ML19242C478
| ML19242C478 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 08/08/1979 |
| From: | Stallings C VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Harold Denton, Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| 332C-111776, NUDOCS 7908100464 | |
| Download: ML19242C478 (37) | |
Text
't Vruo1NIA E Luc ru n c AN n Pow n u CO>I PA NY H iemiou ri.Vi nois ir e num August 8, 1979 Mr. Ib rold R. Denton, Direc tor Serial No. 332C/111776 Of fice of Nuclear Reactor Regulation P0/ATV:scj Attn:
Mr. A.
Schuencer, Chief Docket No. 50-280 Light Water Reactors Branch No. 1 License No. D PR-3 2 U.
S. Nuclear Regulatory Commission Washington, D. C.
20555
Dear Mr. Denton:
CorrectLons to the Requested Relief from Inservice Inspection and Testing Requirements Surry Power Station Unit No. 1 Pursuant to 10 CFR 50.55a(g), the Virginia Electric and Power Company subnitted its programs for inservice inspection and testing of pumps and valves for the last forty nonth period of the first ten year interval for Surry Power Station Unit 1 on !!ay 17, 19 79.
Af ter another careful review of the valve testing por-tion of that submittal, it uas found to have typographical errors and omissions in the valve testing portion of that sub aittal. The corrections are outlined in Attachment A and a page for page replacement of Attachment C of our letter, Serial No. 332B/111776, titled " Requested Relief from the Inservice Testing Requirements for valves as set forth in subsection IWV to Section XI of the AS'!E Boiler and Pressure Vessel Code, 1974 F41 tion with Addenda thru the summer of 1975 (last 40 nonth perial of the first 10 year interval)" may be found in Attachment B.
Very truly yours,
-)
-s 6
i) l..
OMc cc,L.) J C. M. Stallings Vice PresidentPower Supply and Production Operations Attachments A Surry Unit 1, Details of omissions and typographical errors in the original Requested Relief from Inservice Testing Require-ments of Valves as set forth in the Subsection IWV to Section XI of the ASME Eoiler and Pressure Vessel Code, 1974 Edition with Addenda thru the Summer of 1975 (last 40 nonth period of the first 10 year interval).
B Surry Unit 1, Requested Relief from the Inservice Test ing Require-nents of Valves as set forth in Subsection U.'V to Section XI of the AS'IE Boiler and Pressute Vessel Code, 1974 Edition with Addenda thru the Summer of 19 75 (last 40 month period of the first 10 year in te rval).
u.,,"., t Mc,
' ' v 7908100467
ATTACINE!TP A Su r r y l'n i t 1 Details of emissions and typographical errors in the original Requested Relief fron Innervice Test ing Requirenents of Valves as set forth in Subsection Xi of the ASME Boiler and Pressure Vessel Code, ITT4 1:dition with Adder.da thru the Summer of 19 75 (last 40 nonth period of the first 10 year in t e rval )
1.
Page 1 - Valve testing requircnents for TV-MS-109 6 TV-MS-Il0 is as shown as CV.
Should be EV since these valves are trip valves on steam drains.
2.
Page 1 - NRV-MS-102A,B,C should read NRV-MS-101 A,B,C.
3.
Page 2 - Omission of relief request for 1-VP-12.
This valve is normally closed during Reactor operation and renains closed during an accident.
Add the relief request #26.
4.
Page 12 - Onission of stroke tine from test requirements f o r TV-SS-104A, B.
Add EV 6 ST in Test Required colunn.
5.
Pago 13 - omission of exercise valve and stroke tino from test requirenents for TV-VC-109B.
Add EV & ST in Tes t Required column.
6.
Page 15 - Omission of vcives MOV-CS-100A, B.
7.
Page 16 - Omission of relief request for EV 6 ST.
This valve is normally closed during reactor operation except for lagging procedures.
Refer to request #26.
8.
Pa ge 17 - Onission of relief request for CV f or 1-RC-160.
This valve is normally closed and remains closed during an accident.
Refer to request
- 26.
9.
Page 26 - Typographical error for number of rel ie f request.
Change 27 to 24.
10.
Page 27 typographical error for number of relief request.
Change 26 to 23.
11.
Page 27 normal position for 1-SI-234 is closed verses open.
Also relief request omitted.
1-SI-234 is nor.nally closed and renaine, closed during accident.
Refer to relief request #26.
12.
Add relief #26 to page 3 of requests as fo.
Valve is normally closed during reactor operation and is requireu
.a remain closed during an accident.
Valve will be le d: tested during each Refueling Shutdown.
7 yn.c-bo
.Li
_ ATTACHMENT B Surry I'ait 1 Requeste1 Relief from the Inservice Testing Requirements of Valves'Its set forth in Subsection IWV to Sectio TX1 of_
the AS3 F, oiler and Pressure Vessel Code, 19 74 Ed i t ion with Addenda thru the Summer of 1975 (Ic.;t 40 month period of the first 10 year interval) c_
- n
- c. o Lo. w w L 9
ATTACIDfENT C SURRY UNIT 1 REQUESTED RELIEF FRO:t THE INSERVIC E TESTING REOUIR E'1F'if S FOR VALVES AS SE E FORTil IN SUB"ECTION IWV TO SECr[0N XI CF THE ASSH: BOILER AND PRESSURE VESSEL CODE, 19 74 EDITION WITH ADDEMDA THRU THE SUMMER OF 19 / 5 (LAS T 40 MONTil PERIOD O? Tile FIRST 10 YEAR INFER \\ AL)
The enclosed tabula tion provides a listing of the Class 1, 2 and 3 valves which are subject to the testing requirenents of Subsection IWV of Section XI of the ASME Hailer and pressure Vessel Code, 19 74 Edit ion, with Addenda thru the Sonner of 1975.
This tabulat ion identifies the valve to be teste l, drawing location, function, code class, category, s ize, valve type, actuator type, normal position and test requirements.
Relief from test requirements is requested in cases where t h e r.e test requirements have been deternined to be impractical.
Where relief is requested, technical justification is provided along with alternative test nathods when applicable.
