ML19344F247

Responds to IE Bulletin 80-08 Re Examination of Containment Liner Penetration Welds.Design Uses Flued Head for Penetration Connections.Field Installation Just Begun & Nondestructive Examination Results Not Available

ML19344F247
Person / Time
Site:	Wolf Creek
Issue date:	07/01/1980
From:	Koester G KANSAS GAS & ELECTRIC CO.
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
IEB-80-08, IEB-80-8, NUDOCS 8009150014
Download: ML19344F247 (6)

Text

,

D xAnsAs aAs Anc uscimc c:wany fMe at amTTusse crskenu,y OLENN 4. MO CSTER vect pets 40tmi optmationes July 1, 1980 Mr. Karl V. Seyfrit, Director U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76012

~

KMLNRC-010 Re:

RIV Docket No. STN 50-482/IE Bulletin No. 80-08 Ref: Letter of 4/7/80 from Office of Inspection and Enforcement, NRC to KG&E

Dear Mr. Seyfrit:

The referenced letter required action by Kansas Gas and Electric Company in regard to IE Bulletin 80-08 concerning examination of containment liner penetration welds. Our response is as follows:

l Response to Item 1 The Wolf Creek Generating Station, Unit No.1, (WCGS) design uses a flued head design for penetration connections.

The l

design utilizes a full penetration butt weld between penetration i

sleeve and process pipe as illustrated in Figure NE 1120-1, Winter 1975 Addenda to the 1974 edition of the ASME Boiler and Pressure Vessel Code.

Response to Item ?

a)

The erection of WCGS is being conducted in accordance I

with the 1974 edition of the ASME Boiler and Pressure Vessel Code including Addenda through Summer 1975.

l b)

Radiographic examination of penetration sleeve to process pipe welds is required by the Code.

Field installaticn at WCGS of the subject flued heads has only begun and non-destructive examination (NDE) results are as yet unavailable.

d).

Once installation is complete, the NDE information will be forwarded to you.

c)

The type of weld joint and other details regarding. pipe material, size and thickness, etc., for all flued head 8009150ob 201 N. Market - Wichsts. Kansas - Mail Adews: P.O. Bo M I Wenita. Kansas 67201 - Telephone: Area Ccde (316) 2616451

g Mr. Karl V.:Seyfrit KMLNRC-010 July 1, 1980 penetration assemblies are shown on the attached four sheets. Backing bars or rings are precluded for use with this type of weld.

Response to Item 3 Not applicable.

Yours very truly, l

J

'jpf!/ f Y.

1 GLK:bb Attach cc: Director, Division of Reactor Construction Inspection Washington, D.C.

20555 Attachment 1

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APPENDlX E FLUED HEAD DATA PHOCESS PIPE DAIA St EEvE DATA FLUED HE AD DAid OIA 13t!!

CDORE (!1 All U FTC::a:! PIT 60:.591 tbTf55 DIA.

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1.000 8 959 l

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2. TYPICAL flEL D WELD FJO : ( HEF ER TO 10466 MS-8 )

AB MAltJ SIE AM 1 - AD F074 AE MAltJ f E E LWA1 E H

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TYPE

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AP PI'I CATI ON: FOR NOMINAL WALL THICKN ESSES %"AND BELOW IN ASME SECTION m CLASS 1,2g 3 AND ANSI B31.1 CRITICAL AND NONCRITICAL SYSTEMS.

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-B (NOMINAL ID)

NOTE :

1. FITTINGS NORMALLY SUPPLIED WITH 37/ DEGREE BEVEL ARE 2

PERMISSIBLE AT FIELD WELC,S.

TY P E "B" APPLICATIONS:l. FOR NOMINAL WALL THICK N ESSES ABOVE /g"TO 4" INCLUSIVE I

3 IN ASME SECTION E CL ASS I,2,/3 AND ANSI B31.1 CRITIC AL SYSTEMS.

I ~TO /~lNCLUSIVE 2.FOR NOMINAL WALL THICKNESSES ABOVE /g 3

4 IN ANSI B31.1 NONCRITICAL SYSTEMS.

3.FOR NOMINAL WALL THlCKNESS ABOVE /8"TO 3/8" I

INCLUSlVE IN ANSI B 31.1 SYSTEM FOR FIELD WELD ENDS JOINING BECHTEL PIPING TO WESTINGHOUSE VALVE OR EQUIPMENT.

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-B (NOMINAL ID) f JOS NO.10 4 6 4 l.

SCALE NTS OcsicNco A B lOR AWN T C B lll"'l SECHTEL OWG NO.

REV M..,S - 6 i5 SL 33S,Qf END PREPARATION DATA e

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SHEET 5 0F7 il2l2l4lslsl7I l

T Y P E "C" A,PPLIC ATION : FOR NOMINAL WALL THICKNESSES ABCVE <{33 "I N A S M E SECTION III CLASS (2,/3 AND ANSI B31.1 CRITICAL SYSTEMS. SEE NOTE 4

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-0.005 NOTES:

1. FOR PIPING, PUMPS, VALVES, NOZZLES AND FITTINGS NOT REQUIRING l

INSERVICE INSPECTION:

Xp = t +,/8, (WHERE t IS THE NCMINAL PIPE WALL THICKNESS) 2.FOR ALL CLASS I AND THOSE CLASS 2 PIPES IDENTIFIED ON ISOMETRIC DRAWINGS AS REQUIRING INSERVICE INSPECTION:

Xg: 21 [!O 16"

3. FOR VALVES AND FITTINGS WHERE CONFORMANCE WITH NOTE I ABOVE IS NOT FEASIBLE:

X : /4 _I/16 f

n SEE MS-7 FOR TRANSITION ANGLE ON VALVES

4. THIS WELD END PREPARATION IS COMPATIBLE WITH WESTINGHOUSE VALVES AND EQUIPMENT WHOSE NOMINAL WALL THICKNESS IS ABOVE 3/g ".

J O S N Ct 10466 scatt NTS otsicsto A B IOMAWN TCB l%'l sccH75 o*c No-I*tv l

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(((80 S( 33S END PREPARAT10N DATA SHEET 6 0FT il:lil41slej7!al

APPENDlX "D" SPECIFI C ATION NO. IO4 66-M-203

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OUTSIDE INSIDE STRESS INTENSITY IN R EAC TOR REACTOR THis AREA MUST NOT BUILDING BUILDING EXCEED JDE ALLOWA BL:

REACTOR BUILDING WALL FLUED HEAD SKlRT (TYP SHAPE)

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