ML20197C072
| ML20197C072 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 10/20/1986 |
| From: | NUCLEAR ENERGY SERVICES, INC. |
| To: | |
| Shared Package | |
| ML20197C062 | List: |
| References | |
| 80A4721-APP-E, NUDOCS 8610310183 | |
| Download: ML20197C072 (29) | |
Text
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Document No. 80A4721 Page El of 29 I
APPENDIX E l
VALVE TESTING p*
8610310183 861020 ADOCK 05000029 PDR PDR G
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Document No. 80A4721 h
Page E2 of 29 f\\
VALVE CLASSIFICATIONS i
Per Section IWV-2110 of the code, there are four classifications of valves applicable to Yankee Rowe; A, B, C, and D.
The Category A valves fall into two areas, Containment Isolation Valves (CIV's), and Pressure Isolation Valves (PIV's). All CIV's are subject to Appendix J of 10 CFR 50. Yankee Rowe requests relief from the leak testing requirements of Section XI, in favor of the leak testing requirements of Appendix J.
The CIV's are listed in the Technical Specifications; the existing requirements and exemptions listed therein should also apply to l
the valve program.
There are 16 PIV's at Yankee which are identified within the valve listing l
portion of this program. Since incorporation of these valves into the ISI program, no specific valve leak test has been performed, rather an ongoing pressure monitoring program.
The (12) safety injection pressure isolation valves were evaluated separately for their safety function as pressure isolation valves as a resul t of USNRC letter to YAECo dated February 23, 1980.
They are, however, still monitored to ensure pressure isolation.
Safety injection loop isolation valves SI-V-18,19, 20 and 21 are verified closed bimonthly during the Operations Vapor Container Inspection.
These valves are monitored on the upstream side of the valve to detect any temperature change which would result from an inoperable isolation valve.
The remaining eight safety injection pressure isolation valves are monitored by means of a high pressure alarming device installed upstream of these check valves.
This provides additional assurance that a pressure isolation function is being performed.
The shutdown cooling pressure isolation valves are also verified to perform their function by an ongoing pressure monitoring program.
Bimonthly the temperature of the shutdown cooling system piping upstream of the pressure isolation valves are checked to detect any temperature change which would result from an inoperable pressure isolation valve. These valves are also containment isolation valves exempt from Appendix J 1eak testing per Technical Specifications.
Based on the above, these valves are categorized as type "A"
- valves, however rather than performing specific valve leak tests, Yankee intends to continue with the ongoing pressure monitoring of the systems which provides assurance of a pressure isolation function in accordance with ASME Section XI.
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Document No. 80A4721 g\\mg Page E3 of 29 W
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TREND ANALYSIS ON CONTAINMENT ISOLATION VALVES Yankee Rowe will not do a trend analysis on leak rate results from containment isolation valve testing (Appendix J) as the results are of little value. Yankee Rowe has been keeping leak rate results on individual valves in columnated form for six refueling intervals, with the intention of performing and utilizing a trend analysis. We have found, however, that by the nature of the testing, no useful data can be obtained.
Leak rates have increased by a factor of 300 (from a near zero leak to an acceptable leak) and back to near zero in three consecutive tests. The scatter in the data is extreme, and only a total summation of all leak rates would be meaningful. Acceptability of individual test results is something which is, and must be, lef t to the judgement of the test supervisor and can take into account such effects as volume, temperature, and leakage past he isolation valves.
CIV's will be included in the valve program for exercising only.
Leak rates will be determined and documented per Appendix J.
SAFETY VALVES There are 17 safety valves that fall under Section XI testing requirements at Yankee.
These valves are subjected to testing in accordance with l
Section XI and PTC-25.3-1976 to determine safety valve setpoints.
Since no fluid flow measurements or tests are performed, Yankee takes l
exception to the qualifications of the person supervising the test as i
outlined in ASME PTC-25.3-1976.
f As an alternative, at a minimum the person supervising the test shall have two years practical experience in safety valve setpoint testing and be certified at least a level II per ANSI N45.2.61976, in accordance with :.he Yankee Atomic Electric Company Quality Assurance Manual.
SOLEN 0ID VALVES The nature of solenoid valves renders the task of timing virtually impossible, and irrelevant, in ensuring acceptable valve performance.
Solenoid operated valves will be cycled, but stroke time will be neither specified nor measured.
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Document No. TUA4/21 P:ga E 4 cf 29 TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM:
Main Coolant DRAWING:
M-1 Station Code Code Exe rc i se Safety Valve No.
