it is uncertain if would have continued to close to 100% closed because of the lower than the valve required torque switch setting.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155 F003 TESTING:

DISCUSSION:

The valve assembly was electrically stoked post-maintenance to verify operability and correct limit switch settings. Maximum design basis operability is based on similarlity to HV-255F003, ANOMALIES:

DISCUSSION:

The only discrepency identified was between original normal specified torque switch setting (2-1/2) and the required normal torque switch setting (3) determined as a result of the valve design review. It has been determined that the inadequate original design setting was the result of the valve vendor using an incorrect differential pressure in the actuator sizing calculation. Consequently in the as-found condition, the valve may not have closed completely against maximum differential pressure.

ka/ms1066cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155F004 VALVE SIZE: 16" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 7-1/2 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: Condensate Storage Tank Suction Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 40 CLOSING: 40 DISCUSSION:

Even though this valve is normally open, it will receive an automatic opening signal on a HPCI initiation signal provided HV-155F042 (suppression pool suction valve) is not open. If HV-155F042 is open, HV-155F004 will receive an automatic close signal. Both opening and closing are based on actuating against CST static head.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155 F004 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0021-1 NORMAL TORQUE SWITCH SETTING: 1-3/4 CORRESPONDING OUTPUT TORQUE: 71 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-1/4 CORRESPONDING OUTPUT TORQUE: 108 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S.. SETTING:

~

OPENING: 4675 (Lb's) OPENING: 69 (Ft-Lbs) OPENING: N/A CLOSING: 4851 (Lbs) CLOSING: 72 (Ft-.Lbs) CLOSING: 2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING CLOSING DIRECTION:

DIRECTION'ORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97M Open DISCUSSION'.

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155F004 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT'/A CLOSE DIRECTION: AS-FOUND: 1-3/4 AS-LEFT: 2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 99K Open AS LEFT: 97% Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 99K Closed AS LEFT: 97% Closed DISCUSSION:

As-found close torque switch was set too low.

AS-FOUND OPERABILITY

'he as-found operability in the closing direction was indeterminant due to the low torque switch setting. The valve would have closed at leas 99K due to the torque switch bypass, however it is uncertain if the valve would have continued to close beyond that point under design basis conditions because of the low torque switch setting.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155 F004 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance under static conditions to verify operability and acceptability of limit switch settings. Since the valve maximum design basis differential pressure is very small (40 PSID) a static stroke test is sufficient to verify operability of the valve.

ANOMALIES:

DISCUSSION:

One discrepancy identified was between the original normal specified torque switch setting (1-3/4) and that calculated as a result of the valve design review (2). This discrepancy is due to an apparent miscommunication between the valve vendor and the actuator manufacturer.

The valve vendor calculated a required thrust of 6614 lbs while the actuator manufacturer based the torque switch settings on a required thrust of 4728 lbs. Consequently in the as-found condition the valve may not have closed completely against maximum differential pressure.

Also the as-found limit switch settings were not conservatively set, however this did not appear to adversely affect valve operability.

ka/ms1066cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155 F006 VALVE SIZE: 14" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SB ACTUATOR SIZE: 3 ACT. MANUFACT.: Limitorque MOTOR SIZE: 150 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Injection Shut-Off Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1162 CLOSING: 1162 DISCUSSION:

Valve automatically opens on HPCI system initiation signal provided the turbine steam isolation valve (HV-155F001) and the turbine steam inlet valve are open or in the opening process. Thus, the valve will open against full reactor pressure on the downstream side since the HPCI pump would not be up to speed. Abnormal closing is based on full reactor pressure and no pump discharge pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155 F006 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0011-1 NORMAL TORQUE SWITCH SETTING: l-l/2 CORRESPONDING OUTPUT TORQUE: 1374 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 3190 (Ft-Lbs)

REQUIRED THRUST: '

REQUIRED TORQUE: REQ T.S. SETTING:

OPENING: 32,334 (lbs') OPENING: 909 (Ft-Lbs) OPENING: N/A CLOSING: 42,299 (Lbs), .CLOSING: 1189 (Ft-Lbs) CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97% Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97% open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155 F006 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 3-3/4 AS-LEFT: 3-3/4 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS- FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 99K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

Design spring pac is a 60-600-0011-1 with a torque switch setting of 1-1/2 for a torque output of 1374 ft-lbs. As-found and as-left spring pac is a 60-600-0078-1 with a torque switch setting of 3-3/4 for an output torque of 2000 ft-lbs. Installation of 60-600-0078-1 was approved via a Replacement Item Equivalency Evaluation (RIEE).

As-found full open limit switch was not conservatively set but the valve did not appear to be electrically backseating.

AS-FOUND OPERABILITY:

The valve has concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155 F006 TESTING:

DISCUSS ION:

The valve was electrically stroked post-maintenance under static conditions to verify operability a'nd correct limit switch settings.

Design basis operability is justified based on similarity to HV-255F007.

ANOMALIES: ~

DISCUSSION:

The only anomoly i denti fi ed was that the as-found full open limit switch was not conservatively set. The valve, however, did not appear to'e electrically backseating.

ka/ms1066cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155 F007 VALVE SIZE: 14" VALVE TYPE: Gate VALVE MANUFACT.: "Anchor Dar 1 ing ACTUATOR TYPE: SB ACTUATOR SIZE: 3 ACT. MANUFACT.: Limitorque MOTOR SIZE: 150 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Pump Discharge Valve

'DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PS ID):

OPENING: 205 CLOSING: 1162 DISCUSSION:

This valve is normally open. Opening is based on HPCI pump running on minimum bypass and HV-155F006 open. Closing is based on reverse pressure from the reactor at full pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155F007 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0011-1 NORMAL TORQUE SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 1374 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 3190 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: ' T.S. SETTING:

REQ OPENING: 4129 (Lbs) OPENING: 116 (Ft-Lbs) OPENING: N/A CLOSING: 42299 (Lbs) CLOSING: 1189 (Ft-Lbs) CLOS IN,G: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOS ING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155 F007 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-1/2 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIfIED): See Discussion

'LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 94K Open AS LEFT: 94K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 94K Open 'S LEFT; 94K Open DISCUSSION:

Design spring pac is a 60-600-0011-1 with a normal torque switch setting of 2-1/2 for an output torque of 1374 ft-lbs. As-found was a 60-600-0078-1 spring pac with a torque switch setting of 2-1/2 for an output torque of 1400 ft-lbs. As-left spring pac was a 60-600-0079-1 with a torque switch setting of 1-1/2 for an output torque of 2100 ft-lbs.

AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155F007 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and correct switch settings. Design basis operability is justified based on similarity to HV-255F007. The two valves are identical except that HV-255F007 has a 60-600-0078-1 spring pac with a torque switch setting of 2-1/2 for 1400 ft-lbs ;;orque output while HV-155F007 has a 60-600-0079-1 spring pac with a. torque switch setting of 1-1/2 for a torque output of 2100 ft-lbs.

ANOMALIES:

DISCUSSION:

There were no anomalies experienced with this valve.

ka/msl066cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155F008 VALVE SIZE: 10" VALVE TYPE: Globe VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 3 ACT. MANUFACT.: Limitorque MOTOR SIZE: 80 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Full Fl.ow Test Valve to Condensate Storage Tank h

DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1342 CLOSING: 1342 DISCUSSION:

This valve automatically closes on HPCI initiation signal. Opening and closing is based on maximum pump head at minimum flow.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155F008 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0011-1 NORMAL TORQUE SWITCH SETTING: 2-1/4 CORRESPONDING OUTPUT TORQUE: 1844 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3 ., CORRESPONDING OUTPUT TORQUE: 2560 (Ft-Lbs)

REQUIRED THRUST: REQUIRED REQ'D T.S. SETTING:

OPENING: ~0 (Lbs)*

TORQUE'PENING:

0 .(Ft-Lbs )

\

, OPENING: 2-1/2 CLOSING: 88,754 (Lbs) CLOSING: 2,024 (Ft-L'bs). CLOSING: 2-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: 97K Closed TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that

~

the valve will close at least 97% when a close signal is received. In the opening direction the torque switch is bypassed the first 3X of travel such that the actuator does not trip due to hammberblow and disc pullout loads. The full open limit switch will trip the actuator at 97K full open.

• The higher pressure is below the valve disc at maximum differential conditions and will act to open the valve.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155 F008 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION'S- FOUND: 2-1/2 AS LEFT: 1-1/2 CLOSE DIRECTION: AS-FOUND: 2-1/2 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED); See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: 97$ Closed AS LEFT: 97% Closed FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

Design spring pac is a 60-600-0011-1 with an open and close torque switch setting of 2-1/2 for a torque output of 2024 ft-lbs. As-found spring pac was a 60-600-0078-1 with open and close torque switch settings of 2-1/2 for a torque output of 1400 ft-lbs. As-left spring pac was a 60-600-0079-1 with open and close torque switoh settings of 1-1/2 for a torque output of 2150 ft-lbs.

AS-FOUND OPERABILITY:

The as-found operability in the closing direction was indeterminant due to the incorrect spring pac being installed. The valve would have closed at least 97K due to the torque switch bypass, however it is uncertain valve would have continued to close to 1005 closed before torque switch if the trip.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155F008 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and correct switch settings. Operability against maximum differential pressure is justified by quarterly HPCI flow test. Data obtained from an instrumented test on Unit 1 showed that HV-155F008 cycles against a differential pressure of 400 PSI. The test data does not approximate maximum design differential pressures, however justification is provided as follows:

1)~ The torque switches are set correctly per design.

2) The only safety related function of the valve is to close, closure of

'his valve to at least 97% closed is guaranteed by a torque switch bypass.,

3) If the valve were to experience seat leakage resulting from incomplete closure the leakage would be contained further downstream by another isolation valve, therefore operability of the HPCI system would not be affected.

ANOMALIES:

DISCUSSION:

The difference between the original design normal torque switch setting (2-1/2) and that determined as a result of the design basis review (3) is due to a more conservative differential pressure being used in the design review. The valve was originally specified as experiencing a maximum differential pressure of 1250 PSID whereas the valve design review concluded the valve could be called upon to actuate against a differential pressure of 1342 PSID.

As-found operability in the closing direction was indeterminant due to the incorrect spring pac being installed..

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155F012 VALVE SIZE: '" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Lire.:torque MOTOR SIZE: 15 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Minimum Flow Bypass Y

DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1367 CLOSING: 1367 DISCUSSION:

Valve will open automatically when pump discharge pressure exceeds 125 PSIG and discharge flow is less than 500 GPM. Valve will close when either turbine steam isolation valve closes or when the pump discharge exceeds 1000 GPM. Normal closing is based on pump discharge pressure at 1000 GPM. Abnormal opening is based on pump shut-off head.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155 F012 RE VIREO SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0022-1 NORMAL TORQUE SWITCH SETTING: 1-1/4 CORRESPONDING OUTPUT TORQUE: 105(Ft-Lb)

MAX. TORQUE SWITCH SETTING: 1-3/4 CORRESPONDING OUTPUT TORQUE: 165(Ft-Lb)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

.OPENING: 5285 (Lbs) OPENING: 87 (Ft-Lbs) OPENING: N/A CLOSING: 8333 '(Lbs) CLOSING: 136 (Ft-Lbs) CLOSING: 1-'3/4 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155 F012 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 1-3/4 AS-LEFT: 1-3/4 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified LIMIT SWITCHES:

'PEN DIRECTION:

T.S. BYPASS: AS>>FOUND: N/A AS LEFT: 'N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S'. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

Spring pac verification was deemed unnecessary since this valve closes against differential pressure during HPCI surveillance testing. Stroking against differential pressure will verify valve operability.

