ML20100J561

Responds to GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves

ML20100J561
Person / Time
Site:	Point Beach
Issue date:	02/09/1996
From:	Link B WISCONSIN ELECTRIC POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GL-95-07, GL-95-7, VPNPD-96-011, VPNPD-96-11, NUDOCS 9602290148
Download: ML20100J561 (14)

Text

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l Wisconsin Electnc \

POWER COMPANY 231 W Mchigan. PO Box 2046 Milwaukee.Wi 53201 2046 (4'G) 2212345 VPNPD-96-011 February 9,1996 Document Control Desk )

US NUCLEAR REGULATORY COMMISSION Mail Station PI-137 Washington, DC 20555-0001 Ladies / Gentlemen:

DOCKETS 50-266 AND 50-301 RESPONSE TO GENERIC LETTER 95-07 i PRESSURE LOCKING AND THERMAL BINDING OF SAFETY-RELATED POWER-OPERATED GATE VALVES i POINT BEACH NUCLEAR PLANT. UNIT 1 AND 2 l l

1 On August 17,1995, the NRC issued Generic Let,ter (GL) 95-07, " Pre.;sure Locking and Thermal Binding of Safety-Related Power-Operated Gate Valves." The GL requested that licensees perform, or confirm previous performance, of: i Within 90 days: l l

1. Perform a screening evaluation to identify valves which are potentially susceptible to pressure locking and/or thermal binding.

2. Document a basis for operability of potentia!!y susceptible valves, or take actions in accordance with Technical Specifications.

Within 180 days:

1. Evaluations of operational configurations of safety-related, power-operated (including motor, air, and hydraulically operated) gate valv.s for susceptibility to p: essure locking and thermal binding.

2. Further analysis, and any needed corrective actions, to easure that identified potentiaUy susceptible valves are capable of performing their current licensing basis safety functions.

The GL also requested that a summary description of the actions taken in response to the above 90-day and 180-day requested actions, be submitted within 180 days of the date of the Generic Letter.

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e Document Control Desk February 9,1996 Page 2 Wisconsin Electric Power Company has performed all of the requested actions discussed within the Generic Letter. The following provides a summary description of the information requested for the 180-day GL response.

The susceptibility evaluation began by developing a list of all air operated, motor operated, and hydraulically operated valves within the plant. From this list,110 valves were identified as being safety-related, power operated gate valves. An additional four (4) gate valves were identified as being safety-related, but manually operated. Four (4) other power-operated gate valves were identified as non-safety-related, but required to meet 10 CFR 50, Appendix R requirements for hot shutdown.

These 118 gate valves were screened for GL 95-07 susceptibility and are listed in Attachment 1.

The " Pressure Locking and Thermal Bin ling Workshop" held by NRC Region III on November 7,1995, provided the screening methodology utilized to identify which of the 118 gate valves are susceptible to pressure locking or thermal binding. The screening criteria used are listed in Attachment 2, while the valves identified as potentially susceptible are included in Attachment 3.

The screening of the 118 gate valves identified 42 as being potentially susceptible to thermal binding or pressure locking. These valves have been identified with "yes" in the GL 95-07 column of Attachment 3. Further evaluations of these 42 valves, identified as EVAL l-6 on Attachment 3, revealed that only the SI-860 A-D (Containment Spray Pump Discharge Redundant Isolation Valves) valves on each unit (eight (8) total valves) required long term corrective actions to ensure they could perform their safety functions. All other safety-related, power operated gate valves were shown to be unaffected by pressure locking or thermal binding through one of the evaluations listea in Attachment 3.

In addition to the eight (8) valves identified above, fourteen (14) gate valves, both manual and power operated, outside the scope of GL 95-07 were identified as susceptible to thermal binding or pressure locking while achieving cold shutdown.