Class Catecory frecuency Position Remarks CH-MOV-525 1
Closure would secure main coolant bleed and cause chemical / volume control p rob l em s. Valve will be full stroked at cold shutdown. Valve control does not allow part s t ro k i ng.
MC-V-239 1
C CS Closed Main Loop check valves. Norma lly open, closure requi res shutdown of main coolant pump which MC-V-308 would cause plant shutdown. Valves will be MC-4-316 demonstrated to close during cooldown to cold MC-V-322 shutdown or heatup theref rom.
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TADLE E.1 INSERVICE TESTING REQUIREMENTS SYSHM:
Main Coolant DRAWING:
M-2 Station Code Code Exercise Safety Valve No.
Class Cateqory Frequency Position Remarks PR-MOV-512 1
B Qua rte rly Open Pressurizer solenoid relief isolation valve.
in compliance with code.
PR-SV-181 1
C 60 Months Open Pressurizer code safety valves in compliance with code.
PR-SV-182 SV-215A 2
A 60 Months Open Low pressure surge tank safety va lve.
Containment isolation valve leak test per
)
Appendix J i
PR-SOV-90 1
E Refueling Open Pressurizer solenoid operated relief valve.
Exercised open during refueling PR-TV-214 2
A Qua rte rly Closed Containment isolation Valve. Leak tested per Appendix J.
l VD-V-917 2
A Passive Closed Containment isolation valve.
Leak test per Appendix J.
Valve normally closed.
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TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM:
Cha rg i ng a nd Vo l ume Cont ro l DRAWING:
M-3 Sta t ion Code Code Exercise Safety Valve No.
Class Ca tego ry freauency Position Remarks CH-MOV-521 2
8 3 Months Closed in compliance with code CH-MOV-526 i
B CS Closed Bleed line isolation valve.
This norma l ly closed valve cannot be part stroked.
If this failed in the open position, control of the chemical / volume control system will be lost.
This valve will be full stroked at cold shutdown CH-MOV-527 1
B CS Closed Bleed orifice isolation valve.
This normally orien vaIve cannot be pa rt stroked, faiiure of this valve in the closed position would cause the loss of chemica l/ volume control.
)
l LCV-222 2
3 Months Closed Bleed line.
Containment isolation Valve.
Cycled same a s CHV-527.
Leak test per
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Appendix "J".
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CH-V-601 2
C 3 Months Open &
Charging pump check valves. Valves must open CH-V-603 Closed to allow flow through operating pump.
Must close when pump is off, in compliance with code CH-V-605
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CS Closed These normally open valves cannot be part
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CH-V-611 1
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stroked closed.
To test closure requires CH-V-611A C __;
shutoff of all cha rging flow.
Valves will LQ be tested during cold shutdown.
CH-V-611 Z
is a containment isolation valve which is exempt from leak testing por Plant Technical Specifications g
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Pa ss ive Closed Containment isolation valvo excmpt f rom CH-MOV-522 2
A Append ix J testing.
Locked closed.
8 Pa ss ive Closed Bleed line isolation valvo.
Electrically disconnected in closed position.
8 Pa ssive Open Charging Line isolation Valve.
Electrically disconnected in open position.
8 Open Primary Safe Shutdown System isolation Valve.
TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTLM:
Main Coolant Vent DRAWING:
M-84 Station Code Code Exercise Safety Valve No.
Class Cateqory frequency Position Remarks VD-TV-203 2
A 3 Months Closed Main coolant vent system containment isolation valve.
This valve will be exercised quarterly to code, but will be leak tested to Appendix J criteria, not Section XI FR-MOV-558 2
B CS Open Reactor, pressurizer vent va lves. Full stroke during cold shutdown PR-MOV-559 PR-MOV-560 PR-MOV-561
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TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM:
Shutdown Cooling DRAWING:
M-5 Station Code Code Exercise Safety Valve No.
Class Cateqory frequency Position Remarks SC-MOV-551 1
A Closed Shutdown cooling isolation valves.
These CIV's SC-MOV-552 Passive a re exempt from Appendix J leak testing per Technical Specifications. These valves a re SC-MOV-553 pressure isolation valves.
SC-MOV-554 SV-204 2
C 60 Months Open These relief valves are used only for low tempera ture over pressure protection ( L10PP).
SV-205 Requirements for LTOPP viii exceed Section XI requirements.
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INSERVICE TESTING REQUIREMENTS SYSTEM:
Safety injection DRAWINC:
M-7 Sta tion Code Code Exercise Safety Valve No.
Class Ca teao ry Freauency Position Rema rk s SI-TV-6014 2
B CS Open Accumulator nitrogen supply line trip valves.
