ML19322A685

Responds to AEC Requesting Verification of Min Valve Wall thicknesses.Unit-1 Program of Valve Wall Measurements to Be Completed 721201.Justification for Nonconforming Valve Walls Will Be Provided

ML19322A685
Person / Time
Site:	Oconee
Issue date:	07/27/1972
From:	Thies A DUKE POWER CO.
To:	Jennifer Davis NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19322A656	List: ML19322A655 ML19322A663 ML19322A671 ML19322A677 ML19322A685 ML19322A694 ML19322A697
References
NUDOCS 7911210733
Download: ML19322A685 (2)

Text

_

w-'-

wws

~

l A

i. t -

t JU ',cn 1,-o; *E.n oc_ t PAN Y

.r.

w.

Pa. t a nun.n:so

.a: Se,cta Ca enca ST= cT. Gnm.aTTc, N. C. mo:

e

• C

• TS P. O. L'ox

.7's o

o, v. -,. m.m..

F PO'.

C Y O s s 'e O

,2, rt $ it Fi * *e Jul; 27> 1972 Mr. J.,:.n G. Davis, Director Direttorale of Regulatory Operations Atomic Encr>;y Ccaissicu c. e.

o-n v

c..

ae..,on.

m

.n.

r 2 . ^, P.-, ch t r e.

Straat. Nor t!"me t At ir at::

%cr<d o 20303 2,

s:., :I.t:ac >

o 50-2H 50-270

.v) w

....t Der ':r. "uvis

~, ' ',.-,.......,

.u m-t' n c#.

.m.,.._,,.,e.

eo..,..

1u, ~. o :..T...._.",,,

1 "' ' _

p.4 m.

uininna.:211 thic'.: ness requirements for valv.. igertant to nrclect c fety for oconee Units 1, 2, and 3.

W h-a "icre th prassure b ari.ry for.:hich de.cnstration of acecptcble valv ccll thichness is rcquired, as defined by your Juna 30, 1A 2 latter.

It is cur intent to prov,m,e c'occaunceo, resu,ts or ultrascnic neaturc er t of tea.u tas c.acas, with a cu r. cison to specified r.ininun wall thickness, cf calv s ;itM n the identificd pressure baundary.

Our progran of w211 thickness censuren:nts vill 'ee conpicte nn.' records avail,.ibla for ena..:inutlen by your incpeccor on the callc.'in;; ucin.Cuic:

Oconce 1 - Dec mbre 1, 1972 Ocenec 2 - January 1, 1973 I

0:enen 3

':' arch 1,1913 In select;.! cas s, we.cill provi.le an en~ineerin; juetificcuion fcr valves

. e

. a..

a_ _..a.

n..,,

a.. c..

n. n. a ;..,

gl, < c,a..> o.

...s.... co

.u.a to e r,, :,A..

u satisfy service rz uircnentc.

fuch.i.u tificatica vill ha tranc-1:ted to n

vcur off!ca on the above schedule.

Ver"> trul" v.aurs,

'/

l

-m,'Q s

e

,/-a-s s

/

r e

,t

/ r " - ~, 's,/s; a

z.

C.

,u, c s

, y w 1.

..c,,

g u.

. ~...

[

w,.

l C C,. ~<. -

.c.

L,

4911210 ) } }

Mr. R. L. Dick ur. u. n. c<en 3,

ar.

t.. o. i ona

t I

I r^r Ltr to Duke Power Company, dtl 10/27/72, transmitting Directorate of Regulatory Operations Bulletin 72-2 i

DISTRIEUTION:

j CO Files DR Central File-I 1

PDR i

Local PER l

t I

4 t

i 1

I 1

I e

e h

6

• 9 h' '

.I t 1 I

t ')

P.

b O

4

]

b O

i i

I I

i f

...._