The SI-860 A-D valves (eight (8) safety-related valves identified above) were noted to be susceptible to pressure locking during the performance ofInservice Tests (ITs) 05 A and 06A, " Containment Spray Pumps and Valves (Monthly)" Unit I and Unit 2 respectively. The long-term, permanent corrective action for the SI-860 valves was to revise the IT-05A and IT-06A to include cycling of the associated valve afler each containment spray pump is secured. This would eliminate any valve bonnet pressure buildup that the tests may have caused. These revisions were implemented with the issuance ofIT-05A, Revision 5 and IT-06A, Revision 5, dated January 8,1996. With these changes, the IT TEST POS entry os Attschment I becomes "NI", and the valves are placed in a condition which mitigates the susceptibility to pressure locking.

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Document Control Desk February 9,1996

, Page 3 In addition, PBNP Calculation 96-0062 contains the evaluation for operability of the SI-860 valves when the bonnets have been pressurized as a result of performing IT-05A and IT-06A. The calculation shows that with the bonnets of the SI-860 valves pressurized to the maximum available pressure, the valves l remain operable. Therefore, based on the evaluations and IT procedure revisions, the susceptibility of I the SI-860 valves to pressure locking has been adequately addressed.

The manually operated, low head, safety injection (low head SI to high head SI) suction cross-connect velves (SI-857 A and B for each unit), are susceptible to pressure locking after stopping the Residual Heat Removal (RHR) pumps, and attempting to open them to provide suction to the high head SI pumps. PBNP Calculation 96-0062 indicates that, while they remain operable, opening of the valves i may be diflicult and require some form of mechanical assistance. While they are manual valves, and not specifically a subject of GL 95-07 issues, we chose to consider them in our analysis and resolution efforts. Thus, evaluations are being initiated for possible bonnet reliefinstallation on these valves. In addition, the SI-857 valves are not susceptible to thermally-induced bonnet pressure rises since there is a 130 foot piping run between the hot RHR piping and the SI-857 valves, located at the suction of the '

high head SI pumps.

The power operated gate valves RH-700, RH-701 and RH-720 on each unit, (six (6) valves total),

provide RHR suction and return from the reactor coolant system. Since this function is not necessary to maintain hot shutdown per the PBNP safety analysis, they do not fall within the requirements of GL 95-07. However, to place the plant in a cold shutdown condition, such as for a normal refueling, l these valves would be required to open. For this reason, evaluations have been initiated to investigate l potential modifications which would enhance valve reliability. These evaluations will also be completed in the near future. ,

The Containment Spray Pump suction valves from the RHR heat exchanger HX-11, (Valves SI-871 A and B for each unit), were alsc identified as being potentially susceptible to pressure locking while proceeding to cold shutdown. The operation of these valves is not necessary to achieve hot shutdown conditions and would only be required for actions beyond the Emergency Operating Procedures (EOPs).

These valves are no longer used for lining-up low head SI to containment spray. We have performed analyses to show that the valves would open with bonnet pressurization due to IT testing, and that any thermally induced bonnet pressurization would occur slowly, allowing suflicient time for pressure to decay. Therefore, no further action will be taken for these valves.

The Power Operated Relief Valves (PORV) block valves, (RC-515 and RC-516 on each unit), were identified as being susceptible to thermal binding and pressure locking. The operation of the PORV l block valves is not necessary to achieve a hot shutdowa condition following a phnt accident. PBNP Memo 95-0430 contains the resolution of the potential thermal binding of these PORV block vahes. It

! concludes that the thermal binding of these valve.s will not result in a safety problem, and that suflicient l

. . _ ._ m._ _ _ . . _ . . __ _. _. _ _ .. _ _ _ . . _ _

Document Control Desk February 9,1996 Page 4 guidance exists for plant operators in the event thermal binding does occur. To address the potential of pressure locking of the block valves, PBNP Calculation 96-0062 shows that sufficient valve operator thrust margin exists such that the valves will open with the bonnet pressurized.

In summary, all safety-related, power operated gate valves have been screened and evaluated for susceptibility to the affects of pressure locking and thermal binding. All corrective actions identified for the safety-related gate valves have been completed, and several actions to enhance non-safety-related and manually operated gate valve reliability are currently in progress. Based on the actions we have taken on this issue, we believe that with the submittal of this letter, all requirements of Generic Letter 95-07 have been satisfactorily completed.