Normally closed valves which open on a safety SI-TV-605 injection initiation signal. Opening of these e
SI-TV-606 valves during operation would pressurize the, accumulator in conflict with plant technical specifications. Valves will be exercised at cold shutdown.
SI-SV-1 2
B CS Open Accumulator safety valves. Solenoid actuated on low level, cannot be tested quarterly as SI-SV-2 accumulator cannot be taken out of service.
SI-SV-609 Valves will be'tsted at cold shutdown.
SI-V-11 2
C Pa rt St roke Open Low pressure safety injection (LPSI) pump SI-V-12 3 Months and discharge check va lves. Monthly run of SI-V-13 Full Stroke Closed LPSI pumps on recirculation part strokes Refueling valves. Full stroke can only be done at refueling as pumps do not have sufficient head to overcome RCS pressure.
SI-V-30
-2 C
Pa rt Stroke Open HPSI discha rge check va lves.
SI-V-31 3 Months and Same as SI-V-11, SI-V-12 and SI-V-13 SI-V-32 Full Stroke Closed Refueling
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TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM:
Safety Injection DRAWING:
M-7 Sta t ion Code Code Exercise Safety Valve No.
Class Cateaory Freauency Position Remarks t
SI-V-18 2
AC Refueling Open &
Si loop check valves. Cannot be pa rt stroked Closed or full stroked during operation as pumps do SI-V-19 not have sufficient head.
Can only be tested SI-V-20 when RV head removed. These valves a re SI-V-21 pressure isolation valves.
SI-V-51 2
C Pa rt St roke Open &
HPSI inlet check valve. Same as SI-V-33, 3 Months Closed SI-V-34 and SI-V-35.
Monthly run of HPSI pumps on recirculation pa rt strokes the valve, but.
Full Stroke full stroking only possible during refueling Refueling as pumps lack sufficient head St-MOV-518 2
B 2;
CS Open &
Safety injection tank outlet MOV cannot be part Closed stroked; or full stroked as failure in closed C".)
position results in loss of safety injection system function. Valve will be full stroked F--
at cold shutdown edC 2 >-
SI-V-698 2
C C10 - J Pa rt St roke Open &
Safety injection tank outlet check valve. Valve C 3 32; 3 Months is part stroked quarterly. full stroke is not possible quarterly as recirculation line is too L&. C 3 "2;
Full Stroke small and pumps do not have sufficient head to Refueling pump into reactor coolant system. Valve will be full stroked open at refueling CC C)
SI-V-663 2
A/C LL.
Refueling Open LPSI loop check valves. St roki ng is the same as for SI-V-18, SI-V-17, SI-V-20 and SI-V-21 These SI-V-664 valves are pressure isolation valves.
St-V-665 SI-V-666 SI-V-667 2
A/C Refueling Open LPSI loop check valves. Stroking is the same as fo r SI-V-18, S I-V-19, SI-V-20 and S I-V-21.
These SI-V-668 valves are pressure isolation valves.
SI-V-669 SI-V-670 SI-TV-608 2
8 CS Closed &
Accumulator nitrogen header trip valve. Cannot Open be part stroked; or full stroked quarterly as failure of the valve in the closed position would cause the loss of system function.
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Document No. 80At721 4
Page E 13 of 29 TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM:
Safety injection DRAWING:
M-7 Station Code Code Exercise Safety Valve No.
Class Ca tego ry f requency Position Remarks SI-V-36 2
C Refueling Open itPSI header check va lve.
Stroking is the same a s fo r SI-V-18, SI-V-19, SI-V-20 and SI-V-21.
SI-V-1'4 2
C full Stroke Open &
itPSI header check va lve.
This is a category A-C Open at Closed CIV, Appendix J exempt per Technica l Specifica-Refueling tions.
Stroking open is the same as SI-V-18, Ve ri fy SI-V-19, SI-V-20 and SI-V-21.
Closing is Closed veri fied qua rterly by di f ferentia l p re s su re.
Qua rte rly CS-V-621 2
C full Stroke Open &
This is a category Open at Closed A-C, CIV, Appendix J exempt per Technica l Refueling Specifications. Partial stroke open and full S t ro ke closed quarterly.
Full stroke open during Closed Cold refueling, closed cold shutdown.
Shutdown CS-V-622 2
C Refueling Open LPSI header check va lve.
Same stroking as for SI-V-18, SI-V-19, St-V-20 and SI-V-21.
