ML19308C028

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Responds to Jd Carlton 661123 Memo to DW Montgomery Re Pressurizer Safety Valve Sizing & Jd Carlton 670303 Memo to Jh Taylor Re Pressurizer Transient Requirements.Recommends Elimination of pilot-operated Valve from Valve Arrangement
ML19308C028
Person / Time
Site: Crane Constellation icon.png
Issue date: 06/22/1967
From: Butt W
BABCOCK & WILCOX CO.
To: Dobel H
BABCOCK & WILCOX CO.
References
TASK-TF, TASK-TMR NUDOCS 8001170803
Download: ML19308C028 (8)


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0 thtetirad to te M3,CO3 r*/rr bc::4 c.. th; rod vi'J A avc1 cecider.t. c: c':rcribed in refertnee (c) cad (b),

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,j the proposal indicates thzt the crecettriter will hcVe two eenventicesi crfoty valv f

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and cas pilot c>parcted valve.

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vcits $s to prerr.,t lift cf th? cc::tentire..1 :,Motr Tclu chich it ec:e

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the r :' fer c:fcty valver. et cil, $

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,r p t':ct C.J tarcty icivce vill b:3 rc:uirt;d to ILft; G:rcie o..

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j pilot cpected vc1vo da clsr.inctc.1 reca the sc.irc r.: r.rw, it it, rc:c-.md u. ; t.%3

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In ar;7 tver.t rn evs.lur,tici cf potel.Llu vertcro cad Scite crrc.Tr.ac tts he tu r m.,co m,4 # m t-m.

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_COU"?T. f': C"X,M.n'-: ? tit c"c t (1), li:t tect. trill rfo: ;;d utin;; 100 psic r.tatr. With c prcrt: tad rprir; cn the Ot j

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inic tcLt ir.duri:u r. chek of t.h p -;;2 int 001.1, blevd.r.ra r.1,Jn'.c:Od t

g tnd pcricrr.t:0 ve.c bc:;c prer.::are m.iitic. :.

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tecto to be r,crfc:n-d t.t 2,501 psic 0 6~/0 f.

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S:'t. prec:arv vill be c% c=i ;; 2,57J p:1; cir.

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Ecat lo:Acco tect to be p:ric.e.e.1 at 10 ptr cut bcles sat preccure trir::

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.stasa.

Ticiness offersd is no awaible or vicnal IsakaEs at 10 por cent beleer f

]1 oet pressurw. 01r sp4cificttico ecli' ira c. ra:irms lo:2.cc cf 10 cc/er.:/13 l

rer.t dic:oter t.t 2h ti:::: t!>cimi rroscuro.

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(h) 1;o gr:.tity dite::::t is cinn fer either cf.co cf vt3,ve.

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The valves p:rpcce4 hcve Loen cortified under ie tim III, t.rticle 9.

1 Cc"Nm at treI: MP. fccrGo*Tn'3ca) r Er.?:

l (1) 9.a valve Tro;>cced ne r.o:, b. n ecrLifted to Sc:tico III, tyticlo 9.

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1A1 r.vt ft:rniched e clesed Lc:. ct 4 id teclico: typo vr.lve fer cents.ca III e= gee, t

The psvposed velve vill bts tctilt ucirc cu Irne (evtleged fe s::ttes I r.,..g 1

4i tien VIII vel cas.

i (2) Tha pri4s quoted is bassd en a ::ininm cN.or to twelvo velves.

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1 (1) Th) vely: prtYeorr41 by N: io a pilot ecrated 'v.tive. Th.0 flev p:th Utsw;h

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DW I& $f k (7 $ b }6 W 6 M Rh L ru o j

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the vcive in ti.c a cvm : cf t sts Icend in ecmtr.Ur'd v41m. Th mt ir.h '

is in de rids of the v.lve with lis prer.:ure ten (Ir.0 to 1.c3/i th V'lYC 'J:;ta 4

the dir.cha27.0 r V t tv !v.r:iiahed eith the cutlet cer.n:ctica c.c the rdGs er tottn:.