Please contact us if you have any questions or require any additional information.

Sincerely, j i

0- ,tr Bob Link Vice President Nuclear Power MDR/jg cc: NRC Resident Inspector i NRC Regional Administrator, Region III l

l Subscribed and sworn to before me this 94 day of Fd% 1996.

J j O m hiu bauN i (Nya$ Public, State ofWisconsin My commission expires: 8 * /D / 9 t,

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! ATTACHMENT 1 i.

j The following provides a description of the fields used in this attachment:

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Unit: Operating unit associated with the valve. '

Number

Valve identification number.

t Safety Function: Valve position required to perform its safety function.

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Open/Close -

Valve cycled during safety response.

Close/(Open) - Valve remains closed to put unit into hot shutdown.

. Valve opened in some cases to reach cold shutdown.

l l Normal Position: Valve position maintained during normal plant operation.

IT Test Pos: This column is equivalent to the test or surveillance position. This position did not matter in most cases due to valve design, normal position, and system configuration. (Note: Equipment out of service during IT testing.)

NA -

. Position "not applicable", valve normally maintained open or maintained closed and not required to open. 1 i

NI -

"No Impact" would result from the IT testing that would be  !

more severe than the normal operating position.

NIVD - "No Impact Due to Valve Design", since solid wedge gate valves are not susceptible to pressure locking.

NIBV - No Impact created by IT testing since valve has a bonnet vent.

NIMA - No impact on valve operation since valve is manually operated.

1 Closed - Valve is closed during IT testing and bonnet pressurization can occur.

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1 ATTACHMENT 1 i Bonnet vent: The valves were reviewed to determine if a vent path for the bonnet is present. ,

Safety-related: Safety-related status of the valve.

Type: The type of gate valve.  ?

Delta Temp.: Temperature transient that the valve will be exposed to. Either the piping l fluid temperature change or the valve environment.  :

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a ATTACHMENT 1-Mov.XLS Unet i NUMBER Safety Function Normal Position IT Test Pos Bonnet vent Safety Related TYPE DetteTemp P81 AF44006 open closed MVD no Yes Solid Wedge GATE VALVE eminent PS2 AF-04008 open closed MVD no Yes Solid Wedge GATE VALVE eminent

• P90 AF44009 open closed MVD no Yes Solid Wedge GATE VALVE eminent P80 AF-04016 open closed MVD no Yes Solid Wedge GATE VALVE emtnant PSO AF-04020 open closed MVD no Yes Solid Wedge GATE VALVE embient P90 AF-04021 open closed MVD no Yes Solid Wedge GATE VALVE embient P90 AF-04022 open closed MVD no Yes Solid Wedge GATE VALVE embient P90 AF-04023 operi closed MVD no Yes Solid Wedge SATE VALVE emtnant PSI CC-OO719 close open NA no Yes PereAel Seat i ouble Wedge GATE VALVE PB2 CC40719 close open NA no Yes Perosol Seat Double Wedge GATE VALVE P81 CC-00738A open closed M no Yes Flexible Wedge GATE VALVE embient PS2 CC-OO738A open closed M no Yes Flexible Wedge GATE VALVE embient PSI CC-OO7388 open closed M no Yes Flexible Wedge GATE VALVE embient PS2 CC-OO7388 open closed M no Yes Flexible Wedge GATE VALVE emtnent PS1 CC-OO754A close open NA no Yes Solid Wedge GATE VALVE PS2 CC-OO754A close open NA no Yes Solid Wedge GATE VALVE P51 CC-OO7548 close open NA no Yes Solid Wedge GATE VALVE PS2 CC-OO7548 close open NA no Yes Solid Wedge GATE VALVE P81 CC-OO759A close open NA no Yes Solid Wedge GATE VALVE PS2 CC-OO759A close open NA no Yes Solid Wedge GATE VALVE P81 CC407598 close open NA no Yes Solid Wedge GATE VALVE PS2 CC407598 close open NA no Yes Solid Wedge GATE VALVE P81 CV401128 open closed M no No Double Disc Flexible Wedge GATE VALVE emtnent PS2 CV401128 open closed M no No Double Disc Flexible Wedge GATE VALVE embient P81 CV40112C close open NA no No Double Disc Flexible Wedge GATE VALVE CV-OO112C close open NA na No Double Disc Flexitde Wedge GATE VALVE