~ % ~

AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155 F012 TESTING:

DISCUSSION:

The valve. was electrically stroked post-maintenance under static conditions to verify operability and correct limit switch settings.

Operability against maximum differential pressure is justified by HPCI quarterly flow test when the valve closes against HPCI pump discharge

, pressure. Data obtained from an instrumented test on Unit I showed that HV-155F012 closed against a differential pressure of 400 PSI during the HPCI test. The test data does not approximate maximum design differential pressure, however justification is provided as follows:

I) The torque switch is set per des'ign.

2) The torque switch is not in the opening circuit.

3) 'n the closing direction the torque switch is bypassed 97% to guarantee closure of the valve to at least 97K closed.

4) If the valve were to experience seat leakage resulting from incomplete closure the leakage would be minimized by the three knockdown orifice plates upstream of the valve as well as the fact that the valve will be more than 97K closed.

ANOMALIES:

The difference between the original design normal torque switch setting (1-1/4) and that determined necessary as a result of the design review (1-3/4) is due to a more conservative differential pressure being used in the design review. The valve was originally specified as experiencing a maximum differential pressure of 1250 PSID where as the valve design review concluded the valve could be called upon to actuate against differential pressures up to 1367 PSID.

ka/ms1066cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155F042 VALVE SIZE: 16" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 7-1/2 FT-LBS MOTOR SPEED'900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Suppression Pool Suction Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 44 CLOSING: 29 DISCUSSION:

This valve is normally closed. Normal opening and closing are based on the difference between suppression pool pressure and atmosphere. Abnormal opening is based on 0 PSIA on pump side.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155F042 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0021-1 NORMAL TORQUE SWITCH SETTING: 1-3/4 CORRESPONDING OUTPUT TORQUE: 71 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-1/4 CORRESPONDING OUTPUT TORQUE: 108(Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 5491 (Lbs) OPENING: 82 (Ft-Lbs) OPENING: N/A CLOSING: .,4205 (Lbs) CLOSING: 63 (Ft-Lbs) CLOSING: 1-3/4 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155F042 VERIFICATION OF SWITCH SETTINGS TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-1/4 AS-LEFT: 2-1/4 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS- FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 96K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 96K Closed AS LEFT: 97% Closed DISCUSSION:

Design spring pac was a 60-600-0021-1 with a normal closed setting of 1-3/4 for 71 ft-lbs torque output. As-found was a 60-600-0021-1 with a torque switch setting of 2-1/4 for a torque output of 83 ft-lbs. As-left spring pac was a 60-600-0048-1 with a torque switch setting of 2-1/4 for 111 ft-lbs. Installation of this spring pac was approved via an RIEE.

AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155 F042 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and acceptability of limit switch settings. Since the valve maximum design basis differential pressure is very small (44 PSID Opening, 29 PSID Closing) a statis stroke is sufficient to verify operability of the valve.

Most of the thrust required to actuate the valve is necessary to overcome running loads (i.e. stuffing box friction) while little thrust is required to overcome pressure loads.

ANOMALIES:

There were no anomalies associated with this valve.

ka/ms1066cc(032)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-155F066 VALVE SIZE: 20" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling

'CT.

ACTUATOR TYPE: SMB ACTUATOR SIZE: 0 MANUFACT.: Limitorque MOTOR SIZE: 10 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Turbine Exhaust Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 0 CLOSING: 0 DISCUSSION:

This valve is locked open. It is interlocked with the turbine steam supply valve such that it opens before the steam supply valve opens and closes after the steam supply valve closes. Thus, there will never be flow in the line when the valve actuates and hence no differential pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155 F066 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER'0-600-0004-1 NORMAL TORQUE SWITCH SETTING: 3-1/4 CORRESPONDING OUTPUT TORQUE: 110 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 5 CORRESPONDING OUTPUT TORQUE: 180 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SE'TING:

OPENING: 2855 (Lbs) OPENING: 45 (Ft-Lbs) OPENING: N/A CLOSING: 2500 (Lbs) CLOSING: 39 (Ft-Lbs) CLOSING: 3-1/4 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97". Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97%

open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155 F066 VERIFICATION OF SWITCH SETTINGS TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 4-1/2 AS-LEFT: 4-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Open AS LEFT: 97K Open DISCUSSION:

Spring pac verification was deemed unnecessary since the valve will be stroked against its maximum design basis differential pressure to verify operability.

AS-FOUND OPERABILITY:

The valve assembly was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-155 F066 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability against design basis differential pressures and also verify acceptability of limit switch settings.

ANOMALIES:

0 DISCUSSION:

There were no anomalies associated with this valve.

ka/ms1066cc(32)

PAGE I OF 4 VALVE

SUMMARY

SHEET HV-155 F075 VALVE SIZE: 3" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 2 FT-LBS MOTOR SPEED'900 RPM VALVE FUNCTIONAL DESCRIPTION: Outboard Turbine Exhaust Vacuum Breaker Isolation DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 50 CLOSING: 44 DISCUSSION:

This valve is normally in its correct position which is open. Valve automatically closes on low HPCI steam supply pressure coincident with high drywell pressure. Abnormal opening is based on recovery from inadvertant closing during turbine operation at maximum discharge pressure. Abnormal closing is based on maximum suppression pool pressure and 0 PSIA in the steam line.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET H V-155F075 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0023-1 (Old Style)

NORMAL TORQUE SWITCH SETTING: 1 CORRESPONDING OUTPUT TORQUE: 10 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 30 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 1118 (lbs) OPENING: 15 (Ft-Lbs) OPENING: 1-1/2 CLOSING: 1106 (Lbs) CLOSING: 15 (Ft<<Lbs) ~

CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: 97K Closed TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it is bypassed the first 975 of travel to insure that the valve will close at least 97K when a close signal is received. In the opening direction the torque switch is bypassed the first 3X of travel such that the actuator does not trip due to hammberblow and disc pullout loads. The full open limit switch will trip the actuator at 97K full open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV~155F075 VERIFICATION OF SWITCH SETTINGS:

TOR(UE SWITCH:

OPEN DIRECTION: AS-FOUND: 1-1/2 AS LEFT: 1 CLOSE DIRECTION: AS-FOUND: 1-1/2 AS-LEFT: 1 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: 94K Closed AS LEFT: 97K Closed FULL OPEN LIMIT: AS-FOUND: 94K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 94K Closed AS LEFT: 97K Closed DISCUSSION:

Design spring pac was an old style 60-600-0023-1 with an open and close torque switch setting of 1-1/2 for 20 ft-lbs torque output. As-found spring pac was a new style of 60-600-0023-1 with an open and close torque switch setting of 1-1/2 for an output torque of 30 ft-lbs. As-left spring pac was a new style 60-600-0023-1 with an open and close torque switch setting of 1 for an output torque of 20 ft-lbs.

AS- FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET'V-.155F075 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance under static conditions to verify operability and acceptability of limit switch settings. Since the thrust required to overcome the differential pressure is small (4100 lbs), a static stroke is sufficient to verify operability of the valve. Most of the thrust is required to overcome running loads such as stuffing box friction which would be present even during a static stroke.

ANOMALIES:

DISCUSSION:

The difference between the original design normal torque switch setting (1) and that determined as a result of the design review (l-l/2) is a result of the actuator manufacturer using the wrong stem factor in original actuator sizing calculations.

ka/msl066cc(32)

PAGE I OF 4 VALVE

SUMMARY

SHEET HV-155 F079 VALVE SIZE: 3" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 2 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Inboard Turbine Exhaust Vacuum Breaker Isolation DESIGN: BA'S IS DIFFERENTIAL PRESSURE (PSID):

'AXIMUM OPENING: 29 CLOSING: 44 DISCUSSION:

Valve is normally open which is the correct position for normal operation.

Valve automatically closes on low HPCI steam supply pressure coincident with high drywell pressure. Abnormal opening is based on maximum suppression pool pressure. Abnormal closing is based on maximum suppression pool pressure and 0 PSIA in the steam line.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-155F079 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0023-1 (Old Style)

NORMAL TORQUE SWITCH SETTING: 1 CORRESPONDING OUTPUT TORQUE: 10 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 30 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

'OPENING: 1089 (Lbs) .OPENING: 15 (Ft-L'bs) OPENING: 1-1/2 CLOSING: 1106 . (Lbs) CLOSING: 15. (Ft-Lbs) CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION'ORQUE TORQUE SWITCH BYPASS: 97K Closed SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it is bypassed the first 97% of travel to insure that the valve will close at least 97K when a close signal is received. In the opening direction the torque switch is bypassed the first 3X of travel such that the actuator does not trip due to hammerblow and disc pullout loads. The full open limit switch will trip the actuator at 97% full open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-155F079 VERIFICATION OF SWITCH SETTINGS TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: 1 AS LEFT: 1 CLOSE DIRECTION: AS-FOUND: 1 AS-LEFT: 1 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion L IMIT, SWITCHES.'PEN DIRECTION:

T.S. BYPASS: AS-FOUND: 94$ Closed AS LEFT: 97% Closed FULL OPEN 'LIMIT: AS.-FOUND: 94K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 94K Closed AS LEFT: 97K Closed DISCUSSION:

Design spring pac was an old style 60-600-0023-1 with a required open and close torque switch of 1-1/2 for a torque output of 20 ft-lbs. As-found spring pac was a 60-600-0060-1 with torque switch settings of 1 for a torque output of 10 ft-lbs. As-left spring pac was a new style 60-600-0023-1 with torque switch settings of 1 for a torque output of 22 ft-lbs.

AS-FOUND OPERABILITY:

The valve would probably not have opened against full design basis differential pressure due to the low open torque switch setting.

The valve would have closed at least 94K due to the torque switch bypass but it is uncertain if the valve would have continued to close to 100%

closed because of the low close torque switch setting.

PAGE 4 OF 4 VALVE.

SUMMARY

SHEET HV-155F079 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance under static conditions to verify operability and acceptability of limit switch settings. Since the thrust required to overcome the differential pressure is small ( ~100 lbs), a static stroke is sufficient to verify operability of the valve. Most of the thrust. is required to overcome running loads such as stuffing box friction which would be present even during a static stroke.

ANOMALIES:

DISCUSSION:

.The differ'ence between the original design normal torque swtich setting (I) and that determined as a result of the design review (1-1/2) is a result of the actuator manufacturer using the wrong stem factor in original actuator sizing calculations. This resulted in indeterminant operability of the valve in the as-found condition.

ka/ms1066cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET F V-156F059 VALVE SIZE: 2" VALVE TYPE: Globe VALVE MANUFACT.: Yarway ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limi torque MOTOR SIZE: 2 FT-LBS MOTOR SPEED'900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Lube Oil Cooling Water Supply Valve DESIGN BA'SIS'AXIMUM DIFFERENTIAL PRESSURE (PS ID):

OPENING: 335 CLOSING: 0 DISCUSSION:

This valve receives an open signal on a HPCI system initiation signal.

The valve is manually closed after HPCI system shutdown. Abnormal opening is based on recovery from inadvertant closure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET FV-156F059 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0024-1 NORMAL TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 80 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 80 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D 1.S. SETTING:

OPENING: 1708 (Lbs) OPENING: 22 (Ft-Lbs) ~

OPENING: N/A CLOSING: 1000 (Lbs) CLOSING: 13 (Ft-Lbs) CLOSING' REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET FV-156F059 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: 'AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: I AS-LEFT: 2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS- FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 90% Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 93K Open AS LEFT: 97K Open DISCUSSION:

Verification of spring pac was deemed unnecessary since the valve will be stroke tested closed against maximum design basis differential pressures.