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Document No. 80A4721 Page E 14/15 or 29 TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM:
Safety injection DRAWING:
M-7 Station Code Code E xe rc ise Safety Valve No.
Class Catenorv Frecuency Position Remarks SI-V-2 2
C Refueling Open Accumulator check va lve.
Cannot pa rt or fur I stroked quarterly as this would requi re taking pa rt of the safety injection system out of se rvice. Cannot be pa rt or fut i st ro ked a t cold shutdown as flow will be measured by a change in water level when flow is sent to 1.he refueling cavity.
St-MOV-1 2
B CS Open Accumulator outlet valve cannot be part stroked; O
and or full stroked qua rterly as this requi res taking Closed part of the safety injection system out of
_g service. Valve vill be full stroked at cold 4
shutdown.
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B CZ CS Open itPSI header isolation valve, open during and operation, but must be closed post LOCA for la g Closed hot leg injection.
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St-MOV-48 2
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CS Closed HPSI and LPSI recirculation va lves.
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must close on VC recirculation (post LOCA).
They cannot be closed quarterly because they mus* be La.
open for starting ilPSI and LPSI pumps. Valves r
l will be full stroked at cold shutdown.
Closed LPSI recirculation valve. This is a normally CS-MOV-532 2
8 Passive closed valve per Technical Specifications.
SI-Mov-5I4 2
8 3 Months Open Hot leg injection valves.
in compliance with code.
St-MOV-515 SI-V-646 2
C Refueling Open Hot leg injection check valve. Cannot be part or full stroked quarterly as head f rom HPSI putips is insufficient. Cannot be part or fuil s t ro k ed during cold shutdown as Technical Specifications-requi re securing itPSI and LPSI pumps to prevent' low temperature overpressurization. Valve vill be full stroked at refueling.
St-V.*
2 C
Refueling Open LPSI header check valve.
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I Document No. 90A4T21 Page E 21 of 29 TABLE E.1 INSERVICE TESTING REQUIREMENTS l
SYSI Eel:
Feeddater and Blowdown DRAWING:
M-15 Station Code Code Exercise Safety Valve No.
Class Cateqory Freauency Position Rema rks 1
BF-V-623 2
C CS Closed Main feed line check valves cannot be closed Open during operation as pertubation in reed flow BF-V-635 would cause a reactor trip.
Valves will be BF-V-647 verified to close at cold shutdown BF-V-659 Z
TV-471A 2
A 3 Months Closed CC)
Blowdown line trip valves Containment isolation valves
"-~
TV-401B b~~
Exempt from leak test per Technical TV-401C "UC Specifications TV-401D
>=
ZJ BF-CV-1000 2
A CS Closed c;) 77*.
Steam generator feedwater regulators Open g2, j Containment isolation valves Exempt f rom leak test per Technical Specifica-BF-CV-1100 g,
DF-CV-1200 tions.
Cannot be closed during operation as the BF-CV-1300 pertubation in reed flow could cause a reacto r Cg:
trip C
FCV-BF-1000A 3
B CS Closed Steam Cenorator Feedwater Regulators cannot be closed dering operaton as the pertubation in FCV-BF-1100B reed flow would cause reactor trip.
Valves FCV-BF-1200C will be verified to closo during cold shutdown FCV-BF-13000 WCBD-MOV-1001 3
B CS Closed feed isolation valves cannot be closed during operation as thc pertubation in reed flow would WCBD-MOV-1002 cause reactor trip.
Valves will be verified to WCBD-MOV-1003 close during enid shutdown WCl3D-MOV-1004 St-V-701 2
A Pa ss ivo Closed Seconda ry conta inment isolation valve.
Ex ernp t from Appendix J testing per Tech. Spec.
VD-V-1157 2
A Passive Closed Secondary containment isolation valve.
Exempt Open from Appendix J testing per Tech. Spec.
Also secondary side safe shutdown isolation valve.
CF-V-606 2
A Passive Closed Socorda ry conta inment isolation valve.
Exempt f rom Appendix J testing per Tech. Spec.
CF-V-607 CF-V-608 CF-V-609 O
80A!721 Document No.
4 Page E 22 of 29 TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM:
Puri fication and VC Reci rcula tion DRAWING:
M-16 Station Code Code Lxercise Safety Valve No.
Class Cateqory f reottency Position Remarks St-MOV-516 2
A CS Open &
VC reci rculation va lves.
Containment isolation Closed valves, exempt from Appeldix "J" test pe r T. S.
St-MOV-517 Must be closed for VC integrity, the re f o re cannot be stroked qua rterly. Must be open for post LOCA VC recirculation. Full stroke at cold shutdown PU-V-651 2
A Closed Containment Isolation Yalve, locked closed.