Leak testing of containment isola tion valves shall be pe rforned in accordance vitt Appenitx J of 10CFR50 f.n 1 teu of AS'!E Sect ton XI subsub-a rt Ic1 IWV-3420.
There are no testable Category D valves in Surry Unit 1 Systems.
Any inspection requirenents identified as impractical during, the cours' of the inspact ion period will be note ad included in the inspact'on progran at the time of the next revle.on.
Uh n one valve in a redundant cafe ty rela ted systen is found inope rable during testing, nonredundant valves in the remaining train will not be cycled as procedures require but wil l be c ycl ed a f t e r t he first inoperabic valve in the systen is returned to nervice.
This valse tes t ing progran add ressen those valves for which deaonstration of operability is necessary to assurc safe shutdown of the unLt or nitiga tion of the cone.equences of an accident. The progran has been reviewed to assure that testing the valves at the intervals specified will not place the plant in an unsafe ecnditio<.
Where practical, valves will be cycled at 3 nonth test intervals.
When a conmitment is made to test valves during hot or cold shutdown it is not intent to shutdown the uait solely for the perpose of valve testing nor to perforn the testinp, nore of ten than once oer 92 days due to more frequent s hu tdowns.
The follouing clarificathn shall apply to those valvas which are sched ul ed to be exercised during e aid shutdown:
" Valve testing shall commence not later than 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> after reaching cold shutdoun and continue until complete or unit is read y to return to power.
Completion of all valve testing is not a pre r e quisi te to return to power."
-y.
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SURRY UNIT 1 INSERVICE TESTING AS"E CODE CLASS 1, 2 AND 3 VALVES LEGEND TESP REQUIRE 3E.TfS SP - SETPOINfS of safety arid relief valves shall be tested per Section XI subsubarticle IWV-3510 or as nodified by specific relief request.
V - VALVE POSITION chall be verified [.ar Section XI subarticle IUV-3700 or as modified by specific relief request.
CV - CHECK VALVES shall be exercised at least once every (3) nonths per Section XI subsubarticle IWV-3520 or as modified by specific relief requeat.
LT - LEAK TESTS shall be perf arned per Section XI subsubarticle IWV-3420 or as nodified by specit ic relief request.
EV - EXERCISE VALVE f or ope rab Llity a t least once every (3) conths per Section XI subsubarticle IWV-3510 or as modified by specific relief request.
ST - STROKE TIMES shall be neasure i per Section XI subsubarticle IWV-3410 or as r.odified by specific relief request.
VALVE p0S[TIONS VALVE TYPES ACTUATOR TYPES O-Open CE-Check SA-Self Actuating C-Closed R E-Re l i e f MO-Motor OC-Open o r Cl osed S F-Sa f e t y PN-Pne una t ic T-Thrortied BA-Bal1 f rJ-Ha nd wh e el CL-Clobe CA-Cate BU-Bu t t e r f l y SCK-Ftop Check PL-Y1ug 3 0, o,e vu v t.
SURRY UNIT 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES SYSTDI NAME MAIN STEA5!
DRAN.NO.
I1448-FM-64A PAcg 1 VALVE DRM.
CODE CATE-SIZE VALVE ACTUA-SORMAL TEST RELIEF ND!BER LOCN.
FUNCTION CLASS GORY (IN.)
TYPE TOP POSI-REQ.
REQ'.*ES1 TY P T*
TTON SV-MS101A,B,C B-3,B-4,B-6 "ain Stean Safety Valves 2
C 4
SF SA SP No SV-MS102A,R,C C-3, C-4, C-6 Ma in Stean Sa fe ty "alves 2
C 6
SF SA C
SP NO SV-MS103A,B,C B-3,B-4,B-6 S V-MS 104 A, B, C B-3. B-4. B-6 SV '!S105A,B,C C-3,C-4,C-6 TV-MS101A,E,C D-3,D-5,D-7 Main Steam Line Trip Valves 2
B 30 CK PN O
EV YES ST (1)
PCV-MS102 F-8 Main Stean to Turbine Driven 3
B 3
GL PN C
EV NO Auxiliary Feedwa ter Punp ST MOV-MS 102 G-8 Main Steam to Turbine Driven 3
B 3
CA MO C
EV NO Aexiliary Feedwa ter Pump ST l-MS-176,178, F-8, F-8, F-S Main Steam to Turbine Driven 3
C 3
CK SA C
CV NO 182 Auxiliary Feedwater Pump Check Valves NRV-MS101A,B,C D-3,D-5,D-6
!!a in S t eam Non-Re tu rn Val ve s C
30 SCK MO O
CV YES (1)
TV-M3109 F-7
!A n Steam Drain to B
3 CA PN O
EV NO Condenser ST TV-MS110 E-7
!hin Steam Drain to B
2 GA PN O
EV NO Bloud oua ST (r.',
I) 3 Li
SURRY LTIT 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES SYSTD! NAME AUX. STEAM & AIR REMOVAL DRAW.NO.
Il440-FM-66A PACE 2 VALVE DRAW.
CODE CATE-SIZE VALVE ACTUA-NORAL TEST RELIEF NDi3ER LOCN.
FUNCTION CLASS GORY (IN.)
TYPE TOR PCSI-REQ.
REQUES" TYPr T T O';
TV-SV102 L-2 Air Removal 'Hvert A
6 GA PN C
LT N0 to Reactor Containment EV ST 1-VP-12 L-1 Air Removal Divert AC 6
CK SA C
LT Yes to Reactor Continnent CV (26) r ta f;
c 9
w -
SURRY L"CT ]
INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES SYSTF!! NAyr FEEDWATER pnja, *:0, 11443-F!i-68A pAcn 3 i
VALVE D RA'i.