As-found close torque swtich setting was set below nameplate minimum however even at this setting the torque output (50 ft-lbs) exceeded the torque required.

AS-FOUND OPERABILITY:

The valve assembly was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET FV-156F059 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability against maximum design basis differential pressure in the closing direction and also to verify acceptable limit switch settings.

Operability, in the opening direction, against design basis differential pressure is justified by the fact that the torque switch is not in the opening circuit. Therefore an incorrect torque switch setting cannot prevent the valve from opening.

ANOMALIES:

DISCUSSION:

The only anomaly associated with this valve was an as-found torque switch setting lower than nameplate minimum however this did not adversely affec valve operability.

ka/msl066cc(32)

PAGE I OF 4 VALVE

SUMMARY

SHEET

\

HV-249F007 VALVE SIZE: 4" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limi torque MOTOR SIZE: 7-1/2 FT-LBS MOTOR SPEED: 1700 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Inboard Steam Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 0 CLOSING: 1157 DISCUSSION:

This valve is normally maintained in the open position so no normal operation is required. Abnormal conditions include closing against full reactor pressure after a steam line break is detected by the Area Leak Detection System. Abnormal opening is for recovery after an inadvertent closure. Pressure would first be equalized across the valve by opening the bypass valve.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-249F007 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0022-1 NORMAL TORQUE SWITCH SETTING: 1-3/8 CORRESPONDING OUTPUT TORQUE: 105 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2-3/4 CORRESPONDING OUTPUT TORQUE: 236 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: . REQ'D T.S. SETTING:

OPENING: 94 (Lbs) OPENING: 113 (Ft-Lbs) OPENING: N/A CLOSING: 6877 (Lbs) CLOSING: 113 (Ft-Lbs) CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION CLOSING DIRECTION'ORQUE SWITCH BYPASS: N/A

'ORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypass the first 97K of travel to insure that the valve will close at least 97K in the event of a steam line break. The opening direction travel is governed solely by a full open switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-249F007 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-POUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-3/4 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPAS S: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97X Open AS LEFT: 97X Open CLOSE DIRECTION:

T.ST BYPASS: AS-FOUND: 97X Closed AS LEFT: 97X Closed DISCUSSION:

Design spring pac was a 60-600-0022-1 with a corresponding setting of l-l/2 for 120 ft-lbs output torque. As-found spring pac was a 60-600-0048-1 set at 2-3/4 for 130 ft-lbs output torque. As-left spring pac was a 60-600-0049-1 with a setting of 1-1/2 for 130 ft-lbs output torque.

AS-FOUND OPERABILITY:

The valve/actuator was determined to be operable in the as-found condition via an as-found MOVATs.

VALVE

SUMMARY

SHEET HV-249F007 TESTING:

DISCUSSION:

The valve assembly underwent a post-maintenance static stroke to verify operability and correct limit switch settings. Maximum design basis operability is based on similarity to HV-149F007.

ANOMALIES:

DISCUSSION:

~

The only discrepancy identified was between the original normal torque switch setting (1-3/8) and the required normal torque switch setting (1-1/2f determined as a result of the valve design review. It has been determ>ned that the inadequate original design setting was a result of the valve vendor using the incorrect differential pressure in the actuator sizing calculation.

ka/ms1023cc:(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-249F008 VALVE SIZE: 4" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 10 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Outboard Steam Isolation Valve DESIGN'ASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1157 CLOSING: 1157 DISCUSSION:

This valve is normally maintained in the open position so no normal operation is required. If HV-249FOOB were inadvertantly closed, HV-249F007 would also have to be closed before either valve could be re-opened. With both valves closed, HV-249F008 would be re-opened to allow moisture in the line to drain. Abnormal closing is based on isolation against full reactor pressure after detection of a steam line break.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-249F008 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0022-1 NORMAL TORQUE SWITCH SETTING: 1-1/4 CORRESPONDING OUTPUT TORQUE: 105 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2-1/8 CORRESPONDING OUTPUT TORQUE: 186 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: < 6877 (Lbs) OPENING: 4113 (Ft-Lbs) OPENING: N/A CLOSING: 6877 (Lbs) CLOSING: 113 (Ft-Lbs) CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97% Oven DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the'alve will close at least 97K in the event of a steam line break. The opening direction travel is governed solely by a full open limit switch set at 97%

open.

- VALVE

SUMMARY

SHEET PAGE 3 OF 4 HV-249F008 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2 AS-LEFT: 2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97% Open AS LEFT: 97% Open DIRECTION:

'LOSE T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

Design spring pack was a 60-600-0022-1 with a corresponding setting of l-l/2 for a torque output of 120 ft-lbs. As found spring pac was a 60-600-0048-1 with a setting of 2 for 100 ft-lbs output torque. The as-left spring pac was a 60-600-0049-1 with a setting of 2 for 148 ft-lbs output torque.

AS-FOUND OPERABILITY:

The as-found operability of the valve in the closing direction was indeterminant. The valve would have closed at least 97% due to the torque switch bypass hcwever it is uncertain if the valve would have closed 100%

against maximum differential pressure due to the lower than required torque.

VALVE

SUMMARY

SHEET HV-249F008 TESTING:

DISCUSSION:

A static MOVAT's was performed on the valve in the as-left condition to verify operability and correct limit switch settings. The MOVATs verified.

that the limit switches were set correctly and that the thrust developed (7207 lbs) was sufficient to actuate the valve against maximum differential pressures. A static differential pressure test was performed on this valve in the opening direction in 1984. The valve opened successfully against a differential pressure of 1140 psi. Since the torque switch is not in the opening circuit the results of this test are still valid.

ANOMALIES:

DISCUSSION:

The discrepancy between the original normal torque switch setting and the required normal switch setting determined as a reult of the valve design review is due to the valve vendor using a differential pressure in the actuator sizing calculation which was less than specified in the purchase documents.

In the as-found condition, the valve may not have closed completely against maximum differential pressure due to the low torque switch setting.

ka/ms1023cc:(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-249F013 VALVE SIZE: 6" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 25 FT-LBS MOTOR SPEED'900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Injection Shut-Off DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1162 CLOSING: 1162 DISCUSSION:

This valve is automatically opened on RCIC system initiation signal provided the steam supply valves are at least off their seats. The differential pressure is based on full reactor backpressure on the valve before the RICI pump has developed speed. Normal closing (150 psid) is based on low reactor pressure and no pump pressure. Abnormal closing is based on full reactor backpressure and no pump pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-249F013 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER.'0-600-0022-1 NORMAL TORQUE SWITCH SETTING: 2-1/4 CORRESPONDING OUTPUT TORQUE: 196 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2-3/4 CORRESPONDING OUTPUT TORQUE: 236 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING:'014 (Lbs) OPENING: 150 (Ft-Lbs) OPENING: N/A CLOSING: '2820 (Lbs) , CLOSING: 240 (Ft-Lbs) CLOSING: 3 REQUIRED LIMIT SWITCH SETTINGS:

OPENING CLOSING DIRECTION:

DIRECTION'ORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT:,97KOpen DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypass the first 3X of travel to insure the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

The required torque switch setting of 3 exceeds the current maximum setting. 'he actuator nuclear thrust rating is 14,000 lbs.

PAGE 3.0F 4 VALVE

SUMMARY

SHEET HV-249F013 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-1/4 AS-LEFT: 3 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97% Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Open AS LEFT: 97K Open DISCUSSION:

As found close torque switch setting was too low.

AS-FOUND OPERABILITY:

The as-found operability of the valve in the closing direction was indeterminant. The valve would have begun to close due to the torque switch bypass, however it is uncertain if the valve would have closed 100K against maximum differential pressure due to possible lower than required torque.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-249F013 TESTING:

DISCUSSION:

A static MOVAT's was performed on the valve assembly in the as-left condition to verify operability and correct limit switch settings. The MOVAT's verified that the limit switches were set correctly and that the thrust developed (15,820 lbs) was sufficient to actuate the valve under maximum differential pressures.

A static differential pressure test was performed on this valve in the opening direction in 1984. The valve opened successfully against a differential pressure of 1350 psi. Since the torque switch is not in the opening circuit the results of this test are still valid.

ANOMALIES:

DISCUSSION:

The discrepancy between the origin'al normal torque switch setting and the setting determined necessary as a result of the valve design review is due to an apparent miscommunication between the valve vendor and the actuator manufacturer. The valve vendor calculated a required thrust of 14,350 lbs. while the actuator manufacturer based the actuator size on 11,083 lbs of thrust required. Consequently in the as-found condition the valve may not have closed completely against maximum differential pressure.

The actual as-left thrust developed exceeds the actuator nuclear rating.

This does not create any immediate concerns but could lead to eventual fatigue problems or excessive maintenance requirements. A decision whether to replace the actuator with the next larger size is under evaluation.

rmhmea102a

PAGE 1 OF 4 VALVE

SUMMARY

SHEET FV-249F019 VALVE SIZE:. 2" VALVE TYPE: Globe VALVE MANUFACT.: Yarway I

ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 15 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Minimum Flow Bypass to the Suppression Pool DESIGN'ASIS:

'I MAXIMUM DIFFERENTIAL PRESSURE (f SID):

OPENING: 1300 CLOSING: 1300 DISCUSSION:

Normal opening of this valve is at 125 PSID based on this valve receiving an automatic opening signal when the RCIC pump discharge pressure is 125 psig and discharge flow ( 75 gpm. Valve automatically closes when either steam shut-off valve closes or when pump discharge flow exceeds 150 gpm. Normal closing is based on pump head at 150 gpm flow. Abnormal opening is based on opening against pump shut-off head after an inadvertant closure of the valve.

PAGE 2 OF 4 VALVE -

SUMMARY

SHEET FV-249F019 RE VIREO SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0048-1 NORMAL TORQUE SWITCH SETTING: 1-1/4 CORRESPONDING OUTPUT TORQUE: 60 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 1-3/4 CORRESPONDING OUTPUT TORQUE: 88 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 3746 (Lbs) OPENING: 48 (Ft-Lbs) OPENING: N/A CLOSING: 3746 (Lbs) CLOSING: 48 (Ft-Lbs) CL'OS ING 1-1/4 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97% Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97% of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97% open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET FV-249F019 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS- FOUND: 1-1/4 AS-LEFT: 1-1/4 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified L IMIT 'SWITCHES: .

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97% Open AS LEFT: 97~ Open CLOSE DIRECTION'.S.

BYPASS: 'AS-FOUND: 97% Closed AS LEFT: 97K Closed

'ISCUSSION:

Since the valve closes against differential pressure during quarterly RCIC surveillance testing, spring pac verification was deemed unnecessary.

Stroking against differential pressure will verify valve operability.

AS-FOUND OPERABILITY:

The valve/actuator assembly was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET FV-249F019 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and acceptability of limit switch settings. Operability against maximum differential pressure is based on similarity to FV-149F019. Also a static differential pressure test was performed on this valve in the opening direction in 1984. The valve opened successfully against 1300 PSID.

Since the torque switch is not in the opening circuit the results of this test are still valid.