. CV40270A close open NA r.o Yes Perellet Seat Double Wedge GATE VALVE PS2 CV40270A close open NA no Yes PeroRet Seet Double Wedge GATE VALVE P81 CV402708 close open NA no Yes Perellel Seat Double Wedge CATE VALVE PS2 CV402708 close open NA no Yes Peregel Seat Double Wedge GATE VALVE

, PSI CV40313 close open NA no Yes Double Disc Flexible Wedge GATE VALVE PS2 CV40313 close open NA no Yes Double Disc FlexitHe Wedge GATE VALVE P81 CV41298 close open NA no Yes Flexible Wedge GATE VALVE PS2 CV41298 close open NA no Yes Flexible Wedge GATE VALVE P81 CV41299 close closed NA no Yes Flexible Wedge GATE VALVE P82 CV41299 close closed NA no Yes Flexitdo Wedge GATE VALVE ,

P90 F043930 open closed MVD no Yes Solid Wedge GATE VALVE emtnent P90 F043931 open cloeod MVD no Yes Solid Wedge GATE VALVE __

o nbient PSI RC40427 close open NA no Yes PereRel Seat Double Wedge GATE VALVE PS2 RC-OO427 close ope, NA no Yes Perellet Seat Doutde Wedge GATE VALVE l PSI RC40515 open/close open/ closed M no Yes Flexible Wedge GATE VALVE 400 F Pf2 RC-OO515 open/ciose open/ closed M no Yes Flexitde Wedge GAN, VALVE 400 F PSI RC-OO516 open/close open/ closed M no Yes Flexitdo Wedge GATE VALVE 400 F PS2 RC-OO516 open/close open/ closed NI no Yes FlexitNo Wedge GATE VALVE 400 F PSI RC40598 close closed NA no Yes Pereget Seat DoutWe Wedge GATE VALVE PS2 RC-OO598 close closed NA no Yes Peregel Seat Double Wedge GATE VALVE

ATTg g NT 1 i

i Unit NUMBER Safety Function Normal PositWe IT Test Pos Bonnet Vent Safety Related TYPE DetteTemp P81 14C-OO599 close closed NA no Yes Perellet Seat Double Wedge GATE VALVE PS2 14C-OO599 close closed NA no Yes Perellel Seat Double Wedge GATE VALVE -

PS1 RH40700 closenopen) closed NAANI) no Yes Paretel Seat Double Wedge GATE VALVE 250 F j PB2 MH40700 closenopen) closed NARNI) no Yes Perenel Seet Double Wedge GATE VALVE 250 F  !

PS1 RH40701 closedopen) closed NARNI) no Yes Flexible Wedge GATE VALVE 140F P92 l#400701 closeMopen) closed NANNI) no Yes Flexible Wedge GATE VALVE 140F P91 MH-OO720 closenopen) closed NASM) no Yes Flexible Wedge GATE VALVE 140 F PS2 I4H40720 closenopen) closed NARNil no Yes Flexible Wedge GATE VALVE 140 F P90 ftS-SA40009 close open NA no Yes Flexible Wedge GATE VALVE 540 F P90 RS-SA40010 close open NA no Yes Flexible Wedge GATE VALVE 540 F PS1 SI40825A open open NA no Yes Double Disc Flexible Wedge GATE VALVE PS2 Sl40825A open open NA no Yes Double Disc Flexible Wedge GATE VALVE  ;

P91 SI408258 open open NA no Yes Double Disc Flexible Wedge GATE VALVE P92 SI-008255 open open NA no Yes Double Disc Flexible Wedge GATE VALVE S140826A open closed NIBV yes Yes Double Disc Flexible Wedge GATE VALVE embent PB_1_

PS2 SI-00826A open closed NIBV yes Yes Double Disc Flexible Wedge GATE VALVE embient ,

P81 S1408288 open open NA yes Yes Double Disc Flexible Wedge GATE VALVE PS2 SI-008268 open open NA yes Yes Double Disc Flexible Wedge GATE VALVE ,

P81 St-00826C open open NA yes Yes Flexible Wedge GATE VALVE PS2 Sl40826C open open NA yes Yes Double Dise Flexible Wedge GATE VALVE  ;

PB1 SI-OOS41 A close open NA no Yes PeroRei Seat Double Wedge GATE VALVE  !