CODE CATE-SIZE VALVE ACTUA-NORMAL TEST I ' r.LI E F NL'MLER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUEST TYPr
~ T O's 1-F'.7-2 7, 5 8,89 C-2,3-4,B-5 Auxiliary Feedwater Header 2
C 3
CK SA C
CV YES Cneck Valves at 5tt in (2)
Feedwater Header 1-FW-10,12, C-2,C-2 Sin Feedwater Check Valves 2
C 14 CK SA 0
CV YES 4i,43, C-4,C-4, at Containment Pe ne t ra t io ns (3) 72,74 C-5,C-5 MOV-F'.1151 A, B, C,
B-6,B-6, Auxiliary Feedwa ter to 3'
B 3
GL MO O
EV NO D,E,F B-6,B-6, Steam Generators ST C-6, C-6 1-n?-131,133, C-6, C-6,
Auxiliary Feedua ter Header 3
C 6
CK SA C
CV YES 136,13f C-6,C-6 Check Valves at Containment (2)
Penetration 1-Rl-142,157, D-7, E-7 Auxii. ary Feedwa ter Punp 3
C 6
CK SA C
CV YES 172 F-7 Dischary,e Check Valves (2)
(~
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SURRY UNIT 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES SYSTEM NAME CROSS-CONNECTS FOR AUXILIARY FMED DIL%'. NO.
I 144 8-F3f-6 g g PAGEA VALVE D Pa%'.
CODE CATE-SIZE VALVE ACTUA-l NORMAL TEST lP". LIEF
- NUMBER, LOC".
FJNCTION CLASS GORY (IN.)
TYPE TOR POSI-REQ.
REQUESI TYPE T T a':
p __
MOV-FW 160A, B J-5,J-6 Cross-Connects for Unit No. I 3
B 6
CL
.:0 C
E!
No
+
Aux. Fe ed f r om Un i t No. 2 g,a l
l l-FW-272,273 I-7,I-7 Cross-Connect for Unit No. 1 3
C 6
CK SA C
CV VES Aux. Feed f ron Unit No. 2 (2)
Check Valves at Cont. Pe ne t.
l 1-FW-3 09, 310 H-7,H-7 Cross-Connect for Unit No. 1 3
C 6
CK SA C
CV YES Aux. Reed f ron Unit No. 2 (2)
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SURRY UIT 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND : VALVES
- YSTEM NAME SERVICE WATER DRiE NO.
I 144 8-F'!- 71 A PACE 5 I VALVE ACTUA-NOR"AL TEST RELIEF VALVE D PuW.
CODE CATE-JIZE NO'3ER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUESI TYPP TTON MOV-CN106A,B, E-4,E-4, Condenser Inlet 3
B 96 BU MO O
EV NO C,D P-4,F-4 Isola t ton V,ilve >
ST MOV-SW102A,B E-6,F-6 Service Water to Component 3
B 42 BU MO O
EV NO Cooling Wa ter IIent Exchangers ST MOV-SW 10 3 A, B,
B-6,B-6 Se rvice Wa te r t o Rec trcula-3 B
30 EU MO C
EV YES C,D D-6,E-6 tion Spray Hea t Exchangers ST (4)
MOV-SW104 A, B,
A-2,B-2,C-2, Recirculation Spray Heat 3
B 24 BU MO O
EV NO C,D C-2,A-2,A-2, Exchangers Isolation Valves ST MOV-SW105A,B, B-2,C-2 C,D MOV-SW106A,B D-4,D-4 Recirculation Spray Heat 3
B 36 BU MO O
EV NO Exchangers Cross Connect ST Valves MOV-SW101A,B B-4C-4 Bearing Cooling Water 3
B 36 BU M0 O
EV NO Heat Exchanger Isolation ST valves U
td (O
r; 3
Q
T 6
FS EE I U O
O E
LQ N
N C
EE A
RR P
T SO V
V EE C
C
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MI C
C R S n' O
O OOT NPT B
1 7
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4 4
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C AT V
)
2 2
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C N
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AO E
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R A
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3 3
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I C
S v C
T e
l C
p g pA E
N mr mV M
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F Ph Pk A
T c
c A
gs ge W
ni nh iD iC E
g g
C rp rp I
am am V
h u h u R
S GN I
T A
6 8
L NN U
AC C
RO C,
C, R
DL 6
8 I
C D
D 2
3 5
0 J);
ER 7
1 E
VE r r t (
M LB 4
3 A
A' 6
1 N
VD 7
1 N
C W
O C
S T
S 1
1 Y
S
SURRY INIT 1 I:: SERVICE TESTING ASMC CODE CLASS 1, 2 AND 3 VALVE 1 SYSTO! SAME C0'!PONENT
_'00 LING WATER DRA'd. N0.
I l443-FM-72 A PAcg 7 VALVE DRAN.
CODE CATE-SIZE VALVE ACTUA-NORMAL TEST RELIEF NUMBER LOCN.
FUNCTION
" CLASS CORY (IN.)
TYPE TOR PCSI-REQ.
REQUESI TYPP T T G'?
RV-CC119 A,B L-2,L-3 Component Cool i.ng from RP.R j
C 1
RE SA C
SF NO IIen t Exchan,.;e r Relie f Valve 1-CC-176,177 B-1,B-1 Component Cooling to RilR Ibat 3
C 18 CK SA OC CV YES Exchanger Check Valves (5) 1-C C-1, 5 8, 59 A-2,A-2,A-2 Component Cooling to Reactor 3
C 6
CX SA O
CV YES Coolant Pumps (6)
TV-CC105A,B,C D-8,D-8,E-8 Coc.ponent Cooling from 3
B 6
BA PN O
EV YES Reac tor Coolant Pumps ST (6)
TV-CC107 D-8 Component Cooling from 3-B 2
GL PN O
EV YES Reac tor Coolant Pumps ST (6)
TV-CC 109 A, B F-8, F-9 Component Cooling f rom 3
3 18 BU PN O
EV NO RiiR I? cat Cxchangers ST r.-
t ::
(
r-vf s
SURRY UNIT 1 INSERV'CE TESTING ASME CCDE CLASS 1, 2 AND 3 VALVES 8
SYSTE!' Nf3!E COMPONENT COOLING DRAW.NO.
I1448-FM-723 PAGE VALVE D RA's'.
CODE CATE-SIZE VALVE ACTUA-NORMAL TEST RELIEF NUMBER LOCN.
1' UNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUESS TYPr
'r T O'?
l-CC-242,233, C-4, E-4, I-4 Component Co al i n;, to 3
C 6
CK SA O
CV YES 224 Reac t o r Co n t a inmen t (7)
Air Recircuh t ion Coolers TV-CC110A,B,C D-3,F-3,H-3 Component Cooling from 3
B 6
BU PN 0
EV No Reactor Containment Air ST Recirculat ion Coolers RV-CCll2A,B,C E-5, F-5, G-5 Component Cooling from 3'
C 3, 4 RE SA C
SP "1
{
Reactor Containment Air Rectre. Cnol e rs Relie f
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( )
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FS 9
EE I "
O E
LQ N
G EE A
RR P
T SQ P
EE S
TR I
LGm I
R' S C
OOT NP?
C 2
7 A
U r
A 1
TRP S
3F COY ATT 8
k 4
4 EE VP E
1 LY R
I AT V
4
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)
3 E
ZN I I S(
O C
N EY TR S
AO E
U V
A CC L
R A
D V
S 3
3 ES C
'_TA S
T. T E2 N
UE1 l
C ee YI S uv RVS Fl RRA a
UEL oV S SC t
N f
I E N
ge D
O ni O
I il C
T E
l C
oR E
N o
f 3
U C.,
S F
r A
t e nl e o no oC p
mt oi G
CP N
I L
O O
l C
T Y.
E 4
EN N
C O
I P
RO DL 3
O' C
I ER VE A
L3 l
'. so 1 )
l A
A ?
N Vt l
t,
6 N
C 1
C
'E T
V S
R Y
S
SURRY UNIT I INSZRVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES 10 SYSTD: NAME COMPONENT COOLING pgAy, go, 11448-FM-72D Pl.G E VALVE D R.W.
CODE CATE-SIZE VALVE ACI'UA-
';0 R'GL TEST RELIEF NUMBER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUEST TYPF
"' T O';
l-CC-557,563 C-2,C-2 Compcaent Cooling Pump 3
C 18 CK SA OC CV NO ri sc h.i r;;e Check O
t t
[.
3
.:2 I
T 1
FS 1
EE I U E
LQ O
G EE N
A RR P
T SQ V
EE C
TR LA -
MI RS O' CO OT O, P T
^
1 3
A U
r A
M TRo S
F COY A TT 8
4 4
EE l
VP K
I LY C
AT V
)
2 E.
1 ZN I I S(
O N
EY C
TR S
AO E
W V
A CC L
R A
D V
S 3
ES 3
TE2 IT T
LE1C YIS RVS g
RRA n
UEL ik S SC l c N
oe I E N
oh D
O CC O
I C
T t e C
t ;
E N
P r; M
U a
S F
1 b A
e e un Fi G
D N
t I
ng L
e n O
p u O
SP C
T I
P L
EU F
WN 7
AC T
RO E
N DL E
7 P
S D
ER E
VE 1
M L3 1
Jsy\\
A A'0 t r6 I
- w N
V1 9
N O
C F
T S
1 Y
S
SURRY UN'T 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES SAMPLING SYSTI'M NA".,
DRAN.NO.
11448-FM-82B PAGE 12 YALVE DRAW.
CODE CATE-SIZE VALVE ACTUA-NO TM.L TEST RELIEF N"'GE R LOCN.
FUNCTION CLASS GORY (IN.)
TYPE TOR POSI-REQ.
REQUEST TypF TTnv TV-SS103 E-1 Fesldual Heat Removal 2
A 3 /1 CA PN OC LT NO Sys tem Sanple EV ST TV-S S 100A,B D-1,E-1 Pressurizer Liquid 1
A 3/8 GA PN OC LT NO Space Sample EV ST TV-S S 101 A,B D-1, E-1 Pressurizer Vapor i
A 3/8 CA PN 00 LT NO Space Sanple EV ST TV-S S 10 6A,B D-2,E-2 Primary Coolant Hot 1
A 3/8 GA PN OC LT NO Leg Sanples EV ST TV-SS102A,B D-2,E-2 Primary Coolant Cold 1
A 3/3 CA PN OC LT NO Leg Samples EV ST TV-SS104A,B D-2,E-2 Pressurizer Relief Tank A
3/8 CA PN OC LT NO Cas Space Sanple EV ST 4
(?
t f 3 i
9 d e
SURRY UNIT I INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES SYSTD' NAME VENTS & DRAINS pg,w, go,
11448-FM-83A pagg 13 YALVE DILW.
CODE CATE-SIZE VALVE ACTUA-NORMAL TEST RELIEF ND!BER LOON.
FUNCTION CLASS GORY (IN.)
TYPE TOR
?CSI-REQ.
REQUESI TYPr
"'T O N TV-i)A100B A-8 R. C. Sump Pump A
2 CA PN OC LT NO Disc 11a rge Isolation EV ST TV-DG108B A-3 Pr. Dr. Transfer Pump A
2 GA PN OC LT NO Disch. Isola t ton EV ST TV-VG1093 A. 1 Cas Vent IId r. Isolation A
2 CA PN O
LT NO EV ST tu f0 i
s
- .9
T 4
FS 1
EE I U g
LQ O
O O
c EE N
N N
A RR p
T SQ EE TVT TVT TVT TP LES LES LES LA -
MI
?
RS O' C
C O
O O
OOT NPT 3
3 A
8 U
N N
N
-M TRP P
P P
F COY ATT 8
4 4
EE 1
VP A
A LY G
G 1
AT V
)
E 2
2 2
ZN I I S(
O N
EY A
A A
TR S
AO E
M V
/
CG L
R A
D V
S 3
ES G
TE2 I T U' E1 C
YI S RVS no RRA p
i UEL m
t S SC n
u
~a N
o P
l I E N
o i
D O
t r n s
O I
oa eo I
C T
ml f i C
u c st E
N P s na r
U I
al d
S F
p r o H
A me T s ug I
tn S r a
r.
e h
Dh V
C c c
s
.s s
. i ri a
RD PD G
S N
I A
R D
UN AC S
RO T
LL N
3 5
2 E
V I
L L
ER E
E V. B A
A A
M I
0 8
9
' u)
A AT 0
0 0
N Vl Ct 1
1 1
I !
v S
A G
G M
D D
V E
T V
V V
S T
T T
Y S
SURRY LT.T I INSERVICE ".'ESTING ASME CODE CLASS 1, 2 AND 3 VALVES YSTEM NavF CONTAINMENT & RECIRCULATION SPRAY DRA'd. NO.