ANOMALIES:

DISCUSSION:

There were no anomolies experienced with this valve.

ka/msl023cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-249F031 VALVE SIZE: 6" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 2 FT-LBS MOTOR SPEED'900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Pump Suction From Suppression Pool Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PS ID):

OPENING: 44 CLOSING: 29 DISCUSSION:

Normal operation of this valve is conservatively based on the difference between suppression pool pressure and atmospheric pressure. Abnormal opening is based on 0 PSIA on the pump side.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-249 F031 RE UI RED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0023-1 (Ol d Style)

NORMAL TORQUE SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 21 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 4 CORRESPONDING OUTPUT TORQUE: 40 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: ' T.S. SETTING:

REQ OPENING: 2009 (Lbs) OPENING'. 23 (Ft-Lbs) OPENING: N/A CLOSING: 1750 (Lbs) CLOSING: 19 (Ft-Lbs) '- l/2

'LOSING:

REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97'X Open DISCUSSION:

The torque switch is in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammberblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97% open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-249F031 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND'/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 4-1/2 AS-LEFT; 4 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

I OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97% Open AS LEFT: 97K Open DISCUSSION:

As-found torque switch setting exceeded nameplate maximum.

AS-FOUND OPERABILITY:

The valve/actuator assembly was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-249F031 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenanc'e to verify operability and acceptability of limit switch settings. Since the valve maximum design basis differential pressure is very small (44 PSID Opening; 29 PSID Closing) a static stroke is sufficient to verify operability of the valve.

Host of the thrust required to actuate the valve is to overcome running loads such as stuffing box friction while very little thrust is required to overcome the pressure loads.

ANOMALIES:

DISCUSSION:

The only anomaly experienced was the as-found close torque switch being set above the nameplate maximum.

ka/ms1023cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-249F059 4

VALVE SIZE: 10" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 10 FT>>LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Turbine Exhaust Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 0 CLOSING: 0 DISCUSSION:

Operation is based on opening this valve prior to opening the steam inlet shut-off valve and closing this valve after the steam inlet shut-off valve. The valve is controlled by a key-lock switch and the key can only be removed with the valve in the open position.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-249F059 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0021-1 NORMAL TORQUE SWITCH SETTING: 1-1/4 CORRESPONDING OUTPUT TORQUE: 38 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING". 2-3/4 CORRESPONDING OUTPUT TORQUE: 98 (Ft-Lbs)

REQUIRED REQUIRED TORQUE: REQ'D T.S. SETTING:

THRUST'PENING:

1910 (Lbs) OPENING: 26 (Ft-Lbs) OPENING: N/A CLOSING: 1500 (Lbs) CLOSING: 20 (Ft-Lbs) . CLOSING:

1-1/4'EQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97> Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammer blow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-249F059 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 1-1/2 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND'/A AS LEFT'/A FULL OPEN LIMIT: AS-FOUND: 96% Open AS LEFT: 96K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 96K Open AS LEFT: 96K Open DISCUSSION:

Design Spring Pac is 60-600-0021-1 with a torque switch setting of 1-1/4.

Design required torque is 20 ft-lbs in the closing direction. Both as-found and as-left spring pac was a 60-600-0050-1 with a torque switch setting of 1-1/2 for 38 ft-lbs output torque.

AS-FOUND OPERABILITY:

The valve assembly was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-249F059 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance against maximum design basis differential pressure to verify operability and also to verify the acceptability of limit switch settings.

ANOMALIES:

DISCUSSION:

There were no anomalies experienced with this valve.

ka/ms1023cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

'SHEET HV-249F060 VALVE SIZE: 2" VALVE TYPE: Globe VALVE MANUFACT.: Yanvay ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 2 FT-LBS MOTOR SPEED: '900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Vacuum Pump Discharge Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 20 CLOSING: 20 DISCUSSION:

This valve is locked open so there is no normal operation. Abnormal operation is based on opening and closing the valve against maximum pump discharge head.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-249F060 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0024-1 NORMAL TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 80 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 80 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 1'000 (Lbs) OPENING: 14 (Ft-Lbs) OPENING: N/A CLOSING: 1042 (Lbs) CLOSING: 14 (Ft-Lbs) CLOSING: 2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97% Open FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammberblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-249F060 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION'S-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 1-1/2 AS-LEFT: 2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97%

Open'S CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Open LEFT: 97/ Open DISCUSSION:

As-found torque switch setting was 1-1/2 for an output torque of 76 ft-lbs. Verification of spring pac was not required since the design basis differential pressure for this valve is very small (20 PSID).

Static stroke test is sufficient to verify operability.

AS- FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-249F060 TESTING:

~

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and acceptability of limit switch settings. Since the valve design basis maximum differential pressure is very small (20 PSID) a static stroke is sufficient to verify operability of the valve. Most of the thrust is required to overcome running loads such as stuffing box loads while very little thrust is needed to overcome pressure loads. The running loads are present even during a static stroke.

ANOMALIES:

DISCUSSION:

The only anomoly experienced was an as-found torque switch setting at lower than nameplate minimum. This however, did not compromise as-found operability.

ka/msl023cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-249F062 VALVE SIZE: 2" VALVE TYPE: Gate VALVE MANUFACT.: Borg-Marner ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 5 FT-LBS MOTOR SPEED'900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Turbine Exhaust Outboard Vacuum Breaker DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID.):

OPENING: 11 CLOSING: 44 DISCUSSION:

Valve is normally open which is the correct position for normal opera'tion.

Abnormal opening after inadvertent closure is based on maximum turbine discharge pressure. Abnormal closing is based on maximum suppression pool pressure and assumes 0 PSIA in the steam line.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-249F062 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0023-1 (New Style)

NORMAL TORQUE SWITCH SETTING'-l/2 CORRESPONDING OUTPUT TORQUE: 30 (Ft-Lb)

MAX. TORQUE SWITCH SETTING: 3-1/2 CORRESPONDING OUTPUT TORQUE: 56 (Ft-Lb)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 1077 (Lbs) 'PENING: 15 (Ft-Lbs) OPENING: 1-1/2 CLOSING: 1056 (Lbs) CLOSING: 15 (Ft-Lbs) CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: 97M Closed TORQUE SWITCH BYPASS: 97'4 FULL OPEN LIMIT: 97K Open Closed'ISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it, is bypassed the first 97K of travel to insure that the valve will close at least 97K when a close signal is received. In the opening direction the torque swit"h is bypassed the first 3% of travel so the actuator does not trip due to hammerblow and disc pullout loads. The full open limit switch will trip the actuator at 97K of full open.

0

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-249F062 VERIFICATION OF SWITCH SiTTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: 1-3/4 AS LEFT: 1-3/4 CLOSE DIRECTION: AS-FOUND: 1 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed FULL OPEN LIMIT: AS-FOUND: 975 Open AS LEFT: 97% Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97M Closed AS LEFT: 97K Closed DISCUSSION:

Design spring pac is a new style 60-600-0023-1. Torque required to actuate valve is 15 ft-lbs. As found spring pac was an old style 60-600-0023-1 with an open torque with setting of 1-3/4 (22 ft-lbs) and a closed setting of 1 ( 16 Ft-lbs ). As-left spring pac was an old style spring pac with an open torque switch setting of 1-3/4 and a closed setting of 1-1/2 (20 ft-lbs).

AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-249F062 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and acceptability of limit switch settings. Since the thrust required to overcome the differential pressure is very small (~ 100 lbs), a static stroke is sufficient to verify operability of the valve. Most of the thrust is required to overcome running loads such as stuffing box friction. These loads are present even during a static stroke.

ANOMALIES: .

The as found switch setting were below nameplate specified. Also the as-found spring pac was not correct. Nei.ther of these caused an operability concern on this valve.

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-249F084 VALVE SIZE: 2" VALVE TYPE: Gate VALVE MANUFACT.: Bor g-Marner ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 5 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Turbine Exhaust Inboard Vacuum Breaker DESIGN BASIS':

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 29 CLOSING: 44 DISCUSSION:

Valve is normally open which is the correct position for normal operation.

Abnormal opening after inadvertant closure is based on maximum suppression pool pressure. Abnormal closing is based on maximum suppression pool pressure combined with 0 PSIA in the steam line.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-249F084 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0023-1 (New Style)

NORMAL TORQUE SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 30 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-1/2 CORRESPONDING OUTPUT TORQUE: 56 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ T.S. SETTING OPENING: 1125 (Lbs) OPENING: 16 (Ft-Lbs) OPENING: 1-1/2 CL'OSING: 1056 (Lbs) CLOSING'. 16 (Ft-Lbs) CLOSING: 1-.1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: 97K Closed TORQUE SWITCH BYPASS: 97% Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97% when a close signal is received. In the opening direction the torque switch is bypassed the first 3X of travel so the actuator does not trip due to hammerblow and disc pullout loads. The full open limit switch will trip the actuator at 97K of full open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-249F084 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: 2 AS LEFT: 1-1/2 CLOSE DIRECTION: AS-FOUND: 1-1/2 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97% Closed FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

None AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-249F084 TESTING:

OISCUSS ION:

The valve was electrically stroked post-maintenance to verify operability and proper limit switch settings. It was verified that all limit switches were set properly.

Operability of the valve under design basis operating conditions is justified by similarity to HV-149F062.

ANOMALIES:

There were no anomalies identified.

ka/ms1023cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-255 F001 VALVE SIZE'0" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 1 ACT. MANUFACT.: Limitorque MOTOR SIZE: 60 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Turbine Steam Supply Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL'RESSURE 'PS ID):

OPENING: 1157 CLOSING: 1157 DISCUSSION:

This valve is normally maintained in the closed position. Opening is based on full reactor pressure upstream and atmospheric pressure in the-turbine. Closing is based on full reactor pressure upstream and atmospheric pressure downstream after system test.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-255F001 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0007-1 NORMAL TORQUE SWITCH SETTING: 3-1/2 CORRESPONDING OUTPUT TORQUE: 800 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 850 (Ft-Lbs)

REQUIRED THRUST: REQUIRED .TORQUE: REQ'D T.S. SETTING:

OPENING: 19,536 (Lbs) OPENING: 504 (Ft-Lbs) OPENING: N/A CLOSING: 26,711 (Lbs) CLOSING:. 690 (Ft-Lbs) CLOSING: 3'-'1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97'X Open FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255F001 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A

~

CLOSE DIRECTION: AS-FOUND: 3-'I/2 AS-LEFT: 3-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not verified LIMIT SWITCHES OPEN DIRECTION:

T.S. BYPASS: AS.-FOUND: N/A AS LEFT: N/A .

FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97% Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Open AS LEFT: 97K Open DISCUSSION:

Spring pac verification was not required since this valve strokes at or near maximum differential pressure during quarterly HPCI surveillance testing.

AS-FOUND OPERABILITY:

The valve assembly was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F001 TESTING:

DISCUSSION:

The valve was electrically stroked to verify operability and acceptability of limit switch settings. Operability against maximum differential pressure is justified by HPCI quarterly flow testing when the valve actuates against full reactor pressure. See discussion on Valve Summary Sheet for HV-155F001 for details.

ANOMALIES:

There are no anomalies associated with this valve.

ka/ms1066cc:(32)

PAGE I OF 4 VALVE

SUMMARY

SHEET HV-255F002 VALVE SIZE: 10" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: I ACT. MANUFACT.: Limitorque .

MOTOR SIZE: 40 FT-LBS MOTOR SPEED'735 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Steam Supply Inboard Isolation Valve DESIGN BASIS:

r MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 0 CLOSING: 1157 DISCUSSION:

This valve is normally maintained open so no normal operation is required.

If HV-255F002 were inadvertantly closed, HV-255F003 would also have to be closed before either valve was re-opened. With both valves closed, the outboard valve (F003) is opened to allow moisture in the line to drain.