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(2) *; ". hs.< c:scr fut-icN:.; a yds e it.: 1.c:ri: r.o& t m 1Scctiv:. G et v:h -o fut~it'.vi 4

j to ct.te 1:cte tem fcr t...ral tv liettien.

3 (3) T-11 olros to 1.sve f.!?; Oution III certifiertit.n cf their id.o dodtr. this fdl.

7hcr t.re tra.ca*.lr frbricating c r.:rety vt.1vo (ca-tr.- I'illr.t:-:

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till Lt.re t tvt.:ity cf L*C,C'.O lt.r/.3. Sche: sled colivery cf thic vdse iu 3

j Decer. der 1967.

t (L) i 7-ft in pre:ently e-hittind tset vdvce to the !;stimal La.W et Ec'le

4..4 Precauro Testcl Jr.rpcetien for NJC certificatic-1.

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(5) Q2antity timec.:nts of fL,000 per valve are utilchle en tho 7-P. vorce.

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has indi'4ted that they may redues the prica of their valves, but th<.y den't l

knew how rJ:h.

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i (6) intion III, JJticle 9 re;drre th:1 t'.ic 1 pc of trava L.:. eqdroed t;it s c 3

centirr.icac r.cr..itor to dr.<ct bollt/.ic fcils:re.

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Cotert.1 po:a.ible refety vClvo c:rmce-anto reo razm ca Fipa 1.

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of ecch 4: rsreurent is cisen in Tebic 1.

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iho fv;ters con:idsred in erducting etch t.:rsnfe::nt tro es folleve.t

1) Featurco inco:perstod in the errevveinnt 19 p.:mit adntramee c.eir.:

eparatices cr whila syste. le pretisurized,

2) Ability 9 coot 1:aae operation with a cecctive safety rdva. (toe 4 ecat, i

cracked bellcwe)

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3) Pc 'xten tM.. rr.:ld per-it f rohtim cf et;ri: r.efsty velvo foll< b " lift
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ld fp*,,ea fitriMlity for t2.4 ced invcated.

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' thin errr.~.ct vent le trcil.J:lo with tho Tsrpt-acek vrive cely c.1.Mc it is ths tr lr

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fell ctarity vcin s.u!1:6h. Since tho Ceo rty.: ins c. beller:: inte, rit.y e :yd.tcr

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ca th s I-P. vdvo, it v ;1d to nc;er, tr/ to tht the pit.at de'.ra in tha tvtrat cf & 141-1,

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le-f t.ilesc; t'r'::Tero, th3 s c.rre;- ts-tat ie not co.cici red crticicetery.

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l 1*1.c irret 4.e:t vt.ha it r st t-ce:t:'Ac fcr thl: cac Itn~st fer the rvar=1 ct:.L:c;

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ttwo. Tt.ic teri::c c t. de:3 r.ct hcVe r.v proviriens fc vcive c:siete.r'-:.: tith tha

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s r;rrtc: pret c-it.s4 cr c:tur. Itir isolctir c ice':ing er eteck vely,i, I= vie.7 c; t a

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die:1ility to parfc:.2 r.sdntentace darireg cperction this arra4wt in tat, ccostLN 4

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antisfactery.

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t i'.-is t:re.rm.t is crt.11A'lu rith ths Trycet4.ee.h talvv only r.4.r:s it in th: c.1;-

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full espacity valve evcilthis. This arrmget-et pmvic:e cca 1cic fle::ibilit: c?

f ccatir.usd pir,nt epcratica ritis one valve a stred.'ey t^.stus c? isciated fcr a.::ir,.