P52 S140841A close open NA no Yes Perellel Seat Double Wedge GATE VALVE ,

PB1 SI-00841:.1 close open NA no Yes Perenel Seat Double Wedge GATE VALVE [

S540841 B close open NA no Yes Parenel Seat Double Wedge GATE VALVE f82 PS1 Sl408l51 A open closed NIBV yes Yes Pere 9el Seat Double Wedge GATE VALVE 150 F  !

PS2 SIP '4' open closed N18V yes Yes Perellel Seat Double Wedge GATE VALVE 150 F ,

PS1 5440s open closed NIBV yes Yes Perellet Seet Double Wedge GATE VALVE 150 F t PB2 S8408518 open closed NIBV yes Yes Perenel Seat Double Wedge GATE VALVE 150 F ,

PS1 St40852A op+n closed NIBV yes Yes Peregel Seat Double Wedge GATE VALVE 200 F l PS2 S840852A open closed NIBV yes Yes Perenel Seat Double Wedge GATE VALVE 200 F ,

PS1 S6-003528 open closed NISV yes Yes PereHet Seat Double Wedge GATE VALVE 200 F PS2 St-008628 open closed NISV yes Yes Peregel Seat Double Wedge GATE VALVE 200 F j PB1 5840856A close open NA no Yes PareRel Seat Double Wedge GATE VALVE {

l PS2 Sl40856A close open NA no Yes Perstel Seat Double Wedge GATE VALVE P91 SS-008568 close open NA no Yes Perstel Seet Double Wedge GATE VALVE

.PS2 58408568 close open NA no Yes Paratel Seat Double Wedge GATE VALVE i PB1 SI-00857A open closed NIMA no Yes Double Disc Flexible Wedge GATE VALVE e abient i PS2 St40857A open closed NilWA no Yes Double Disc Flexible Wedge GATE VALVE embient PS1 SI-00857B open closed NIMA no Yes Double Disc Flexible Wedge GATE VALVE embient PS2 S5408575 open closed NIMA no Yes Double Disc Flexible Wedge GATE VALVE embient

• PB1 5840860A open closed NI no Yes Perellel Seet Double Wedge GATE VALVE emeient i PS2 St-00860A open closed M no Yes Perenel Seat Double Wedge GATE VALVE embient  !

P91 S&408608 open closed M no Yes Perstel Seat Double Wedge GATE VALVE embient PB2 55408608 open closed M no Yes Parenel Seat Double Wedge GATE VALVE embent PB1 Sl40860C open closed NI no Yes Perellel Seat Double Wedge GATE VALVE embent PB2 SI-OO860C open closed NI no Yes Parenel Seat Double Wedge GATE VALVE embient

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ATT g gNT 1 Unit NUMBER Safety Function Normal Position IT Test Pos Bonnet Vent Safety Related TYPE DetteTemp 561 Sl40860D open closed NI no Yes Perenel Seat Double Wedge GATE VALVE embient

-PS2 Sl40860D open closed NI no Yes Paratel Seat Double Wedge GATE VALVE embient PB1 Sl40866A close open NA no Yes Perstel Seat Double Wedge GATE VALVE PS2 Sl40866A close open NA no Yes Paratel Seat Double Wedga GATE VALVE PS1 Sl406668 close open NA no Yes Peratel Seat Double Wedge GATE VALVE PS2 51408668 close open NA no Yes Pereuel Seat Double Wedge GATE VALVE PS1 SI-OO670A close open NA no Yes Double Disc Flexible Wedge GATE VALVE PS2 Sl40870A close open NA no Yes Double Disc Flexible Wedge GATE VALVE PS1 Sl408708 close open NA no Yes Double Disc Flexible Wedge GATE VALVE PS2 Sl408708 close open NA no Yes Double Disc Flexible Wedge GATE VALVE PB1 Sl40871A close/(open) closed NA/(closed) no Yes Pereuel Seat Double Wedge GATE VALVE embient (300)

