ML20032D527
| ML20032D527 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna  |
| Issue date: | 09/21/1981 |
| From: | Leasburg R VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-SSINS-6820 562, IEB-81-02, IEB-81-2, NUDOCS 8111170220 | |
| Download: ML20032D527 (4) | |
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' f) ") r VIROINIA EI.ECTRIC AND, POWER COMPANY, Ricnxoxo,VImoxxrA 20261
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. September 21, 1981 R. II 1 -
m no Vst a l'uomaunnt Nectuan OraMATIONM Mr. James P. O'Reilly, Director.
Serial No. 562 Office of Inspection and Enforcement
'N0/DWS,JR.:acm U. S. Nuclear Regulatory Commission Docket Nos. 50-280 Region II 50-281 101 Marietta Street, Suite 3100 50-338 Atlanta, Georgia 30303 50-339 License Noa. DPR-32.
DPR-37 fFPK-fs 1b?F-7 /%
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Dear Mr. O'Reilly:
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l RESPONSE TO I.E. Bulletin NO. 81-02
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SUPPLEMENT _
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Q, This is in response to I. E. Bulletin 81-02 Supplement dated Augu;sf.
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" Failure of Cate Type Valves to Close Against Differential Presture I. ' "Our responses for Surry Power Station Unit Nos.
- 1. and 2 and North Anna Power Station Unit Nos. I and 2 are attached.
This information contained in the attached pages is true and accurate to the best of'my knowledge and belief.
Based on a telephone call with Mr. P. D. Martin of Region II, USNRC and Mr. E.
R.
Smith, Jr. and Mr.
D.
W.
Speidell, Jr. of Vepco, an extension for this response was granted until September 21, 1981.
Very trul yours, lf l
R. H. Leasburg Attachment Notary Statement cc:
Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licens'.ng Mr. Robert A. Clark, Chief Operating Reactors Branch No. 3 Division of Licensing 8111170220 81 1
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DR ADOCK 0500 5 J)
f COMMONWEALTH OF VIRGINIA )
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CITY OF RICHMOND
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The foregoing document was acknowledged before me, in and for the City and Commonwealth aforesaid, today by R. H. Leasburg, who is Vice President-Nuclear Operations, of the Virginia Electric and Power Company. He is duly authorized to execute and file the foregoin;; document in behalf of that Company, and the statements in the document are true to the best of his knowledge and belief.
., 2;4/ -
, 19 2/
Acknowledged before me this 2, / '
day of My Commission expires:
4 34
, 19 ki Own 0 W 'W Notary Public (SEAL)
4 RESPONSE TO IE BULLETIN 81-02 SUPPLEMENT FAILURE OF GATE TYPE VALVES TO CLOSE AGAINST DIFFERENTIAL PRESSURE SURRY POWER STATION UNIT NOS. 1&2 NRC REQUEST 1.
Within 30 days of the issuance date of this bulletin supplement, ascertain whether any 1[- EMD manufactured motor-operated gate valves have been installed, or are maintained as spares for installation, in safety-related systems where they are required to close against a differential pressure.
2.
If no valves, other than those reported in response to IE Bulletin 81-02, are identified, report this to be the case. No further action is required.
RESPONSE
A review has been completed of the 1[ gate valves that have been supplied directly or indirectly from 1[ EMD.
There are no valves, other than those reported in our response to IE Bulletin 81-02, that have a closing differential pressure requirement greater than the "as shipped" differential pressure capability. In 4
addition, any valve that will be used as a replacement will be qualified for the intended service.
ESTIMATE OF MAN HOURS Approximately 5 man-hours were expended on review and preparation of this report for Surry Power Station.
RESPONSE TO IE BULLETIN 81-02 SUPPLEMENT FAILURE OF GATE TYPE VALVE TO CLOSE AGAINST DIFFERENTIAL PRESSURE NORTH ANNA POWER STATION UNIT NOS. 1&2 NRC REQUEST 1.
Within 30 days of the issuance date of this bulletin supplement, ascertain whether any }[ - EMD manufactured motor-operated gate valves have been installed, or are maintained as spares for installation, in safety-related systems where they are required to close against a differential pressure.
2.
If no valves, other than those reported in responta to IE Bulletin 81-02, are identified, report this to be the case. No further action is required.
RESPONSE
There are no 1[ - EMD manufactured motor-operated gate valves installed in North Anna Unit 1 that are within the scope of this Bulletin.
There are three (3) valves subject to this Bulletin installed in North Anna Unit 2.
These valves are MOV-2536 (type 3GM88FNH),
MOV-2373 (type 3 GM88FNB), and MOV-2289B (type 3GM99). All of these valves were installed as replacements for valves originally obtained from vendors other than Westinghouse-EMD, and were all discussed in the Vepco response to IE Bulletin 81-02.
Therefore, no further action is required.
ESTIMATE OF MANHOURS Approximately 6 man-hours were expended on review and preparation of this report for North Anna Power Station.
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