ML20055B877
| ML20055B877 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 07/19/1982 |
| From: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.K.3.28, TASK-TM NUDOCS 8207230423 | |
| Download: ML20055B877 (2) | |
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PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101 (215) 841 5001 SHIELDS L DALTROFF VICE PRassDeed?
SLEC TRIC PRODUCTIOfd Jul v la, loo?
nocket "or.
'50-?77 r,0-?79 "r. na r rel l G.
Einenhut, Director ni"icion or nicenning ti.n. "uclonr "nqu'atory commiccion "a"hinctor, nr 70Er5 qUBJ"CT-An9 Valvo Accumulator "itroorn qu nni v "o i f i ca t ion : MUPrC-07?7, Tter TI.".3.?8 Peach Potton Atomic Power Station Dear
'fr.
Ei enhut:
'"h i " letter nrov!Aen a r' A i t i on r 1 information concerninc a ncairication to the Peach "ot tor firiite ? ana 1 Automatic DeDrernurizntion Rycton (ADS) "alvn accumulator nitronen cupnly evctor which nocc be"ond the recuireronte or ?ini'FG 0737, Iter II.P 3.23, and war Mercribed in Pncionure ? of corrennonMence datra Dnconber ?9, 1991 (P.
L.
Daltroff to D.
G.
ricenhut).
Tn thn necenker 20, 1031 lotter, wo aercribed a riant-unione automatic trin foaturn that vould clore a colonoid icolation val vo on nach nitronen cunnly line if tho nitrocen cl ov hocoron axcer-i"ol y hi ch.
"he additional rodification war nrovided to miticate the l o"F of the nitroqen n upnl y inventory in the event of a nine brook.
Trnierontation of thir cunnlerontary Podification hac not been ce n!ctolv catinfnctory ninen the Occicn of the icolation "alve-ic one-d i recti onal,
ronromuenti",
the valven Ro not nro"!Ae a ticht coal to rrevent rn"nrre fl ov.
"' h e y ? r e inctalled with the
- ' ov direction nointinq out"ard from containmont to accure nocitive clonuro o# the 1inec if containrnrt i-el a tion ic reruired.
"owever, tbn one-directional 0
8207230423 820719 PDR ADOCK 05000 P
_ _ _ _ _ _ _ - - _. = _ _ _ _ _. - -. _ - -
d f*r.
D. G.
Einenhut page 2 i
nature of tho valve will not nrovide inolation of inwara riow in the event of a pipe braak.
An a conconunnce, we have initiated administrative contro1n to linit the nunbor of nitronen Fortion which ray En attached to the nupply connection ro an to nreclude the ponnibili ty of rionificant containment nrennurization.
Additionallv, un are movinq to enrure that the nvnten functionn an intended by inntallino replacement valves donigned for tuo-way i nol a t i on.
Un have reviewod the hanin for the nvnten derign nnecificatione anM have concluded that the nynten currently meetn the recuirementr of ?10PFG 0737, Item II.K.1.28 without meetino the nlant-unicue fnature oroviourlv doncribed.
"hernfore, it in apnronriate to exclude thin derion feature from the NUREG 0737, Tten II.M.3.?8 irrue.
Ghould $/ou have any cuestionn renardinq thin recuent, n!cano do not honitate to contact un.
Very t r ul v vou r r.,
7 e
L - [ gt L Lw. -
cc:
r.
3.
Cownill Site Tnnpector
.