PS2 Sl40871A close/topen) closed NA/(closed) no Yes Perstel Seat Double Wedge GATE VALVE embient (300)

PB1 Sl40871B close/(open) closed NA/(closed) no Yes Perstel Seat Double Wedge GATE VALVE embien". (300)

PS2 S1408718 close/lopen) closed NA/(closed) no Yes ParaNel Seat Double Wedge GATE VALVE embient (300)

P81 Sl46896A close open NA no Yes Double Disc Flexible Wedge GATE VALVE PS2 S140896A close open NA no Yes Double Disc Flexible Wedge GATE VALVE PS1 Sl408968 close open NA no Yes Double Disc Flexible Wedge GATE VALVE PS2 Sl408968 close open NA no Yes Double Disc Flexible Wedge GATE VALV3 PBO SW42816 close open NA no Yes Solid Wedge GATE VALVE P90 SW42817 close open NA no Yes Solid Wedge GATE VALVE PB1 SW42880 close open NA no Yes Solid Wedge GATE VALVE PS2 SW42880 close open NA no Yes Solid Wedge GATE VALVE PS1 SW42907 open closed N1 no Yes Solid Wedge GATE VALVE embient P92 SW42907 open closed NI no Yes Solid Wedge GATE VALVE embient PB1 SWC2908 open closey N1 no Yes Solid Wedge GATE VALVE embient PS2 SW42908 open closed NI no Yes Solid Wedge GATE VALVE embient 4

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l ATTACHMENT 2

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W ETY RELATED POWER OPERATED GATE VALVE- ]

PRESSURE LOCKING AND THERMAL BINDING SUSCEPTIBILITY CRITERION i

1 mammmer Valve Normal Safety Position Test or Evaluate Position Surveillance Susceptible Position Within Scope of GL 95-07 Normally Closed Open Closed Yes Normally Closed Open Open Yes Normally Closed Closed Closed No

• Normally 11osed Closed Open No

• Normally Open Open -

Closed 'Yes Nomally Open Open Open No Normally Open Closed Closed No *

'Normally Open Closed Open No *

= Licensees should be aware of the potential for thermally-induced pressure transients resulting in bonnet over pressurization. j

I ATTACHMENT 3 The following provides a description of the fields used in this attachment:

Unit: Operating unit associated with the valve.

Number: Valve identification number. j Sudden Pressure: A review of the system design to determine if a sudden pressure drop could occur with the valve closed, trapping pressure in the j bonnet, l 1

Pressure: Maximum expected differential pressure.

Flow: Expected flow through valve when open.

Temperature: Maximum expected temperture of fluid.

Valve Size: Nominal valve size. l l

GL 95-07: Valve is potentially susceptible using the screening method of the NRC. When a screening shows "no(yes)", this indicates the valve is l not susceptible to achieve hot shutdown, but would be susceptible  !

to achieve cold shutdowa. l l

EVAL 1: The valve is determined unaffected if the flexible wedge valve is supplied with a bonnet vent and no delta temp. occurs except that j resulting from ambient changes, j EVAL 2: The valve is determined unaffected since the parallel seat double i wedge gate valve has a bonnet vent.

EVAL 3: The valve is determined unaffected since the solid disc valve does not experience a delta temp. except that resulting from ambient changes.

