ML17346B063

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Safety Evaluation Accepting Removal of Type C Testing Requirements for Valves MOV-750 & 751 & Testing of Valves as Pressure Isolation Valves
ML17346B063
Person / Time
Site: Turkey Point  NextEra Energy icon.png
Issue date: 05/21/1985
From:
NRC
To:
Shared Package
ML17346B062 List:
References
NUDOCS 8506040056
Download: ML17346B063 (2)


Text

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~/p UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, O. C. 20555 SAFETY EVALUATION Enclosure TEST REQUIREMENTS FOR VALVES I~IOV-750 AND 751 TURKEY POINT UNITS 3

AND 4 I. Backoround By letter dated Nay 20,

1985, FPL requested that valves, NOV 750 and 751 not be reou'ired to be Type C tested.

FPL re-evaluated the requirements for the valves and determined that Type C testing in accordance with 10 CFR 50, Appendix J, is not required.

They further indicated that the valves will be tested as pressure isolation valves.

II. Evaluation FPL provided a detailed evaluation to support their determination that

valves, MOB 750 and 751, are not required to be Type C tested.

FPL states and the Containment Systems Branch concurs, that the valves are not required to perform a containment isolation function and would not become a

potential containment atmosphere leak path as long as the Emergency Core Cooling System (ECCS) is operable.

These two valves are locked closed both during normal operation and following a Loss of Coolant Accident to provide the system isolation function for proper ECCS operation.

In addition, these valves are located inside containment and will always be filled with water from either the refueling water storage tank or the containment sumps.

III. Conclusion Based on the licensees submittal and the above evaluation, we have concluded that the valves, MOV 750 and 751 are not required to have the Type C test.

Therefore, the FPL request that they be removed from the Type C test program is acceptable.

These valves will be tested as pressure isolation valves.

Dated IIay 1985 Princi al Contributors:

J.

Muang 8506040056 85052f

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PDR

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