Il448FMS4A PACE 15 VALVF D RA'd.
CODE CATE-SIZE VALVE ACTUA-
';CRMAL TEST RELIEF NUMBER LOCN.
FUNCTION CLASS GORY (IN.)
TYPE TOR POSI-REQ.
REQUESI "YPF TTn' MOVRS155A,3 F8,FS Recirculation Spray Pump 2
A 12 PL MO O
LT
!!O SuctLon from Containment Sump EV ST MOVRS156A,B F6,F6 Recirculation Spray 2
A 10 CA M0 O
LT NO Pump Discharge EV ST 1RS11,17 F6,F6 Recirculation Spray Pump 2
CV YES Discharge Check Valves LT (8)
MOV-CS100,A,B I-4,I-4 Containment Spray Pump 2
B 12 GA M0 O
EV
!0 Suct Lon from R'.JST ST MOVCS101A,B, F2,F2, Containnent Spray Pt mp 2
A 8
CA M0 C
LT NO C,D F1,F1 Discharge EV ST 1CS13,24 E2,El Containment Spray Pump 2
AC 3
CK SA C
CV YES Discharge Check Valves LT (8)
MOVCS102A,B J3,K3 Chemical Addition Tank 2
B 6
CA M0 C
EV N0 to R'1ST Isola t ton Valve ST C'
t0 C.;
r:
SURRY UNIT 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES syg7... NAME CONT. VACUDI & LEAKAGE MONITORING 11448-FM-35A 16 DPaW.NO.
pggg VALVE DRE'.
CODE CATE-SIZE VALVE ACTUA-NC R'GL TEST RELIEF ND:BER LOCN.
FUNCTICN CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUEST
- ype mi n':
TV-L'1100 A, B E-3,E-3,E-3, Open Pressure Systen A
3/8 CA PN C
LT NO C,D,E,F,G,H E-3, E-3, E-3,
Isolation EV D-3,E-3 ST TV-Ut101A,B H-- 4, I-4 Closed Pressure Systen A
3/3 GA PN C
LT NO Isolation EV ST HCV-CV100 J-5 Cont. Vacuum Air Ejector A
3 GA PN C
LT NO Isolation EV ST TV-CV-15 0A, B,
H-7,H-7, Cont. Vacuum Pump A
2 CA PN O
LT Y[S C,D H-8, H-S Suction Isola tion EV (26)
(~
LD
-~O O
v1 0
SURRY UNIT 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES 11448-FM-86B SYSTEM NAMF REAC COR COOLANT DRAW.NO.
PACE VAL'J E D rah'.
CODE CATE-SIZE VALVE ACTUA-NORMAL TEST RELIEF ND'2ER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUESI TYPF T T O'?
SV-1551A,B,C F-4,C-4,H-4 Pressurizer Safety Valves 1
C 6
SF SA C
SP NO TV-1519 A A-6 Prinary Grade Water to A
3 CA PN C
LT NO PRZ Relief Tank EV ST 1-RC-160 D-6 Primary Grade Water to AC 3
CK SA C
LT YES PRZ Relief Tank CV (26)
CI re (2
cp C'.
p
SURRY US:.T 1 INSERVICE TESTING AS?!? CODE CLASS 1, 2 AND 3 VALVES 1144 8-F!!-8 7A 18 sys7ty; gay:e RESIDUAL HEAT RDIOVAL DRNJ. NO.
pggg VALVE DRAN.
CODE CATE-SIZE VALVE '\\CTUA-SOR"AL TEST RELIEF N1'!:BER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUESI Type Tin's MOV-1700,1701 H-7,H-7 RHR Suction f rom Reactor 1
3 14 GA M0 C
EV YES ynten ST (9 )
Coola n t c MOV-1720A,B K-5,K-5 R!lR Discharge to Reactor 1
B 10 CA M0 C
EV YES Coolant System ST (9 )
RV-1721 I-4 RHR Systen Relief Valve 2
C 3
RE SA C
SP YES (10) 1-RH-5,11 D-6,3-6 RHR Pump Disc!nrge Check 2
C 10 CK SA C
CV YES Valve (11)
(' r t :J f3 c
(.'
('
~
9 FS 1
EE 0
I L O
E LQ 4
C EE A
RR P
T SQ V
EE C
TR LA -
MI "
RS n 0
OOT NPT A
3 8
A U
F A
M TRp S
F COv S
I1 Tr 4
4 t E 1
VP K
LY C
1 AT V
)
2 E
- 7. N II S(
EY C
S TR E
4 AL V.
Y CC R
n D
V S
3 3
ES G
DA ND OL I N CC 1TAS TE2 I T N
UE1C p
YI S m
RVS u s RRA P e UEL v
S SC rl N
ea I E N
f V D
O O
I nk C
T ac C
r e E
N Th M
L J
C S
O F
d A
R i e T
c ;
N A
r, O
a C
ch i c E
r s 5
oi U
BD L
OV D
NA L
A 7
WN C
C 1O D
I I
C DL I
7 H
C C
Es
!E_
V 'E 2
0 L3 9,
/
A:
6
. usa t r4 f, '.
'e N
VD
=
7 N
O i
l C
T S
l Y
S r
SURRY UN J 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES SYSTPM N.'EE CHD1ICAL AND VOLUME CONTROL DRE'. NO.
Il443-FM-833 pagg 20 CATE-l SIZE VALVE DRAU.