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tc:ce::. 0WAld the Sca-lir.ca y;1gy li;g. tad ttick cya cr icil to n:::t pre,:Q,,

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it ec21o to pickly and es:117 iccicted to prete.t c :creits tyct,~.: t,le.t.:: r.,

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Wis eftrgamint providae for cuitinued cla'tt (Meat 3to with cr.2 cf cc:h reir cf il valves on a sis 9tMy states or isolated fer raintenance. This c.rrenfant watic i

rwire a rather cenpliceted becdv crr:ncreent that could inerra:s the cost raf j

the errer.tc ct.t sicni'ficcatly es co. pared to errca;otcat " A" thrv Sc*,

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l inletica rf r.:re tbra cc,3 c.fc.ty vdro ct n ti-.

ir.ro t e no orrftir.icos for ra W -

j cining iAcch talto Fra et=:- fellcvir., e lif t, s :d em.n.;cenp, tM rjstm could L2e-r i

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Cwn 1;cren (LccrI'c.:tive vd vc coald*c itolct*,d, hit trruccaent hcs it err pliceted c

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hut'"-n thct. could ir :reu>e tJ:

0 cott cf c:rca c:. tut si, nifictaOy to cer.psa d 43 rrratu t

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'1d0 c rent.ar.ett is c ncilficGion cf rJrtntt-:ent 50*' dich replaccc the full ecp nlve rith ttia hclf c::acity vdves.

Tr.o ci,::rc'.imcl fcctms c.~a the cro :

2 cc:ence to t 'C'.

Lo hosd.'r 4 rca c. =n codd 1:e cut:ily ctree. lined vit':ent cree: cit::

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Es:r-1 c 2 tN: ft.:*.cro ch:ve, erre:vercr.t *1'" it. the rc::r: ind-d c.rrt.n- :- :-t 2:

crr:.*:: tr.t 2:ith ed.co eclits, t the.ra, is per:itted by Ss tien III of Ccda dich

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I reads sa folices:

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%910.7 L'hile pressure relieving devices naod net bs inr;talled dirt.:tl T cc the veccalm ::':Ic:. th y cr. rte to protect, no etcp valve er dr.iler (rvic. thall 1 e ol red o

r.htita to c trete;tiva c eic.c rc. quired f or the crett:tico of.ny vets 1 eg th:t it could rn:rro the protectica effcrc. to the vectol, cice;,4 htt tru:h et

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op veltro 2

c? ether devices arir rhoun to t*e required in the cirect interect of c,;eter, screy 3

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c? Ic-12o nwoec ef in cervice intractica cr.d testin, tr.t$-et, Ic?mt, to tic re:;+11tmmt.c c.; E-910.6.

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t 910.6 tsy cio;> valve or cir:11er d rice en the inlet o-dicchcrre race of e tw I

t(ctivo (.t.

f tc parldd in cc.!c :::1Ly rith t'.910.71h:.11 be t.o eenst. veto <f, M:

1, tiSr,1y controned c.nd interlo:ked thet the req 2Lrenent of N.910.1 vill be eenpiled f

vita ascar en condiuces of over tim er the erst.

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IU* Ne t 87 0.1 SilmIf Ct8teti that th4 prCDCure YDEMI thall haVO C'i'3r=DPC55urc i

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r.o further con *,Gert'ic1 for o77 recreat tylicialer..

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A3 tteted in the ";ccccata en t?.s C.*:.fy.p.*,te, t',ry do tr-t eficr c hot I

t parfcre.cnce at. Gnt'ar *t ec.nditt:,3 iS.t.t tr:cld u.=.ca.? t: t.te 12.3 tcive 80 l

2',ility to ett cur cp;;ifictatire.. i*nic to ccr.,1c:rT.d ver;r i=pe-tent,

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(n-J it ic; the.te c', rce: vend:t t'-:t ths Cre:5/ VLive r aito no P*rthcr i

con:ic.rt. tic:. for our ptwa*, tpltec,3ce.

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4; heater (Oc:.:.lic:ted) i 4j f.icce the field cf c:lectice hos 1.m nc rtv<.4 una te cw revie; ruer.2,

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frucscr tr.d the (nJy c;* nt encir:0 ce. teat 1: 1.he certifict. tic 2 of cQedt-thich it. conciatred a rei;.*.ine Proced:re with nstenr, it is ticem:*r.64 thct procureneat md fim ar.fety valve header arrangeact be haced ce the Drtreser 0

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