ML19241B537

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Responds to IE Bulletin 79-04.Review of All Seismic Category I Piping Sys Determined That 1,500 Psi Velan Check Valves Installed in 3-inch Discharge Line of Each HPI Pump. Reanalysis of Affected Piping Initiated
ML19241B537
Person / Time
Site: Oconee  Duke Energy icon.png
Issue date: 05/30/1979
From: Parker W
DUKE POWER CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 7907180883
Download: ML19241B537 (2)


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DuIin POWEIZ COMPANY, f

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May 30, 1979

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i Mr. James P. O'Reilly, Director U. $. Nuclear Regulatory Commission Regfon II 101 Marietta Street, Suite 3100 Atlantn, Georgia 30302 Re:

RII:JPO 50-269 50-270 50-287

Dear Mr. O'Reilly:

With regard to your letter of March 30, 1979 and my letter of May 2, 1979, please find attached Duke Powar Company's response to IE 'Bulletin 79-04 for Oconee Nuclear Station.

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Ve truly yours l

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William O. Parker, Jr.

RLG:ses Attachment cc:

U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Division of Reactor Construction Inspection Washington, D. C.

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DUKE POWER COMPANY OCONEE NUCLEAR STATION Response to IE Bulletin 79-04 Duke Power Company has reviewed all Seismic Category I piping sysyees and has 1500 psi Velan check valves were installed in thei-inch dis-3 determined that charge line of each high pressure injection (HPI) pump of each Ocypee unit.

c. these lines.

An.3ncorrectvalveweightwasusedinthepipinganalysis A teanalysis of the affected HPI piping has been initiated to determine if additional supports or restraints are required.

The computer code SUPERPIPE is being utilized in this analysis.

A report will be submitted upon completion of this analysis, which is expected to be completed by June 29, 1979.

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