CODE VALVL
'CTUA-N 0'C M L TEST RELIEF NL7!3ER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUESS TvPF T T n' 1-CH-258,267, D-6, F-6 Charging Puap utscharge 2
C 3
CK SA OC CV NO 276 G-6 Check Val ve LCV-I ll 53, D C-9, C-9 Charging Pump Suction from 2
S 8
CA MO C
EV NO Refueling Uater Storage Tank ST LCV-lll5C,E H-3,H-3 Charging Pump Suction from 2
B 4
GA MO O
EV YES Volume Control Tank ST (12)
MOV-1275A,B,C
!>- 6, F-6, H-6 Charging Panp Recircula tion 2
B 2
GA MO O
EV NO Flow Pa th 1 solation ST MOV-1373 F-5 Charging Pump Recircula tion 2
B 3
C\\
MO O
EV YES Header Stop Valve ST (13)
MOV-1331 A-3 Reac tor Cool ant Pump Seal 2
A 3
CA MO O
LT YES Water Raturn EV (14)
ST C'
?~
f3
!,=
SURRY UNIT I INSERVICE TESTING AS3"'. CODE CLASS 1, 2 AND 3 VALVES SYSTrl! NAMF CIII}tICAL AND VOLik!E CONTROL DR,W. 50.
11448-FM-8SE 21 PACE VALVE DRAW.
CODE CATE-SIZE VALVE ACTUA-NOR':AL TEST RELIEF ND1BER LOCN.
FUNCfION CLASS GORY (IN.)
TYPE TOR POSI-REQ.
REQUES"
-vpv Tmy TV-1204
.A - 3 Reactor Coolant Systen 2
A 2
GA PN O
LT YIS Le td own Isola t ion Trip Valve EV (15)
ST RV-1209 F-> l Reactor Coelant Systen 2
C 2
RE SA C
SP NO Le tdown Relief Valva nV-1257 H-1 Volume Control Tank Rei tef 2
C 3
RE JA C
SP NO Valve MOV-1289 A B-5 Normal Cha*ging Header 2
A 4
GA M0 O
LT YES Isolation EV (16)
ST MOV-12 S9 B B-5 "ornal Charging Header 2
B 4
GA M0 O
EV YZS Isola t ion ST (16)
FCV-1160 A-3 RCS Loop Fill IIeade r 1
A 2
GL PN C
LT TIS Is ola t ion EV (17)
C' ta
(:n ed
SURRY UNT.T 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES
'YSTD! NM'E CHEnfICAL AND VOLLSIE CONTROL DRAW.NO.
II443-FM-880 pac 22 VALVE DRAW.
CODE CATE-SIZE VALVE ACTUA-NOIO*AL
~EST EELIEP
?:r3ER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQL'ES ~
ryng Ti n':
RV-1203 H-1 Le tdova Header Relief 2
C 2
CK SA C
'0 HCV-1200A,B,C H-2,
H-2, Letdown Or ifice Isolution 2
A 2
CA PN OC LT N0 11 - 2 EV Si
,3 1-CII-309 J-3 Normal Charging Header
'2 AC 3
CK SA 0
LT YES Isol.i t ion CV (16) e tJ s
.1 9
- F
SURRY UNIT 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES gyg7g,ggge SAFETY INJECfl0N DRAW.NO.
I1448-FM-89A PAGE 23 VALVE DRAW.
CODE CATE-SIZE VALVE ACTUA-NORMAL TEST RELIEF Ni'Mn :R LOCN.
FUNCTION CLASS GORY (IN.)
TYPE TOR POSI-REQ.
REQUESI TVPr T T ON' MOV-18 6 0A, B B-8, E-3 Low IIcad Safety Injection 2
A 12 CA M0 C
LT NO Punp Suct ion f ron Contain-EV ment Sunp ST l
1-SI-56,47 C-8,
F-8 Lou IIead Safety Injection 2
C 12 CK SA C
CV YES Pump Section from Contain-(13) ment Sump Check MOV-1862A, B G-9, C-8 Low Head Safe ty Injection 2
B 12 GA MG 0
EV-NO Pump Suction f rom Re fueling ST Uater Storage Tank 1-SI-46A, B G-9, G-8 Low 11ead Safe ty Injection 2
C 12 CK SA C
CV NO Pump Suction f rom Re fueling Watar Storage Tank Check 1-SI-2 8, 50
- 7, G-7 Low I? cad Safe ty Injection 2
C 10 CK SA C
CV NO Pump Discharge Check 10V-1363A, B Fe6, G-6 Low Ticad Safe ty Injection 2
B 8
CA M0 C
EV NO Pump Dischrge to filgh liend ST r-Safe ty Injec tion Pump Suct ion t:
MOV-1885A, B, I C-7, G-6, Low !! cad Safety Injection 2
B 2
GA MO O
EV NO C,
D G-6, C-7 Pump Recircula tion to ST Refueling Water Storage Tank 1-SI-61, 53 C-6,
G-6 Low D,ad Sa fe ty Injection 2
C 2
CK SA C
CV NO Punp Recirculation to Refueling Water Storage r
SURRY UNIT 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES SAFETY INJECTION YSTEM NAME DRAW.NO.
11448-FM-89 A PACE 24 VALVE DRAW.
CODE CATE-SIZE VALVE ACTUls-NORMAL TEST RELIEF NU'13ER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUESI TYPF TT ON' MOV-1864A, E D-6, G-5 Lou IIead Sa fety Injection 2
B 10 GA M0 O
EV NO Punp Dischrge to Reactor ST Coolant Sys ten Cold Legs RV-184 5A,
B, C
C-6, D-5 Low Head Safe ty Inject ion 2
C 1
RE SA C
SP NO C-5 Flow Path Re1ief MOV-139 0A, B B-6,
B-5 Low Ilead Safe ty Injection 2
AF 10 CA M0 C
LT NO to Reactor Coolant System EV Hot Legs ST VP MOV-189 0C B-6 Low Ilead Sa fe ty Injection 2
AE 10 CA MO O
LT YES to Reactor Coolant System EV (19)
Cold Legs ST V 1' MOV-1869 A, B,
A-3, I-3, liigh !! cad Safe ty Injection 2
AE 3
GA M0 C
LT YES 1842 A-1 to Reac tor Coolant Sys.