Line pressure across HV-255F002 is equalized by opening HV-255F100 (bypass valve). This will allow the line to warm up slowly. Once the line is swarmed up F002 is re-opened. Valve closing is based on isolation of a steam line break with the reactor at full pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-255F002 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0007-1 NORMAL TORQUE SWITCH SETTING: 2-1/2 CORRESPONDING OUTPUT TORQUE: 516 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 850 (Ft-Lbs)

REQUIRED THRUST: , REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: ~Q (Lbs) OPENING: 0 (Ft-Lbs) OPENING: N/A CLOSING: 28,718 (Lbs) CLOSING: 583. (Ft-Lbs) CLOSING: 3 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97% Closed FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255F002 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 3 AS-LEFT: 3 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: 'AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97% Closed AS LEFT: 97K Closed DISCUSSION:

None AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F002 TESTING:

DISCUSSION:

A static MOVAT's was performed post-maintenance to verify the adequacy of both limit switch settings and developed thrust. All limit switches were verified to be properly set and the thrust developed (36,602 lbs) exceeded the thrust required to actuate the valve under design basis conditions (28,718 lbs). This Justifies concluded operability under design basis conditions.

ANOMALIES:

The only discrepancy identified was between the original normal specified torque switch setting (2-1/2) and the required normal torque switch setting (3) determined as a result of the valve design review. It has been determined that the inadequate original design setting was the result of the valve vendor using an incorrect differential pressure in the actuator sizing calculation.

rmhmea102a

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-255F003 VALVE SIZE: 10" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling Limitorque

'OTOR ACTUATOR TYPE: SMB ACTUATOR SIZE: 1 ACT. MANUFACT.:

MOTOR SIZE: 40 FT-LBS SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Steam Supply Outboard Isolation DESIGN BASIS:

MAXIMUM DIFFERENTIAL. PRESSURE (PS ID):

OPENING: 1157 CLOSING: 1157 DISCUSSION:

This valve is normally maintained open so no normal operation is require'd.

Opening is based on recovery after an inadvertant closure during a HPCI injection. Closing is based on a steam line break at full reactor pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-255F003 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0007-1 NORMAL TORQUE SWITCH SETTING: 2-1/2 CORRESPONDING OUTPUT TORQUE: 516 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 850 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: (28,718 (Lbs) .OPENING: < 583(Ft-Lbs) OPENING: N/A CLOSING: . 28,718 (Lbs) CLOSING: 583 (Ft-Lbs) CLOSING: 3 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255FO03 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 3 AS-LEFT' CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT'/A FULL OPEN LIMIT: AS-FOUND: 97% Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

None AS-FOUND OPERABILITY The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F003 0

TESTING:

DISCUSSION:

A static MOVAT's was performed post-maintenance to verify the adequacy of both the limit switch settings and the developed thrust. All limit switches were noted as being properly set and the actual thrust developed (42,823 lbs) exceeded that required to actuate the valve under maximum design basis conditions (28,718 lbs). It is on this basis that operability under design basis conditions is concluded.

ANOMALIES:

DISCUSSION:

The only discrepency identified was between original normal specified torque switch setting (2-1/2) and the required normal torque switch setting (3) determined as a result of the valve design review. It has been determined that the inadequate original design setting was the result of the valve vendor using an incorrect differential pressure in the actuator sizing calculation.

rmhmea102a

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-255F004 VALVE SIZE: 16" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Lim'torque MOTOR SIZE: 7-1/2 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: Condensate Storage Tank Suction Isolation Valve DESIGN BASIS:

1 MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 40 CLOSING: 40 DISCUSSION:

Even though this valve is normally open, it will receive an automatic opening signal on a HPCI initiation signal provided HV-255F042 (suppression pool suction valve) is not open. If HV-255F042 is open, HV-255F004 will receive an automatic close signal. Both opening and closing are based on actuating against CST static head.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV'-255F004 RE UI RED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0021-1 NORMAL TORQUE SWITCH SETTING: 1-3/4 CORRESPONDING OUTPUT TORQUE: 71 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-1/4 CORRESPONDING OUTPUT TORQUE: 108 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 4765 (Lbs) OPENING: 71 (Ft-Lbs) OPENING: N/A CLOSING: 4851 (Lbs) CLOSING: 72 '(Ft-Lbs). CLOSING: 2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97'4 Closed FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve solely will close at least 97K. The opening direction travel is governed by a full open limit switch set at 97% open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255F004 VERIFICATION OF SWITCH SETTINGS:

TOR(UE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2 AS-LEFT: 2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97% Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

None AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F004 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance under static conditions to verify operability and acceptability of limit switch settings. Since the valve maximum design basis differential pressure is very small (40 PSID) a static stroke test is sufficient to verify operability of the valve.

ANOMALIES:

DISCUSSION:

One discrepancy identified was between the original normal specified torque switch setting (1-3/4) and that calculated as a result of the valve design review (2). This discrepancy is due to an apparent miscommunication between the valve vendor and the actuator manufacturer.

The valve vendor calculated a required thrust of 6614 lbs while the actuator manufacturer based the torque switch settings on a required thrust of 4728 Lbs..

ka/ms1066cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-255F006 VALVE SIZE: 14" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SB ACTUATOR SIZE: 3 ACT. MANUFACT.: Limitorque MOTOR'SIZE: 150 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Injection Shut-Off Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1162 CLOSING: 1162 DISCUSSION:

Valve automatically opens on HPCI system initiation signal provided the turbine steam isolation valve (HV-255F001) and the turbine steam inlet valve are open or in the opening process. Thus, the valve will open against'ull reactor pressure on the downstream side since the HPCI pump would not be up to speed. Abnormal closing is based on full reactor pressure and no pump discharge pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-255F006 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0011-1 NORMAL TORQUE SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 1374 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 3190 (Ft-Lbs)

U REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 33,351 (lbs) OPENING: 937 (Ft-Lbs) OPENING: N/A CLOSING: 42,299 (Lbs) CLOSING: 1189 (Ft-Lbs) CLOSING: 1.-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97% Closed FULL OPEN LIMIT: 97'X Open D'ISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97% of travel to insure that the valve will close at least 97%. The opening direction travel is governed solely by a full open limit switch set at 97% open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255F006 I

VERIFICATION OF SWITCH SETTINGS:

TOR(UE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-1/2 AS-LEFT: 2-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 974 Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97% Closed AS LEFT: 97K Closed DISCUSSION:

Verification of the installed spring pac was not performed. However, other actuators carrying the same Limitorque order/item number were shipped with 60-600-0078-1 spring pacs (i.e. HV255F007). There is no record of the spring pac ever being replaced therefore it is concluded that the installed spring pac is a 60-600-0078-1 with a torque switch setting of 2-1/2 for a torque output of 1400 ft-lbs..

AS-FOUND OPERABILITY:

The valve has concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F006 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance under static conditions to verify operability and correct limit switch settings.

Design basis operability is justified based on similarity to HV-255F007.

ANOMALIES:

DISCUSSION:

There were no anomalies associated with this valve.

ka/ms1066cc(32)

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-255F007 VALVE SIZE: 14" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SB ACTUATOR SIZE: 3 ACT. MANUFACT.: Limitorque MOTOR SIZE: 150 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Pump Discharge Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 205 CLOSING: 1162 DISCUSSION:

This valve is normally open. Opening is based on HPCI pump running on minimum bypass and HV-255F006 open. Closing is based on reverse pressure from the reactor at full pressure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-255F007 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0011-1 NORMAL TORQUE SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 1374 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-3/4 CORRESPONDING OUTPUT TORQUE: 3190 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 4250 (Lbs) OPENING: 119 (Ft-Lbs) OPENING: N/A CLOSING: 42299 (Lbs) .CLOSING: 1189 (Ft-Lbs) CLOSING: '-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97% Open FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255F007 VERIFICATION OF SWITCH SETTINGS:

TOR(UE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2-1/2 AS-LEFT: 2-1/2

- CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES'PEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT.: AS-FOUND: 88K, Open AS LEFT: 88K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 87K Open AS LEFT: 87% Open DISCUSSION:

Design spting pac is a 60-600-0011-1 with a normal torque switch setting of 2-1/2 for an output torque of 1374 ft-lbs. As-found was a 60-600-0078-1 spring pac with a torque switch setting of 2-1/2 for an output torque of 1400 ft-lbs. As-left spring pac was a 60-600-0078-1 with a torque switch setting of 2-1/2 for an output torque of 1400 A-lbs, AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET, HV-255F007 TESTING:

DISCUSSION:

A static MOVAT's was performed post-maintenance to verify the adequacy of both the limit switch settings and the developed thrust. The limit switch settings were shown to be set overly conservative however the settings were concluded acceptable. The total thrust developed was 78,143 lbs as compared to a required thrust of 42,299 lbs. It is upon this basis that operability against design basis conditions is justified.

ANOMALIES:

DISCUSSION:

There were no anomalies associated with. this valve.

ka/msl066cc(32)

PAGE I OF 4 VALVE

SUMMARY

SHEET HV-255F008 VALVE SIZE: 10" VALVE TYPE: Globe VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 3 ACT. MANUFACT.: Limitorque MOTOR SIZE: 80 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Full Flow Test Valve to Condensate Storage Tank DESIGN 'BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1342 CLOSING: 1342 DISCUSSION:

This valve automatically closes on HPCI initiation signal. Opening and closing is based on maximum pump head at minimum flow.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-255FOOB RE VIREO SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0011-1 NORMAL TORQUE SWITCH SETTING: 2-1/4 CORRESPONDING OUTPUT TORQUE: 1844 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3 CORRESPONDING OUTPUT TORQUE: 2560 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING:. ~ 0 (Lbs)* OPENING: ~ 0 (Ft-Lbs) OPENING: 2-1 /2 CLOSING: 88,754 (Lbs) CLOSING: 2,024 (Ft-Lbs) CLOS I NG: 2-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: 97K Closed TORQUE SWITCH BYPASS: 97% Closed FULL OPEN LIMIT: 97% Open DISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97'A when a close signal is received. In the opening direction the torque switch is bypassed the first 3X of travel such that the actuator does not trip due to hammberblow and disc pullout loads. The full open limit switch will trip the actuator at 97K full open.

• The higher pressure is below the valve disc at maximum differential conditions and will act to open the valve.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255FO08 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: 3-1/4 AS LEFT: 3-1/4 CLOSE DIRECTION: AS-FOUND: 3-1/4 AS-LEFT: 3-1/4 CORRECT. SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified LIMIT SWITCHES:

OPEN DIRECTION'.S.

BYPASS: AS-FOUND: 97% Closed AS LEFT". 97% Closed FULL OPEN'LIMIT: AS-FOUND: 974 Open AS LEFT: 97% Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

Spring pac verification not required since this valve strokes against differential pressure during quarterly HPCI flow test.

As-found torque switch setting exceeded design maximum setting, however this did not affect operability.

AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F008 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and correct switch settings. Operability against. maximum differential pressure is justified by quarterly HPCI flow test. See Valve Summary Sheet for HV-155F008 for discussion.

ANOMALIES:.

DISCUSSION:

The difference between the original design normal torque switch setting (2-1/2) and that determined as a result of the design basis review (3) is due to a more conservative differential pressure being used in the design review. The valve was originally specified as experiencing a maximum differential pressure of 1250 PSID whereas the valve design review concluded the valve could be called upon to actuate against a differential pressure of 1342 PSID.

