ML20037D410

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Informs That Safety Relief Valves Will Perform Intended Function,In Response to NUREG-0737,Item II.D.1.Test Valve Qualification Not required.Stuck-open Power Operated Relief Valve Not Required to Ensure Safe Shutdown
ML20037D410
Person / Time
Site: Calvert Cliffs  Constellation icon.png
Issue date: 07/02/1981
From: Lundvall A
BALTIMORE GAS & ELECTRIC CO.
To: Eisenhut D
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.D.1, TASK-TM NUDOCS 8107100204
Download: ML20037D410 (1)


Text

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l 3ALTI M ORE GAS AND ELECTRIC CHARLES CENTER *P.O. BOX 1475 BALTIMORE, MARYLAND 21203 ARTHUR E. LUNDVALL, JR.

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Office of Nuclear Reactor Regulation f

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Mr. D. G. Eisenhut, Direr t/

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,N Division of Licensing

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Subject:

Calvert Cliffs Nuclear Power Plant Units Nos. 1 & 2; Dockets Nos. 50-317 & 50-318 Response to NUREG-0737 Item II.D.1

Reference:

(a) Letter from R. C. Youngdahl (EPRI-RAC) to H. R.

Denton (NRC-NRR), dated July 1, 1981.

Gentlemen:

By letter dated July 1,1981, R. C. Youngdahl of Consumers Power (reference (a)) transmitted the Interim Data Report for the EPRI PWR Safety Relief Valve Test Program. This report summarizes the test data collected to date on relief valves (safety valve data is still not available).

Calvert Cliffs Nuclear Power Plant has a Dresser Model 31533VX-30 relief valve rnd Dresser Model 31739A safety valves. Results provided in section h.1 of the EPRI Interim Data Report are applicable to our plant. Our preliminary evaluation of the data indicates that our valves will perform their intended function. BG&E vill submit final evaluations on a schedule consistent with the R. C. Youngdahl letter of December 15, 1980 and modified on July 1,1981.

Our position on block valves is that a test progran for block valve qualification is not required since isolation of a stuck-open PORV is not required to ensure safe chutdown.

Sincerely _,

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Mr f*oYb cc:

J. A. Biddison, Esquire G. F. Trowbridge, Esquire

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Mr. E. L. Conner, Jr. - NRC jg 9107100204 810702 PDR ADOCK 05000

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