EVAL 4: The valve is determined unaffected since the flexible wedge valve does not experience a delta temp. except that resulting ,

from ambient changes and does not experience a sudden I depressurization. I page1  ;

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4 ATTACHMENT 3 I I

EVAL 5: PBNP Calculation 96-0062 contains the evaluation / calculations performed to ensure that the trapped bonnet pressurization does not

cause an excessive opening load on the SI-857 and SI-860 valves.

i f EVAL 6: PBNP Memo 95-0430 and PBNP Calculation 96-0062 describe the evaluations performed to ensure thermal binding will not occur, and

actions taken to prevent thermal binding. The evaluation also i describes tnat operating instructions exist to safely recover should a problem occur, i I i

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ATT g NT 3 Unit NUMBER jSudden Pressure Pressure Flow Ternperature Velve Site GL 9547 Evel1 Fvel 2 f: vel 3 Evel4 Evel5 Evel6 P81 AF-04006 no 105 400 80 6 yes ok PS2 AF-04006 no 105 400 80 6 yes ok P90 AF44009 no 105 200 80 4 yes ok P90 AF-04016 no 105 200 80 4 yes ok P90 AF-04020 no 1405 200 100 3 yes ok P90 AF-04021 no 1405 200 f00 3 yes ok P90 AF-04022 -

1405 200 700 3 yes ok P90 AF-04023 2. T405 200 100 3 yes ok PSI CC40719 30, 132 570 727 6 no PS2 CC-00719 M 192 570 127 6 no PS1 CC-00738A ., 160 2765 f17 to yes ok PS2 CC-00738A no 160 2765 717 10 yes ok PSI CC-007368 no 160 2765 177 10 yes ok PS2 CC-007388 no 160 2765 ff7 10 yes ok P81 CC 00754A no 145 230 127 4 no PS2 CC-00754A no 145 230 127 4 no PS1 CC-007548 no- 145 230 127 4 no PS2 CC407548 no 145 230 127 4 no PS1 CC40759A no 145 230 127 4 no

.PS2 CC40759A no 145 230 127 4 no PSI CC-007598 no 145 230 127 4 no PS2 CC-007598 no 145 230 127 4 no P81 CV-001128 no 87 120 127 4 yes ok 42 CV-001128 no 87 120 127 4 yes ok P81 CV40112C no 80 120 127 4 no PS2 CV-00112C , no 80 120 127 4 no P81 CV-00270A no 1985 15 520 2 no PS2 CV40270A no 1985 15 520 2 no PS1 CV402708 no 1985 15 520 2 no PS2 CV-002708 no 1985 15 520 2 no

.P81 CV40313 no 148 16 142 3 no PS2 CV40313 no 148 16 742 3 no PS1 CV41298 no 1985 120 520 3 no PS2 CV41298 no 1985 120 520 3 no PSI CV-u1299 no 1985 30 520 2 no PS2 CV41299 no 1985 30 520 2 no P90 FO-03930 no 90 8 715 1 yes ok P90 R)43931 no 90 8 ff5 1 yes ok PS1 RC-00427 no 1985 50 520 2 no PS2 RC-00427 no 1985 50 520 2 no P81 RC-00515 yes 2485 blowdown 653 3 no(yes) ok PS2 RC-00515 yes 2485 blowdown 653 3 notyes) ok PS1 RC-00516 yes 2485 blowdown 653 3 no(yes) ok PS2 RC40516 yes 2485 blowdown 653 3 notyes) ok PS1 RC-00598 no 1985 0 520 2 no P82 RC40598 no 1985 0 520 2 no Page 4

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ATT g NT 3-I ,

Urut NUM8ER Sudden Pressure Pressure l Flow Temperature Velve Sire GL 9547 Evel1 Evol2 Evel 3 Evel 4 Evol 5 Evol6 PSI RC40599 no 1985 0 520 2 no PS2 RC-00699 no 1985 0 520 2 no P91 RH40700 yes 1982 3100 610 10 no(ves)

PS2 RH40700 yes 1982 3100 610 10 notvesi P81 RH40701 no 1990 3100 610 10 no(ves)

PS2 RH40701 no 1990 3100 610 10 no(yes) .