EV (20)
ST VP MOV-186 7C, D B-1, B-2 Boron Injection Tank 2
A 3
GA M0 C
LT YES Outlet Isolation EV (21)
~
MOV-IS67A, B I-2, I-2 Boron Injection Tank 2
B 3
GA M0 C
EV YES Inlet Isolatton ST (21)
SURRY UN'.T 1 INSER/ ICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES 25 YSTE!! NAME SAFETY INJECTION DRAW.NO.
I 144R-FM-89 A pAcg VALVE DRAW.
CODE CATE-SIZE VALVE ACTUA-NORMAL TEST RELIEF ND!BER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUES~
TYPP T T O N' TV-ISS4A H-1 Boron Injection Tank 2
B 1
CA PN O
EV NO Rec i rcul a t ion ST TV-13848, C H-1, G-2 Boron Injection Tank 3
B 1
GA PN O
EV NO Re c i rcul a t ion ST RV-185 7 D-1 Boron Injection Tank 2
C 3/4 RE SA C
SP NO Rel ie f TV-SIl00 B-4 Nitrogen Accumulators A
1 GA PN 0
LT NO EV ST t
('
tJ e.
SURRY UN:.T 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 VALVES SAFETY INJEC rION 11448-FM-89 B 26 YSTD' NAME DRAW.NO.
PAGE VALVE DRAW.
CODE CATE-SIZE VALVE ACTUA-SORMAL TEST RELIEF N'OIBER LOCN.
FUNCTICN CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUESI Tyur T n':
RV-1358A, B, C C-4,C-5,C-7 Accumula tor Tank Relief 2
C 1
RE SA C
SP NO 1-SI-107, 109 C-5, A-5, Accumulator Discharge Check 1
C 12 CK SA C
CV YES 128, 130, G-7, A-7, (22) 145, 147 C-8, A-9 MOV-1865A, B,
C C-5,C-6,C-8 Accumulator Discharge 2
BE 12 CA MO O
EV NO ST VP 1-S I-8 8, 91, 9 4, A-2, A-2, Safety Injection to 1
C 6
CK SA C
CV YES 238, 239, 240 A-3, B-2 RCS Hot Legs (23)
B-2, A-3 1-SI-235, 236, B-1, B-1 High Hearl Safe ty Injection 1
C 2
CK SA C
CV YES 237 B-2 to RCS Cold Legs (23) 1-S I-2 41, 242, B-1, B-1, Low Head Safety Injection 1
C 6
CK SA C
CV YES 243 B-2 to RCS Cold Legs (24) 1-SI-2 24, 2 25, _
J-1, J-1, High Head Safe ty Injection 2
C 3
CK SA C
CV YES 226,227l,,
J-2, J-3 Check Valves a t Containment (23)
- y Ionetrations t
r2
,s 1-SI-228, 229()
J-3, J-3 Lou Head Safety Injection 2
C 6
CK SA C
CV YES Check Valves at Containment (24)
SU.RY UNIT I INSERVICE '"ESTING ASME CODE CLASS 1, 2 AND 3 VALVES STEM NAME SAFETY INJEC TION DRAW.NO.
11448-FM-89B PACE 27
\\ALVE DRAW.
CODE CATE-SIZE VALVE ACTUA-NORMAL TEST RELIEF ND:3ER LOON.
FUNCTICN CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUESI TYPr
'r T ON' MOV-18 6 6 A, B,
C, E-3, E-2, Cold & Hot Leg Sa fe ty 2
E 2
GL HW T
VP NO D,
E, F
E-2,
E-2 Injection Line Throttle Valve E-1, E-1 1-S I-79, 82, 85 A-1, A-1, Sa fe ty Injec t ion to RL3 2
C 6
CK SA C
CV YES A-2 Cold Legs (23)
TV-S I l01 A, R
J-5, J-5 Accumulator Nitrogen A
1 GA PN O
LT' NO Relief Line Isc1.61on EV ST l-SI-234 J-4 Nitrogen Accumula tors AC 1
CK SA C
CV YES LT (26) c-ta
( )
(
4
T 9
FS
)
2 EE S5 I U E2 E
LQ Y(
G EE A
RR P
O
'. I RS O' OOT NPT N
A P
U F
TRP A
COY 4
ATT 2
1 AG EE M
F VP LY 8
AT 4
V 4
l I
)
3 E
ZN I I S(
O B
N EY TR S
AO E
J U
N CG L
R A
D V
2 S
3 ES G
DA ND OL I N CC 1TAS TE2 I T N
UE1C YI S n
RVS w
RRA o
UEL d
S S C w
N o
I E N
l D
O B
O I
r C
TC o
t E
N V
U i.
S F
r,
N o e A
J nv C'
el D
G a J
V O'
m L
a p B
ei t r R
ST OTA R
li5 E
N C, C, E
G 25 M
J N A
NC C, C, E
RO 24 T
DL S
CC C, F,
,E B
ER E
VE AD
- 3;A 2
Li 0
C.
9 "A
i t
I A:
0 I
N VO 1
/
N D
P B
S D
T V
j S
T s
SURRY U'i1T 1 INSERVICE TESTING ASME CODE CLASS 1, 2 AND 3 V/iLVES i'ST D: NAME R.W.S.T. CROSS TIM DRAW.NO.
11448-FM-106C pAgg 23 VALVE DRAW.
CODE CATE-SIZE VALVE ACTUA-NO Rv>.L TEST RELIEF ND:EER LOCN.
FUNCTION CLASS CORY (IN.)
TYPE TOR POSI-REQ.
REQUES'I TYPr T T O'?
li TV-SIl02A, B D-3, D-3 Unit No. 1 RWST to Unit 2
B S
CA PN C
EV NO No. 2
.W S T Cr o s s Tie ST 1-S I-2 5 C-3 Charging Pump Suction 2
C 8
CK SA C
CV YES from RWST Check Valve (12) 1-SI-410 B-3 Charging Pump Suction 2
C 10 CK SA C
CV YES from RWST Check Valve (12) l
(~
tj L
,3
'\\
I f
g I
a
SURRY UNIT 1 INSER" ICE TESTING AS'IE CODE CLASS 1, 2 AND 3 VALVES RELIEF REQUESTS (1) Closure of these valves during power operation will result in a turbine and reactor trip.