Appendix J tested.
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Document No. 80A4721 Page E 23 of 29 TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM:
VC Heating System DRAWING:
M-18 Station Code Code Exe rc i se Safety Valve No.
Class Cateoory Frecuency Position Remarks HC-TV-409 2
A 3 Months Closed '
Containment isolaton valves.
Leak test per Appendix J, not Section XI HC-TV-413 2
A 3 Months closed Containment isolation Valve leak tested per Appendix J, not Section XI 4
w t
4 t
Document No. 80A4721 Page E 24 of 29 4
TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM:
Service Water DRAWING:
M-19 Station Code Code Exe rc i se Safety Valve No.
Class Cateaory Frecuency Position Remarks SW-TV-408 2
A 3 Months Closed '
Containment isolation Valve.
Leak test per Appendix J, not Section XI i
i l
SW-TV-412 2
A 3 Months Closed Containment isolation Valve leak tsted to Appendix J, not Section XI I
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Document No. 80A4721 Page E 25/26 of 29 i
TABLE E.1 l
i INSERVICE TESTING REQUIREMENTS l
j SYSTEM:
Main Steam DRAWING:
M-20 Station Code Code Exe rc i se Safety Valve No.
Class Cateaory Frenuency Position Remarks NRV-405A 2
C CS Closed Nonreturn valves; cannot be fully stroked during operation because pertubation of steam NRV-405B flow could cause a plant trip.
Valves will be NRV-405C stroked 10% qua rterly.
NRV-405D
.h Nor-return valves; will be fully stroked during cold shutdown.
C r
4 TV-411 2
A 3 Months Closed 3 )g, Containment isolation Valve. Exempt f rom leak
- g,,j test per Technical Specifications y
OZ TV-406 2
A Qua rte rly Closed'd"CI.
Containment isolation valvo. Exempt f rom leak test per Technical Specifications
. p.
MS-V-627 2
A Pa s s i ve Closedj Seconda ry conta inment isolation valves. Main steam bypass. Exempt f rom Appendix J testing MS-V-628 g3, per Tech. Specs. MS-V-629 4 MS-V-630 l l AS-V-719 2 A Pa ss ive Closed Secondary containment isolation valves. Exempt f rom Appendix J testing per Tech. Specs, i. AS-V-720 ) i MS-MOV-659 2 A Passive Closed Seconda ry conta inment isolation valves. Exempt f rom Appendix J tests per Tech. Specs, MS-MOV-670 1 MS-MOV-681 l MS-MOV-692 i i SV-409A 2 A 60 Months Open Main steam code safety valves. Also secondary containment isolation valves. Exempt from J SV-4098 Appendix J testing per Tech. Specs. j SV-409C SV-409D i SV-409E SV-409F Sv-409c i Sv-409:e Sv-4091 I SV-409J l,',. SV-409K SV-4t'" a 4
i Document No. 80Afs721 j Page E 27 of 29 l i l TABLE E.1 INSERVICE TESTING REQUIREMENTS SYSTEM: Component Cooling DRAWINC: M-21 S ta t ion Code Code Exercise Safety Valve No. Cicss Cateqory rreauency Position Remarks CC-TV-205 2 A CS Closed Containment Isolation Valve. Leak test por i Appendix J, not Section 1. Cannot part s t ro ke, i or full stroke quarterly as this would shut 0f 0 3 cooling water to equipment requi red for opera-tion. Valve will be full stroked at cold i shutdown. 3 1 l CC-TV-208 2 A CS Closed Containment Isolation Valve leak tested to Appendix J not Section XI. Valve cannot be full stroked during operation as this would shut o00 cool ing wa ter to equipment required fo r j ope ra t ion. Valve will be full stroked during cold shutdown ] SV-227 3 A Passive Closed Component Cooling Surge Tank Sa fety Va lve. Containment isolation Valve leak tested per Appendix J. Z }
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Document No. 80A!4721 Page E 28 of 29 i l I TABLE E.1 INSERVICE TESTING REQUIREMENTS I SYSTEM: Fuel Handling j DRAWING: M-23 Station Code Code Exercise safety Valve No. Class Cateaory Frecuency Position Remarks HC-V-215 2 A C1osed Containment IsoIation VaIves. Leak test -per Appendix J, not Section XI. CS-CV-216 Locked valves, no exercise. CS-V-601 2 A Passive Closed Containment isolation Valve. Leak tested per Appendix J, not Section XI. I i i I 1 i i
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