PS1 RH40720 yes 564 3100 553 10 no(yes)

PS2 RH40720 yes 564 3100 553 10 nc{yes)

P90. RS-SA40009 no 1050 blowdown 540 3 no P90 RS-SA-00010 no 1050 blowdown 540 3 no =

PB1 Sl40825A no 30 1230 85 12 no PS2 SI-00825A no 30 1230 SS 12 no

.PB1 Sl408258 no 30 1230 SS 12 no P82 Sl408258 no 30 1230 95 12 no a

PSI S840826A no 30 1230 745 8 yes ok

- PS2 St-00826A no 30 -1230 145 8 yes ok Pet S1408268 no JO 1230 145 8 no PS2 $l408268 no 30 1230 145 8 no PS1 S140S26C no 30 1230 745 8 no PS2 Sl40826C no 30 1230 145 8 no P91 SI-00841 A no 1990 8228 553 10 no PS2 Sl40841A no 1990 8228 553 10 no PB1 SI-008418 no 1990 8228 553 10 no PS2 Sl408418 no 1990 8228 553 10 no P81 S140851 A no 73 2200 340 10 yes ok PS2 S840851A no 73 2200 340 10 yes ok PB1 SI-008518 no 73 2200 340 10 yes ok PS2 58408518 no 73 2200 340 10 yes ok PB1 S840852A yes 1996 1560 615 4 yes ok PS2 Sl40852A yes 1996 1560 615 4 yes ok PSI S6408528 yes 2008 1560 815 4 yes ok PS2 Sl408528 yes 2008 1560 615 4 yes ok PSI S840856A no 437 2200 700 10 no PS2 Ss40856A no 437 2200 100 10 no PCs1 Sl408568  % 437 2200 700 10 no PS2 S8408568 no 437 2200 700 10 no

.P81 SI-00857A yes 207 1320 340 6 yes ok PS2 Sl40857A yes 207 1320 340 6 yes . ok j P81 S8408578 yes 207 1320 340 6 yes ok PS2 58408578 yes 207 1320 340 6 yes ok PSI S8408 COA yes 458 1320 100 6 yes ok PS2 SI40860A yes 458 1320 700 6 yes ok l

PB1 St-008603 yes 458 1320 700 6 yes- ok P82 SI-009608 yes 458 1320 700 6 yes ok P81 S840860C yes 458 1320 700 6 yes ok PS2 St-00860C yes 454 1320 700 6 yes ok i

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ATTACHMENT 3 mov.xtS e

UnR NUMBER Sudden Pressure Pressure Flow Temperature Velve Sire GL 9547 Evel 1 Evel 2 Evel 3 Evel 4 Evel 5 Evol6 P81 51408600 yes 458 1320 700 6 yes ok PS2 $140860D yes 458 1320 100 6 yes ok i P81 Sl40866A no 1745 1230 100 4 no PS2 SI-00866A no 1745 1230 100 4 no P81 Sl408868 no 1745 1230 TOO 4 no PS2 Sl408668 no 1745 1230 700 4 no P81 Sl40870A no 130 1320 85 6 no PS2 Sl40870A no 130 1320 35 6 no P81 SO408708 no 130 1320 95 6 no PS2 Sl408708 no 130 1320 95 6 no P81 Sl40871 A no 207 1320 340 6 rwHyos)

PS2 SI-00871 A no 207 1320 340 6 notyes)

PSI S8408718 no 207 1320 340 6 no(yes)

PS2 58408718 no 207 1320 340 6 notyes)

P81 Sl40896A no 130 1230 95 6 no '

PS2 Sl40896A no 130 1230 95 3 no PS1 Sl4)08968 "no 130 1230 SS 6 no PS2 Sl408968 no 130 1230 35 6 no P90 SW42816 no 98 673 SO 6 no P90 SW-02817 no 105 276 SO 6 no P81 SW42880 no 105 858 SO 6 no PS2 SW42880 no 105 791 SO 6 no P81 SW42907 no 98 4800 SO 12 yes ok PS2 SW42907 no 38 4800 SO 12 yes ok P81 SW42908 no 98 4800 SO 12 yes ok PS2 SW42iir08 no 98 4800 SO 12 vos ok Page 6

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