The as-left torque switch settings exceeded the design maximum settings, however this was concluded not to be a concern.

ka/ms1066cc(32)

PAGE 1 OF 4

. VALVE

SUMMARY

SHEET HV-255F012 VALVE SIZE: 4" VALVE TYPE Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 15 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Minimum Flow Bypass DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 1367 CLOSING: 1367 DISCUSSION:

Valve will open automatically when pump discharge pressure exceeds 125 PSIG and discharge flow is less than 500 GPM. Valve will close when either turbine steam isolation valve closes or when the pump discharge exceeds 1000 GPM. Normal closing is based on pump discharge pressure at 1000 GPM. Abnormal opening is based on pump shut-off head.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-255F012 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0022-1 NORMAL TORQUE SWITCH SETTING: 1-1/4 CORRESPONDING OUTPUT TORQUE: 105(Ft-Lb)

MAX. TORQUE SWITCH SETTING: 1-3/4 CORRESPONDING OUTPUT TORQUE: 164(Ft-Lb)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 5071 (Lbs) OPENING: 83 ( Ft-Lbs ) OPENING: N/A CLOSING: 8333 (Lbs) CLOSING: 136. (Ft-Lbs) CLOS ING:. 1-3/4 REQUIRED LIMIT SWITCH SETTINGS:

OPENING CLOSING DIRECTION:

DIRECTION'ORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255F012 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 1-1'/4 AS-LEFT: 1-3/4 (See Discussion)

CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED):. Yes LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS<<FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97% Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed- AS LEFT: 97K Closed DISCUSSION:

Spring pac verification was deemed optional since this valve closes against differential pressure during HPCI surveillance testing. Stroking against differential pressure will verify valve operability. The close torque switch setting was originally left at 1-1/4. During subsequent review of work packages this was determined to be inadequate and a new work document was originated to reset the torque switch to 1-3/4.

AS-FOUND OPERABILITY:

The as-found operability was indeterminant due to the low close torque switch setting. The valve would have closed at least 97K because of the torque switch bypass but it is uncertain if the valve would have continued to close to 100% closed under design basis conditions.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F012 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance under static conditions to verify operability and correct limit switch settings.

Operability against maximum differential pressure is justified by HPCI quarterly flow test when the valve closes against HPCI pump discharge pressure. See Valve Summary Sheet for HV-155F012 for further discussion.

ANOMALIES:

'he difference between*the original design normal torque switch setting (1-1/4) and that determined necessary as a result of the design review (1-3/4) is due to a more conservative differential pressure being 'used in the design review. The valve was originally specified as experiencing a maximum differential pressure of 1250 PSID where as the valve design review concluded the valve could be called upon to actuate against differential pressures up to 1367 PSID.

ka/msl066cc(32)

PAGE I OF 4 VALVE

SUMMARY

SHEET HV-255F042 VALVE SIZE: 16" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 00 ACT. MANUFACT.: Limitorque MOTOR SIZE: 7-1/2 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION Suppression Pool Suction Isolation Valve DESIGN BASIS:

f MAXIMUM DIFFERENTIAL PRESSURE (PS ID):

OPENING: 44 CLOSING: 29 DISCUSSION:

This valve is normally closed. Normal opening and closing are based on the difference between suppression pool pressure and atmosphere. Abnormal opening is based on 0 PSIA on pump side.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-255F042 RE VIREO SWITCH SETTINGS:

SPRING PAC'UMBER: 60-600-0021-1 NORMAL TORQUE SWITCH SETTING: 1-3/4 CORRESPONDING OUTPUT TORQUE: 71 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 3-1/4 CORRESPONDING OUTPUT TORQUE: 108(Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 5361 (Lbs) OPENING: 79 (Ft-Lbs) , OPENING: N/A CLOSING: 4205 (Lbs) CLOSING: 63 (Ft-Lbs) CLOSING: 1-3/4 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97>> Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255F042 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION'S-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 2 AS-LEFT: 2-1/4 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Yes LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION'.S.

BYPASS: AS-FOUND: 97% Closed AS LEFT: 97K Closed DISCUSSION:

None AS-FOUND OPERABILITY:

The valve was concluded to be operable in the as-found condition.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F042 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability and acceptability of limit switch settings. Since the valve maximum design basis differential pressure is very small (44 PSID Opening, 29 PSID Closing) a static stroke is sufficient to verify operability of the valve.

Most of the thrust required to actuate the valve is necessary to overcome running loads (i.e. stuffing box friction) while little thrust is required to overcome pressure loads.

ANOMALIES:

There were no anomalies associated with this valve.

ka/ms1066cc(32)

PAGE I OF 4 VALVE

SUMMARY

SHEET HV-255F066 VALVE SIZE: 20" VALVE TYPE: Gate VALVE MANUFACT.'. Anchor Darling ACTUATOR TYPE.'MB ACTUATOR SIZE: 0 ACT. MANUFACT.: Limitorque MOTOR SIZE: 10 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Turbine Exhaust Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PS ID):

OPENING: 0 CLOSING: 0 DISCUSSION:

This valve is locked open. It is interlocked with the turbine steam supply valve such that is opens before the steam supply valve opens and closes after the steam supply valve closes. Thus, there will never be flow in the line when the valve actuates and hence no differential pressure.

PAGE 2 OF.4 VALVE

SUMMARY

SHEET HV-255F066 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0004-1 NORMAL TORQUE SWITCH SETTING: 3-1/4 CORRESPONDING OUTPUT TORQUE: 110 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 5 CORRESPONDING OUTPUT TORQUE: 180 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING! 2958 (Lbs) OPENING: 47 (Ft-'Lbs) OPENING: N/A CLOS'ING: 2500 (Lbs) CLOSING: 39 (Ft-Lbs) , 'LOSING: 3-1/4 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS'/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and 'breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET

'V-255F066 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 1 AS-LEFT: 3-1/4 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): Not Verified LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97" Open AS LEFT: 97K Open DISCUSSION:

Spring pac verification was deemed unnecessary since the valve will be stroked against its maximum design basis differential pressure to verify operability. As-found close torque switch setting was too low.

AS-FOUND OPERABILITY:

Even though the torque switch was set below nameplate minimum, the valve was concluded to be operable since it had previously been stroked and had previously passed a local leak rate test at this setting.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F066 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify operability against design basis differential pressures. and also verify acceptability of limit switch settings.

ANOMALIES'ISCUSSION:

The as-found close torque switch setting'as set below nameplate minimum however it was concluded that this did not .adversely affect operability.

ka/msl066cc(32)

PAGE I OF 4 VALVE

SUMMARY

SHEET HV-255F075 VALVE SIZE: 3" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 2 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: RCIC Outboard Steam Isolation Valve DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

OPENING: 50 CLOSING: 44 DISCUSSION:

This valve is normally in its correct position which is open. Valve automatically closes on low HPCI steam supply pressure coincident with high drywell pressure. Abnormal opening is based on recovery from inadvertant closing during turbine operation at maximum discharge pressure. Abnormal closing is based on maximum suppression pool pressure and 0 PSIA in the steam line.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET HV-255F075 RE UIRED SWITCH SETTINGS SPRING PAC NUMBER: 60-600-0023-1 (Old Style)

NORMAL TORQUE SWITCH SETTING: 1 CORRESPONDING OUTPUT TORQUE: 10 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 30 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 1117 (lbs) OPENING: 15 (Ft-Lbs) OPENING: 1-1/2 CLOSING: 1106 (Lbs) CLOSING:. 15 (Ft-Ltts) CLOSING: 1-1/2 ~

REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: 97% Closed TORQUE SWITCH BYPASS: 975 Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it is bypassed the first 97% of travel to insure that the valve will close at least 97K when a close signal is received. In the opening direction the torque switch is bypassed the-first 3X of travel such that the actuator does not trip due to hammberblow and disc pullout loads. The full open limit switch will trip the actuator at 97K full open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255F075 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION'S-FOUND: 1 AS LEFT: 3 CLOSE DIRECTION: AS-FOUND: 2-3/4 AS-LEFT: 3 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION'.S.

BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION:

Design spring pac was an old style 60-600-0023-1 with an open and close torque switch setting of 1-1/2 for a torque output of 15 ft-lbs. As-found spring pac was a 60-600-0060-1 with an open torque switch setting of 1 for 10 ft-lbs output torque and a close setting of 2-3/4 for 15 ft-lbs output torque. As-left spring pac was a new style 60-600-0023-1 with an open and close torque switch setting of 3 for an output torque of 50 ft-lbs.

AS-FOUND OPERABILITY:

An as-found MOVAT's verified operability in the closing direction. The actual thrust delivered was 1125 lbs as compared to 1106 lbs required. In the opening direction the valve opened under static conditions but it is uncertain if it would have fully opened under design basis conditions due to the low torque switch setting.

PAGE 4 OF VALVE

SUMMARY

SHEET HV-255F075 TESTING:

DISCUSSION:

A static MOVAT's was performed post-maintenance to verify the adequacy of both the limit switch settings and developed thrust. The actual thrust developed (4688 lbs) exceeded the calculated required thrust of 1118 lbs.

It is upon this basis that operability against design basis conditions is

)ustified. It was noted, based on the MOVAT's results, that the opening torque switch bypass bypassed the initial actuator hammberblow peak thrust but did not bypass seat breakaway. This was concluded acceptable'ince the MOVAT's showed the magnitude of this load to be very small and also since opening is not a defined safety related design function for this valve.

ANOMALIES:

DISCUSSION The difference between the original design normal torque switch setting (1) and that determined as an output of the design review (1-1/2) is a result of the actuator manufacturer using the wrong stem factor in original actuator sizing calculations. This factor along with an incorrect installed spring pac resulted in an indeterminant as-found operability in the opening direction.

rmhmea102a'

PAGE 1 OF 4 VALVE

SUMMARY

SHEET HV-255F079 VALVE SIZE: 3" VALVE TYPE: Gate VALVE MANUFACT.: Anchor Darling ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 2 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Inboard Turbine Exhaust Vacuum Breaker Isolation DESIGN BASIS:

MAXIMUM DIFFERENTIAL PRESSURE (PSID) 29 'PENING:

CLOSING: 44 DISCUSSION:

Valve is normally open which is the correct position for normal operation.

Valve automatically closes on low HPCI steam supply pressure coincident with high drywell pressure. Abnormal opening is based on maximum suppression pool pressure. Abnormal closing is based on maximum suppression pool pressure and 0 PSIA in the steam line.

VALVE

SUMMARY

SHEET "HV-255F079 RE UI RED SWITCH SETTINGS SPRING PAC NUMBER: 60-600-0023-1 (Old Style)

NORMAL TORQUE SWITCH SETTING: 1 CORRESPONDING OUTPUT TORQUE: 10 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 30 (Ft-Lbs)

REQUIRED THRUST: , REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: ~

1051 (Lbs) OPENING: 15 (Ft'-Lbs ) OPENING: 1-1/2 CLOSING: 1106 (Lbs ) CLOSING: 15 (Ft-Lbs) CLOSING: 1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: 97~ Closed TORQUE SWITCH BYPASS: 97K Closed FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is in both the opening and closing circuit. In the closing direction it is bypassed the first 97K of travel to insure that the valve will close at least 97K when a close signal is received. In the opening direction the torque switch is bypassed the first 3X of travel such that the actuator does not trip due to hammerblow and disc pullout loads. The full open limit switch will trip the actuator at 97K full open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET HV-255F079 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS-FOUND: 1 AS LEFT: 1-1/2 CLOSE DIRECTION: AS-FOUND: 1 AS-LEFT: l-l/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed FULL OPEN LIMIT: AS-FOUND; 97% Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Closed AS LEFT: 97K Closed DISCUSSION

'esign spring pac was an old style 60-600-0023-1 with a required open and close torque switch of l-l/2 for a torque output of 20 ft-lbs. As-found spring pac was a 60-600-0060-1 with torque switch settings of I for a torque output of 10 ft-lbs. As-left spring pac was a new style 60-600-0023-1 with torque switch settings of l-l/2 for a torque output of 30 ft-lbs.