As an alternative, they will be cycled during reac tor shutdown.
(2) Opening these valves during power operation would introduce cold and out of chenistry specifications auxiliary feedwater to the stean generators resulting in thermal stress and possible degradation.
As an alternative, they will be tested during cold shutdown.
(3) Closure of these valves during power operation vould require securing f eed wa te r (reculting in a reactor trip) and initiation of auxiliary feedwa ter flow to back seat the disc.
These valves will be tested during cold shutdoun.
(4) A commitment has been nade prohibiting the intr oduction of service water into the Recirculation Spray Mcat Exch a nge rs.
As an alterna-t ive, these valves vill be tested during each refueling outage.
(5) These check valves are located in the c o ntainme n t and may be norna11y open or closed depending on system lineup.
A contaimnent entry and nanipulation of other system valves is necessary to test these valves.
This is considered impractical during power operation and therefore they will be tested during cold shutdown.
(6)
Conpanent cooling wa ter flow to the reac tor coolant pumps is required at all tires the pumps are in operation.
Fa ilu re of one of these valvas in a closed position during cycling would resul t in a loss of the cooling flow to the pump.
These valves will be tested during cold shutdown when the reactor coolant pumps are secured.
(7) These valves remain open during normal plant coerations.
It is not prac t ical to test for closure unless the containnent air coolers are taken out of service.
As an al terna tive, these valves will be tested during each refueling outage.
(8)
It is not possible to verify that this norna11y closed check valve opens without initiation of flow through the containment spray header or by visual observation inside the containment.
As an al te rna t ive the valve shall be exercised during each refueling outage.
(9 ) Cycling of these RilR sys ten valves during power ope ra tions would subject the RHR systen to f ul 1 RCS pressure.
These valves will be exercised when the RHR systen is placed into ope ra t ion during cooldown of the reactor coolant system.
- r. 3 o m - 3 L.
%_ ~v
(10) This relief valve cannot be tested unless the entire RHR system is removed frea service an1 drained.
The Ril? system aust be ava il abl e during operation and refueling outages f or core cooli ng capabilit y,
The valve will be tested whenever the RHR system is removed from service and drained for maintenance.
(11) This valve can only be cycled when the RilR pumps are started.
As an al ternative to testing once per (3) nonths, they will be tested when the RHR pumps are tested in the pump testing program.
(12) Exercising this valve during power operation would require the charging pump suctions to be aligned with the refueling wa ter storage tank.
This vould cause a sudden increase in RCS boron inventory.
It will be exercised during cold shutdown when the RCS is hora ted to shutdown conditions.
(13) This valve cannot be exercised without possible damage to the charging pumps.
As an al ternat ive, it will be exercised when the charging pumps are secured during each refueling outage.
(14) To protect the reactor coolant pumps seals, flow is required at all tinen during power operation and cold shutdown.
This valve will be exercised during each refueling shutdown.
(15) This valve cannot be exercised when the charging and le tdown systens are in operation due to increased risk of overpressuriza tion of the letdown system.
It will be exercised durint; cold shutdown.
(16) Failure of this valve in a closed position during exercising would cause a loss of charging flow and could result in an inability to na tutain reac tory coolant inventory.
This valve will be exercised d uring cold shu tdown.
(17) This flow cont rol valve is modulated open and cloud by a ten turn po n t e n t i ome t e r located on the control board.
Si nce the valve stroke time (ST) is dependent on operator respause tine in malpula t-ine the controller and the tine constant of the cont rol systen, it will not provide useful information and therefore will not be measured.
(IS) This normally closed check valve cannot be exercised althout isola t ing suction to the I.HS1 pump and draining a portica of the systen.
This valve will be pa r t-s t roke exercised during each refueling outage using th2 leakage monitoring test connections.
(19 ) Th i s valve is required to be nailtained in the indicated position with power to the operator removed during power operation.
It will be cycle:1 during cold shu t town.
t_;qg,.
u.. ~ c, O (20) This valve is directly at tached to the charging pump discharge header.
If this valve vere exercised during power operation, hot or c old shu tdown, u nc on t r ol l ed flow to the RCS night cause overpressuri-zation.
Ad d i t ionall y MOV-l S69 A a nd B a re requ i red to be na la t a ined closed wi th power to the operator removed during pour operation.
As an alternative, this valve will be exercised during each refuel-ing oatage.
(21) These valves were designed to be closed with no differential pressure accross the seats.
Cycling during power operation causes the seats to leak when the valve is closed resulting in subsequent dilution of the boron injection tank.
As an alternative, these valves will be tested during cold shutdown.
(22) To exercise this normally closed check valve would require the sinulation of a loss of coolant ac c id en t,
i.e. loss RCS pressure.
This valve will be part-stroke exercised by initiating accumulator injectioa to the RCS while cooling down for a refueling outage.
(23) The only way to verify that these normally closed check valves open is by initiating flow, using the charging pumps, into the reactor coolant systen hot and cold legs.
If charging flow was directed to the reactor coolant systea in this nanner it could cause over-pressurinition during cold shutdown or t esult in a loss in charging flow cont rol during operation.
As an al ternate, these check valves will be exercised open during each refueling outage.
(24) The only way to verify that these normally closed check valves can open is by initiating flow, using the low head safety injection pumps, into the reactor coolant systen hot and cold Icgs.
During operation or cold shutdown reactor coolant system pressure will be higher than the low head punp discharge pressure precluding flow into the vessel.
As an alternate, these valves will be exercised open during each refueling outage.
(25) Closing these valves during power operation causes the downstream piping to become empty due to drainage and uater flashing to steam.
When the valves are reopened a flow surge occurs which autonatically isolates the inner valves due to high flow.
Then a containment entry is necessary to reset these valves and upon reopening the process may occur again.
As an al terna t ive these valves will be exercised during colci shutdown.
(26) These valves are normally closed during reactor operation and are required to remain closed during an accident.
As an alternative these valves will be leak tested during each refueling outage.
( nn -
Gu. ~, qr