ML20085A689
| ML20085A689 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse, Crane  |
| Issue date: | 03/18/1970 |
| From: | BABCOCK & WILCOX CO. |
| To: | |
| References | |
| TASK-06, TASK-6, TASK-GB GPU-0443, GPU-443, NUDOCS 8307070035 | |
| Download: ML20085A689 (11) | |
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Title W
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l C 1.0 Reference Docu:ents i
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l 3.0 Ceiicrsl Iteguire:ests
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. Material Require ents s..
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5.0 Inspectica Require:ents 2
i 6.0 Testing Require =en'ts.
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Cleanliness Requirements 2..*
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Data Required
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Contract, Data Required l
Appendix A Peter'ence Docu=en'.s
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4 Appendix 3 Yalve Tabulatica Sheet -
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k ISCUE: 3-10-70 Pace i SERIEI.: 1079/:03-1!6 L
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DATE PAC */ PARA.
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9/n/67 All Pages Draft Issue t
5/29/63 '.
All Pages k.OriginalIssue
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7/...3/68 All Pages Ceneral Revisions
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3/10/70 All Pages Revised for Contaact
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ISSUE: 3-18-70 Page 11 SLRIAL: 1079,'I :Id l
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. TECHNICAI, SPECIFICATI0:3 FCR N
,... ELECTRTC?J,LY AC"'UATED RELIIT VAINES L T O
1.0 SCOPE b
7 This specificatica delineates the requirements of electrically actuated relief f valves for use in the Reactor Coolant Sys'.es of a Nuclear Steas Supply Systes.
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2.0.,RETERE*:CS DOCL7ENTP.
The valves are to be designed, fabriested, inspected and tested in accordance vith the applicable'sectiocs of the codes and standards listed in Appendix A and the special require--ants stated in succeeding sections of this specifica-
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r 3.0 GENERAL RECUTR"ENTS
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c 31 All valves shall be r.anufacturer's standard, or better. for, service h
condition.s stated in Appendix 3.
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C a32 Design of valves and their appurtenances shafl include the, seismic E
forces for Class I valves in ageordance with the specification Y
referenect in Paragraph 1.% of Appendix A.
W 33 The valves shall be flanged in accordance with USAS 316.5 as reference' d
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in Para. 2.1 er Appendix A.
Flange facing vill be as specified in the E.
4 contract stage. In the~ case where the flange does not r.or= ally confors 4
with these starJards, the Vendor shall specify his co==ercial flange di.
mensions in his proposal.
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3.h Each valve shall meet the requirencats of Para.1.3 of Appendix A.
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The
.essentiality level of each valve is listed in Appendix B.
.O 35 The valves shall be furnished with necessary accessories required for sat-isfactory operation in response to a remote electrical signal.
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3.6 Marking of valves shall be in acco'rdance with standard : equire=ents of th standard specified in Para. 2.3 of Appendix A.
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37 The valves shall riet the applicable requirements of the specification d':,-
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referenced in Paracraph 1.2 cf Appendix A.
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SERIAL: LOT 9/ITt e
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T used for the vetted surfaces of the valves. l'aterials shall neet' ap-C Propriate AST:1 specifications.
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%.2 The Yendor shall' propose tria =aterials (stem, nozzle, seat, and disk) meetinC the require =ents of the service and which will be free fres galling, corrosion, and free:Ing.
30 INSPECTIC*t REQUIRD'I.?fS.-
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Each valve shall meet the requira:ents for Class I, valves in accordance with the AS6'E Pump & Valve Code as referenced in Paragraph 2.1 of Appendix A.
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316 5 as referenced in Paragraph 2.2 of Appendix A.
Yalves shall show i
no leskage or permanent deformation at any point.
6.2 A hot performanc'e test using ss.turated stesa at 2300 psig shan be per-formed by the Yendor on each valve using tie followind method.
Each vaM.
shall-be lifted three successive times,vithin i 15 of the set pressure-(2300 psig) and.anoved to cool a minimum of five minutes. between esch - ?