AS-FOUND OPERABILITY:

The valve may not have opened against full design basis differential pressure due to the low open torque switch setting.

The valve would have closed at least 97K due to the torque switch bypass but it is uncertain if the valve would have continued to close to 100%

closed because. of the low close torque switch setting.

PAGE 4 OF 4 VALVE

SUMMARY

SHEET HV-255F079 TESTING:

DISCUSSION:

The valve was electrically stroked post-maintenance under static conditions to verify operability and acceptability of limit switch settings. Since the thrust required to overcome the differential pressure is small (4 100 lbs), a static stroke is sufficient to verify operability of the valve. Most of the thrust is required to overcome running loads such as stuffing box friction which would be present even during a static stroke.

ANOMALIES:

DISCUSSION:

The difference between the original design normal torque swtich setting (1) and that determined as a result of the design review (1-1/2) is a result of the actuator manufacturer using the wrong stem factor in original actuator sizing calculations. This resulted in indeterminant operability of the valve in the as-found condition.

ka/msl066cc(32)

PAGE I OF 4 VALVE

SUMMARY

SHEET FV-256F059 VALVE SIZE: 2" VALVE TYPE: Globe VALVE MANUFACT.: Yarway ACTUATOR TYPE: SMB ACTUATOR SIZE: 000 ACT. MANUFACT.: Limitorque MOTOR SIZE: 2 FT-LBS MOTOR SPEED: 1900 RPM VALVE FUNCTIONAL DESCRIPTION: HPCI Lube Oil Cooling Water Supply Valve DESIGN BASIS:~

MAXIMUM DIFFERENTIAL PRESSURE (PSID):

~

OPENING: 335 CLOSING: 0 DISCUSSION:

This valve receives an open signal on a HPCI system initiation signal.

The valve is manually closed after HPCI system shutdown. Abnormal opening is based on recovery from inadvertant closure.

PAGE 2 OF 4 VALVE

SUMMARY

SHEET FV-256F059 RE UIRED SWITCH SETTINGS:

SPRING PAC NUMBER: 60-600-0024-1 (New Style)

NORMAL TORQUE. SWITCH SETTING: 1-1/2 CORRESPONDING OUTPUT TORQUE: 65 (Ft-Lbs)

MAX. TORQUE SWITCH SETTING: 2 CORRESPONDING OUTPUT TORQUE: 80 (Ft-Lbs)

REQUIRED THRUST: REQUIRED TORQUE: REQ'D T.S. SETTING:

OPENING: 1708 (Lbs) OPENING: 22 (Ft-Lbs) OPENING: N/A CLOSING: '1000 (Lbs) .CL'OSING: 13 (Ft-Lbs), CLOSING: '1-1/2 REQUIRED LIMIT SWITCH SETTINGS:

OPENING DIRECTION: CLOSING DIRECTION:

TORQUE SWITCH BYPASS: N/A TORQUE SWITCH BYPASS: 97K Open FULL OPEN LIMIT: 97K Open DISCUSSION:

The torque switch is only in the closing circuit. In the closing direction it is bypassed the first 3X of travel so the actuator does not trip on torque due to hammerblow and breakaway loads. The opening direction travel is governed solely by a full open limit switch set at 97K open.

PAGE 3 OF 4 VALVE

SUMMARY

SHEET FV-256F059 VERIFICATION OF SWITCH SETTINGS:

TORQUE SWITCH:

OPEN DIRECTION: AS- FOUND: N/A AS LEFT: N/A CLOSE DIRECTION: AS-FOUND: 1-1/4 AS-LEFT: 1-1/2 CORRECT SPRING PAC INSTALLED (Y/N/NOT VERIFIED): See Discussion LIMIT SWITCHES:

OPEN DIRECTION:

T.S. BYPASS: AS-FOUND: N/A AS LEFT: N/A FULL OPEN LIMIT: AS-FOUND: 97K Open AS LEFT: 97K Open CLOSE DIRECTION:

T.S. BYPASS: AS-FOUND: 97K Open AS LEFT: 97K Open DISCUSSION:

Although not required, spring pac verification was performed. It was determined that an old style 60-600-0024-1 was installed in lieu of the new style 60-600-0024-1. As-left spring pac was an old style 60-600-0024-1 with a setting of 1-1/2 for a torque output of 32 ft-lbs.

As-found close torque switch setting was set below nameplate minimum however even at this setting the torque output (22 ft-lbs) exceeded the torque required.

AS-FOUND OPERABILITY:

The valve assembly was concluded to. be operable in the as-found condition.

'\

PAGE 4 OF 4 VALVE

SUMMARY

SHEET FV-256F059 TfSTING:

DISCUSSION:

The valve was electrically stroked post-maintenance to verify'operability against maximum design basis differential pressure in the closing direction and also to verify acceptable limit switch settings.

Operability, in the opening direction, against design basis differential pressure is justified by the fact that the torque switch is not in the opening circuit. Therefore an incorrect torque switch setting cannot prevent the valve from opening.

ANOMALI ES:

DISCUSSION:

One anomaly associated with this valve was an as-found torque switch setting lower than nameplate minimum however this did not adversely affect valve operability. Also, the as-found spring pac did not agree with design but was considered acceptable.

ka/ms1066cc(32)

Attachment 7 Procedure Excerots

MT-GS-050 Revision 0 Page 17 of 106 5.4.3 Limit Switch Installation

a. If a new finger base assembly is to be installed, install jumpers per recorded terminations step 5.4. l.c and recent electrical prints.

NOTE: Insure stationary contacts on finger base assembly make contact with movable contacts on rotor assembly.

b. Using a new gasket, install limit switch assembly in actuator and tighten down holddown bolts.

c. Terminate limit switch leads removed per step 5.4. 1.a

~ and recent electrical prints.

d. Set limits per section 5.5.of this procedure.

5.5 Geared Limit Swi.tch Adjustment NOTE ( 1); Switch adjustments shall ge performed per the "Instruction and Maintenance Manual" for the specific type switch.

NOTE (2): "CAUTION" - High speed valve actuators should be set, carefully so as to prevent valve damage due to high lost inertia movement to the seat (backseat).

NOTE (3): Reference scheme drawing (Elementary) shall be used for verification of correct contact develooment when setting rotor contacts.

5.5.1 "Two Train" geared limit switches (Reference Attachment J).

" OPEN POSITION Using Handwheel or Oeadman switch, "open" valve to determine rotat',on direction of "Intermittent Gear Shaft".

b. Set valve to approximately 97Fo "open" position (deoending upon valve type and speed). (High speed valves will require more travel to the backseat.)

The torque switch bypass limit switch contact must, be set to approx 5 to 7,. to cover initial hammer blow during unseating;

MT-GM-050 Revision 0 page 18 of 106 The determination shall be made by physical observation of stem position or by counting handwheel turns. If handwheel turns are counted, the count shall not begin until lost motion is taken up and the valve stem begins to move.

c. Turn "SET ROD" C.W. until it reaches a "stop" position.

This should release "Intermittent Gear Shaft".

d. If in Step 5.5. l.b (above) "Roto'r" HAS turned 90'o "contact open" position:

(1) Use screwdriver or electric drill to rotate ~

"Intermittent Gear Shaft" in ~ooosite direcitonas observed in Step 5.5. l.a above. Continue rotating until contacts "close" on rotor being set.

(2) Rotate "Intermittent Gear Shaft".in reverse direction from above Step 5.5. l.d (1) until contacts just ".open" on rotor being set.

e, If in Step 5.5, l.b (Above) "Rotor" HAS NOT turned 90 to "contact open" position: ~

Use screwdriver or electric drill to rotate "Intermittent Gear Shaft" in SAME direction as observed in Step 5.5. 1.a above. Continue rotating unti contacts 1 "open" on rotor being set.

f. Turn "SET ROO" C.C.W. until it reaches a "stop" position. This should engage "Intermittent Gear Shaft".

CAUTION 00 NOT OVERTIGHTEN SET ROO.

g. Insure tnat "intermi.ttent Gear Shaft" is engaged, i.e.

use screwdriver to test that Inter. Gear Shaft will not rota e (00 NOT FORCE).

NOTE (4): If the initial energization of motor operators causes a momentary trip to torque switches, adjust limit switches until the valve starts to s roke.

ilT-Gimel-050 Revision 0 Page 19 of 106

- CLOSEO POSITION

h. Using Handwheel or Oeadman switch, "close" valve to determine rotation direction of "Intermittent Gear Shaft".

i. Set val ve to approximately 97~o "cl osed" posi ti on.

(Oepending upon valve type and speed.)

The torque switch bypass limit switch contact must be set to approx 5 to 7~~ to cover .initial hammer blow.

This determination shall be made by physical observation of stem position or by counting handwheel turns. If handwheel turns are counted, the count shall not begin until lost motion is taken up and the valve stem begins to move.

j. Follow steps 5.5. l.c thru 5.5. l.f for, second rotor using same (common') '"Set Rod" as 'per.above steps.

k. Confirm geared limit switch settings.

( 1) Stroke valve full open and full closed. Confirm the following as applicable for the valve under test:

(a) 97K "open" limit switch.

1. In opening di rection the limit switch opens and the valve stem comes to rest-at approximately 97.o open. Verify by mechanical means that the valve is not being electrically backseated.

(Measurable stem travel after the valve comes to rest.)

2. In closing direction, .he torque switch is bypassed for sufficient duration to account for hammer blow within the actuator and take-,up of play between the s.em and disc. (A momentary trip of the close torque switch indicates this is occurring.)

MT-GM-050 Revision 0 Page 20 of 106 (b) 975 "close" limit switch.

l. In opening direction, the torque 'switch is bypassed for sufficient duration to account for hammer blow within the ,

actuator as well as valve unseating

~

breakaway. (Torque switches c'ose prior to limit switch opening.)

2. In closing direction, there is measureable stem movement between limit switch opening and torque switch trip.

(2) If the above is not met, re-perform limit switch adjustment per section 5.4.

"Four Train" geared limit switches (Reference Attachment J).

"Four Train" geared limit switches shall be set in a similar manner as the "Two Train" type. That is, fol'low, section 5.5. 1 for both upper and lowe~. rotors using the upper and lower "Set Rods" respectively.

NOTE: On four train limit switches all limits shall be adjusted for proper settings, this includes, spares.

All limits shall be in accordance with settings indicated by limit switch development on scheme drawings.

Geared Limit Switch Adjustment; Valves with HBC 90'perator.

a. Set Close Switch on valves that close on limit.

(1) Remove Limit Switch cover.

(2) Manually Close/Check close val ve. Val ve i s

'onsidered closed when considerable resistance is felt on the handwheel.

(3) Ensure Mechanical Maintenance has set up Mechanical stop on HBC operator per section 5.4 or 5.5 of MT-GM-020 (as appropriate).

(4) Turn "SET ROO" C.W. until it reaches a "stop" position.. This should release "Intermittent Gear Shaft".

MT-GM-050 Revision p Page 21 of 106 (5) If in Step ¹2 (above) "Rotor" HAS turned 90'o "contact open" position:

(a) Use screwdriver or electric

" Intermittent Gear Shaft" 1n drill to 'ratate

~n astute direction as observed in Step ¹2 above.

Continue rotating until contacts "close" on rotor being set.

