ML20049H999

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Safety Evaluation Accepting Licensee 811002 Response Re long-term Operability of 42-inch Diameter Purge Valves
ML20049H999
Person / Time
Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 02/24/1982
From:
Office of Nuclear Reactor Regulation
To:
Shared Package
ML20049H996 List:
References
NUDOCS 8203110150
Download: ML20049H999 (1)


Text

i, e

SAFETY EVALUATION REPORT FORT CALHOUN MECHANICAL OPERABILITY OF PURGE / VENT VALVES EQUIPMENT QUALIFICATION BRANCH DIVISION OF ENGINEERING The NRC utaff has reviewed t h e Oct obe r 2,1981 submittal from Omaha Public Power in response to the NRC letters of April 6, 1981 and July 28r 1981 concerning containment purg'e/ vent valve mechanical operability.

Fort Calhoun uses 42" diameter purge valves.

Omaha Public Power District has decided not to pursJe Qualification of the 42" purge valves and wiLL limit use of these valves to the refueling and n

cold shutdown modes.

The staff interprets the licensee's response satisfying the NRC's operabtLity.

concerning the 42" valves as requirement for long term use.

Based on thise the staff does not plan any further action in the area of operability demonstration

. review of these valves.

o f O c t obe r 2 r.,19 81 t h at they The licensee indicated in the letter are e v a l u a t i n.g installation of an 8" mini purge system >thich can operate during,all modes of operation.

If it is determined the 8" mini - pu rge system is to be installede the staff will review the documentation of operability demonst ration of these valves at a later date.

8203110150 820224 PDR ADOCK 05000285 P

PDR

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