The valve shan resett after each lift with leakage not exceeding,2. cubp;.-
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centimeters per hour per inch of seat diameter.
Following this test thy.
. valve shan be sealed.
F 6.3 Dcmineralized ' vat'r shan be u.. sed as t1:e hydrotest media..
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6.h Disassembly of the valves aher the seat test and/or relief pressure sei t,ing shall be cause for ret est.
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e 70 CLEANLI!"235 v 2UIRE'E:TS r
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. The valves shan'=eet the Class 3 cleanliness requirements in accordance with,
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Marking of valves shall be la a'ccord' ance with standards' requirements of {_..
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.Tamaar shall describe t?.se flanges to be supplied and shall recommend ar:
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. ahle gaskets far the service.
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ICCUE: 3-18-70 Page 2 be SERIAL: 107C; F
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.g Priod to rel~ ens'e for =anufacture, the Yendor shall sut zit copies of calcu C'
I or test data that de=ce. state that the equipment to be "urnished neets. the tents of Paragraph 1.4 of Appendix A.
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Is:UE: 3-18-70 Page 3 SERIAL: 1075 !
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A S PE C i f l C A T I ON NO. lo70/"SS-ik C0HTRACT NO. An-om'a StasatseS$wt Oatt DATA SHEET TOR K_
ELECTRICALLY ACTUATED RELIEF YALVES 1.0 REFERENCE H W SPECIFICATIOCS ISSUE DATE 1.1.
MW Specification No.1095. "Genersl Specification t
for Cleanliness of maclear Reactor Systems and C<aponents".
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10/23/69 t
i 1.2 M*4 f3pecification No. CS-3-106. " General Technical
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Specification for All Coc:ponents Used in Auxiliary q,
j y1uid Systems."
g /68 1.3 MW Specificatica No.1152 " Nuclear Stality Prograa hif Requirements Specification."
10/21/69 }
. 1.h MW Specification No.1107/NSS-1%/0%70 " Seismic b
d Design Basis for Auxiliary E.tuipment."
b/2fs/70 I
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2.0 FIFERE"CE INL'JSTRY ST*. "!ARDS T
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r 3-2.1 ASME Code for Pu-ps and Yalves for Nuclear Power.
Nov. 1968 t
tJSA Standard 316.5, " Steel Pipe Flanges and 71a.1ged 2.2 g
Pittings."
1961 4
23 Manufacturer's Standa:rdardization Society of the Yalves g:
and Fittings Industry. Standard Practics SP-25 Esrking
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'3 SPECIFICATION NO.amro/ N -ils i..
CONTRACT HO. MO-N O I
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.: DATA SHEET FOR VStVP ?A'UffAPTO't SECT s.
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ASME h
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per B&W Spee.1095/lc69 Dtd.10-23-69 1.
Seismic Class' 1
Per B&W Spec. 1107/0469 Utd.' Is-18-69
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Supplementary Information Essentia111ty Level II -
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APPROVED:
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e i Oc::ro.ent. nc-PS\\'2 E.lec. Ac:uated Relid Valve i
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',, ~ Revise Appendix "B" of specifi. cation 1079/355-14 as follows.:
J.ine,5 - Change size from 21" x 3* to 21" x 4*
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S P E C 1 F I C AT I Cil NO. 107o/ C35-18' _
CONTRACT lid. 62 'C0l' stasav essac sace y
YAI.VE TAtU1.ATION SWIrr Iteza:_
Electrc=atic Relief Valve t
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RC-PSV2
'i quantity:
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Design Coaditions:
2500 L
ysIO 670
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. Size:. 24 1 4" Inlet 71sneed RF - 2500 lb.
Oatlet F1 need ?"' -~ 600 5,'-
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Applicable Code:
AS)2,
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Control signal: 125 Volts D,C..
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F.ssentiallity Level II _ per Pfl.t spec.
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1079/Nss-14 2
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o20-0014 Purchase Creer:
023090Ls 4
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