(b) Rotate "Intermittent Gear Shaft" in reverse direction from above Step (5)a until contacts just "open" on rotor being set.

(6) If in Step ¹2 (Above) "Rotor" HAS NOT turned 90 to "contact open" position:

Use screwdriver on electric drill to rotate "Intermittent Gear Shaft" in SAME direction as observed in Step ¹2 above. Continue rotating until contacts "open" on rotor being set.

(7) Turn "SET ROO" C.C.W. until'i't reaches a "stop" position. This should engage "Intermittent Gear Shaft" (3) Insure that "Intermittent Gear Shaft" is engaged, i.e., use screwdriver to test that Inter gear Shaft will not rotate (00 NOT FORCE).

(9) Manually open the valve to mfd-position.

(10) Using a deadman switch stroke valve closed electrically. Verify under normal operating (dynamic) conditions (if possible);

(a) L'.mit switch opens stooping the valve motor, not the torque switch.

(b) Valve is seated. This is verified by manually operating the valve in the close direction.

Resistance should be felt on the handwheel immediately.

(11) If Step (10) above fails, repeat Steps (2) and (4) through (10) above until (10) is satisfactorily completed.

MT-GM-0S0 Revision 0 Page 22 of 106

b. Set OPEN switch on valves that OPEN on Limit.

( 1} Using handwheel or deadman switch "open" valve to determine rotation direction of "Intermittent Gear Shaft" (2) Set valve to FULL OPEN position (depending on valve type and speed).

(3) Have Mechanical Maintenance set-up mechanical stop on HBC operator as follows:

(a) Remove cover plate on mechanical stop housing.

(b) Set stop nut which is furthest from valve stem nut should be bottomed-out on casing.

(c) In. stall cove~ plate on mechanical stop housing.

(4) Manually close valve approximateiy one to two'ercent'.

(5) Turn "SET ROQ" C.W. until it reaches a "stop" position. This should release "Intermittent Gear Shaft".

(6) If in Step 1 (above) "Rotor" HAS turned 90'o "contact open" position:

(a) Use screwdriver or electric drill to rotate "Intermittent Gear Shaft" in ooposite direction as observed in Step ¹1 above.

Continue rotating until contacts "close" on rotor being set.

(b) Rotate "Intermittent Gear Shaft" in reverse direction from aoove Step (6)a until contacts just "open" on rotor being set.

(7) If in Step ¹1 (above) "Rotor" HAS NOT turned 90 to "contact open" position:

Use screwdriver or electric drill to rotate "Intermittent Gear Shaft" in SAME direction as observed in Step ¹1 above. Continue rotating until contacts "open" on rotor being set.

MT-GM-050 Revision 0 Page 23 of 106 (8) Turn "SFT ROO" C.C.W. until reaches a "stop" position. This should engage "Intermittent Gear Shaft" ~

(9) Insure that "Intermittent Gear Shaft" is engaged, i.e., use screwdriver to test that Inte.- Gear Shaft will not rotate (00 NOT FORCE).

(10) Manually close the valve to mid-position.

Verify

( 11) Using a dead-man switch, stroke open electrically under normal operating (dynamic) conditions

'that the limit switch (if possible). opens before the torque switch.

( 12) If Step 11 above fails, reoeat steps 2 and 4 through 11 above until it is satisfactorily completed.

C. Verify geared limit "switch settings.

(1) Stroke valve'full open and full closed a minimum tw6 times. Verify that tne torque switch. does not operate and that full stroke is achieved.

(2) Replace gea. ed limit switch cover when comolete.

5.6 Torque Switch Replacement and Adjustment NOTE ( 1): For torque switch types and specifics see Attachment J.

NOTE (2): For the valves as listed on Attachment K, the normal torque switch settings shall be as lis ed.

NOTE (3): Torque switch settings shall always be set between the normal/max settings identified on the torque switch calibration chart UNI ESS OTHERWISE SPECIFIED BY ENGINEERING OR ATTACHMENT K.

NOTE (4): The limiter plate prevents exceeding the maximum setting. I't does not prevent setting less than normal.

5.6,1 Torque switch removal.

a. Read and record "As Found" torque switch setting.

b. Oocument terminations for torque switch that will need to be determinated for torque switch removal on Attachment I.

MT-GM-050 Revision 0 Page 24 of 106

c. Determinate torque switch leads.

d. Remove torque switch.

NOTE: If removal of imit. swf tch assembly i s 1

necessary to remove torque switch, any wires determinated must be documented on Attachment I, Remove in accordance with Section 5.4, Torque Switch Installation

a. Set both open and close torque settings to minimum.

(Minimum equals one (1).)

b. Install new torque switch taking care not to "Pre-load" the switch.

C. Avoid, pre-loading the torque switch as follows: P (I) Insure valve is;off'he seat and in a relaxed pos.i ti on.

(2) Prior to installation, adjust both the "open" and "close" pan head screws to the lowest possible setting.

CAUTION-WHEN THE TORQUE SWITCH HAS BEEN INSERTED, USE CARE NOT TO ROTATE THE HEAD OF THE SWITCH AS THIS COULD "PR'E-'OAO" THE SWITCH RESULTING IN IMPROPER SETTINGS.

(3) Insert the torque switch and securely tighten the hold down screws.

NOTE: For SMB-000 and 00 - The Torque switch must be installed with the roller in the worm groove. Installing it on the worm side will cause misoperation in the close direction if the handwheel rotation is counterclockwise for opening the valve.

Installing it so it binds on the worm shaft causing destruction of the switch.

(4) Adjust the open and close settings for the torque switch to their desired setpoints and tighten the pan head screws.

MT-GM-050 Revision 0

'age 25 of 106 NOTE: If valve has been reworked set torque switch to normal position per torque swi tch namepl ate.

d. Terminate torque switch leads per recorded terminations step 5.6. l.b and up to date drawings.

Torque Switch Adjustment

a. Read and record "As Found" torque switch setting.

b. With switch mounted in valve actuator, loosen both pan head screws.

c. "STRIKERS" Setting.

(1) Set "STRIKERS" to required torque setting(s) for open and close operation.

NOTE: Oo not set the torque switch beyond .the band .which is bounded by the normal and max. settings without consulting maintenance engineering.

(2) The open torque switch setting should be less than or equal to the close torque switch setting.

d. Tighten the pan head screws.

Valve operation.

NOTE: ?rior to operating valve electrically, insure the overload bypass switch is in the test position.

This ensures the overloads are in the circuit.

a. Electrically operate the valve. Readjust to~que switch if necessary shut"off per steps 5.6.3.b through d to ensure tight of valve.

If energizing the operator to open the valve causes the open torque switch to stop the valve, adjust limit switches per section 5.5. 1 so that the torque switch remains bypassed until the valve has cleared the seat being careful not to exceed the bounds for limit switch adjustment.

Read and record "As Left" torque switch setting. J~

u 4+(sI I+ ~ ~ ~

HT-Gimel-050 Min. Revision 0 Oesign Min. (Norm) Hax. Page 89 of 10 Thrust Req'd. Torque Corresp, Torque Req'd. Torque Switch Torque I:orresp .

~ft'.-'Ib) (st-Lb'I Torque

'g Number S rin Pac No. ~(lbs ~sett s n ~susan ~(rt HV 149F007 60-600-0022-1 6,877 113 1-1/2 122 236 HV 149F008 60-600-0022-1 6,877 113 1-1/2 122 2- I/O HV L49F013 6o-6ao-aozz-I 12,820 240 3 256 3 256 FV 149F019 60-600-0048-1 3,746 48 1-1/4 60 2 96 HV 149F031 60-600-0023-1 2,,103 23 2 25 4Q HY 149F059 60-600-0022-1 1,910 26 I 100 HV 149F060 60-600-0024-1 1,042 14 1-1/2 76 2. 80 HV 149F06Z 60-600-0023-1 1,077 15 1-1/2 30 3-1/2 HV 149F084 60-600-0023-1 1,125 16 1-1/2 3Q 3-1/2 HV 155FOOI 60-600-0007-1 26,711 690 3-1/2 '800 3-3/4 8SO HV 155FQ02 60-600-000?-I 28,718 583 3 650 3-3/4 850 HV 15%F003 60-600-aooi-I 28,718 .83 3 650 3-3/4 uSQ HV 155F004 60-600-0021-1 4,85I 72 2 78 3-1/4 LO8 HV 155FOQ6 60-600-OQII-I 42,299 1,189 1-1/2 1,374 3-3/4 3,190 HV 155F007 60-60C'-OOII-L 42,299 1,189 1-1/2 1,374 3-3/4 3,190 (A1t) 60-605-0078-1 2-1/2 1,400 4-1/2 2,400 HV 155F008 60-600-00LL-L 88,574 2,024 2>>1/2 2,'O83 3 2,560 HV 155F012 HV 155F042 HV 155FO66 HV 155FQ?5 HY 155FO?9 60-600-0022-1 60-600-0021-1 60-600-0004-1 60-600-0023-1 60-600-0023-1 8,333 5,491 2,958 1,118

';106 136 8'2 47 1.5 15 1-3/4 2-1/4 3-1/4 1-1/2 l-l/2 .

152 83 110 20 20 3>>1/4 2

5, 2

'80 1-7/8 . 164 I'08 30 30 HV 156F059 60-600-0024-1 I 708 22 '2 80 2 80

.,( 249F007 60-600-0022-l 6,87? '113 I-'I/2 122 2-3/4 236 HV 249F008 60-600-0022-1 6,877 113 1-.1/2 122 2-1/8 L86 HV 249F013 60-600-0022-1 12,820 240 '3 256 3 256 FV 249F019 60-600-0048-1 3,746 48 I-L/4 60 1-3/4 96 HV 249F031 60-600-0023-1 2,103 23 2 25 4 40 HV 249F059 60-600-0022-1 1,910 26 I 100 1-1/.2 113 HV 249F060 60-600-0024-1 1,042 14 Z. 80 2 80 HV 249F062 60-600-0023-1 1,077 15 1-1/2 30 3-1/2 56 HV 249F084 6Q-600-0023-1 1,125 16 1-1/2 30 3-1/2 S6 HV 255F001 60-600-0007-1 26,711 690 3-1/2 800 3-3/4 850 3-3/4

'V 255F002 60-600-0007-1 28,718 583 2-7/8 650 8SO HV 255F003 60-600-0007-1 28,718 583 2-7/8 650 3-3/4 850 HV 255F004 60-600-0021-1 4,851 72 2 78 3-1/4 108 HV 255F006 60-600-0011-1 42,299 1,189 L-I/2 1,374 3-3/4 3,190 HV 255F007 60-600-0011-1 42,299 1,189 1-1/2 1,374 3-3/4 3,190 (A1t) 60-600-0078-1 2-1/2 1,400 4-1/2 2,4CO HV Z55F008 60-600-0011-1 88,574 2,024 2-1/2 2,083 3 2,560 HV 255FQIZ 60-600-0022-1 8,333 136 1-3/4 152 1-7/8 164 HV 255F042 60-600-0021-1 5,491 82 2-1/4 83 3-1/4 108 HV 255FO66 60-600-0004-1 2,958 47 3-1/4 110 5 '.80 HV 255F075 60-600-0023-1 1,118 15 1-1/2 20 Z. 30 HV 255FO?9 60-600-0023-1 1,106 15 1-1/2 20 2 30 HV 256F059 6a-6ao-oo24-I 1,708 22 1-L/2 76 2 80 1TE: Above Torque Switch settings on1y apply if specified spring pac is installed.

If di fferent spring pac is used consult Maintenance.Engineering for correct setting.

'age 1 of I