ML20126L289

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Forwards Analysis of A&M 24-Inch Purge Valve, Disc Impact Velocity for Containment Ventilation Sys Check Valve Closure, & Closure Analysis of Containment Ventilation Sys Check Valve
ML20126L289
Person / Time
Site: Big Rock Point File:Consumers Energy icon.png
Issue date: 05/26/1981
From: Hoffman D
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: Crutchfield D
Office of Nuclear Reactor Regulation
Shared Package
ML20126L292 List:
References
NUDOCS 8106020288
Download: ML20126L289 (1)


Text

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CORSum8f5 q[gg POW 8r Company pI' e

General Cffices: 212 West M:chigen Avenue Jaci< son, Michigan 40201

  • Area Code 517788 0560 May 26, 1981  ;,y

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Director, Nuclear Reactor Regulation

! Att Mr Dennis M Crutchfield, Chief p"g -

N Operating Reactors Branch No 5 g E US Nuclear Regulatory Commission Q y Washington, DC 20555 DOCKET 50-155 - LICENSE DPR BIG ROCK POINT PLANT - VENTILATION VALVE QUALIFICATION PROGRAM FOR CONTAINMENT PURGING AND VENTING DURING NORMAL OPERATION f Consumers Power Company letter dated October 2h, 1980 provided containment ventilation valve qualification information in* response to NRC letter dated l

September 27, 1979 The following information is provided as the qualifica-tion documentation for the sving-check valves ( Atwood & Morrill) as committed f to in our October 2h, 1980 letter:

l JHA Report No. JHA-79-138, April Ib, 1980 MPR Letter No. P-522, May 2, 1980 ,

i MPR Report No. MPR-6hh, Rev. 1, June 1980

( JHA Report No. JHA-81-138A, February 20, 1981 A&M Letter, February 2h, 1981 ,

MPR Letter No. P-81-lh, March 2h, 1981 l f JHA Letter, April 21, 1981 .

( JHA Letter, May 1, 1981 A&M Letter, May 8, 1981 Six (6) copies of each of the above documents are being transmitted with this letter to the Director, Nuclear Reactor Regulation. The documentation provided with this letter and our October 2h,1980 letter establishes the qualification of the containment ventilation valves for the dynamic forces that may result from a DBA-LOCA event.

David P Hoffman (Signed)

David P Hoffman Nuclear Licensing Administrator CC Director, Region III, USNRC l NRC Resident Inspector - Big Rock Point

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