View source for LD-84-074, Forwards Summary Rept on Design Basis of Shutdown Cooling Sys Relief Valves for CESSAR Sys 80 & Summary Rept on Operability of Shutdown Cooling Sys Relief Valves for Palo Verde Units 1,2 & 3, Per 841109 Meeting

{{Adams
| number = ML20108F367
| issue date = 12/13/1984
| title = Forwards Summary Rept on Design Basis of Shutdown Cooling Sys Relief Valves for CESSAR Sys 80 & Summary Rept on Operability of Shutdown Cooling Sys Relief Valves for Palo Verde Units 1,2 & 3, Per 841109 Meeting
| author name = Scherer A
| author affiliation = ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY
| addressee name = Eisenhut D
| addressee affiliation = NRC OFFICE OF NUCLEAR REACTOR REGULATION (NRR)
| docket = 05000000, 05000470, 05000528, 05000529, 05000530
| license number = 
| contact person = 
| document report number = LD-84-074, LD-84-74, NUDOCS 8412200310
| package number = ML20101B482
| document type = CORRESPONDENCE-LETTERS, INCOMING CORRESPONDENCE, VENDOR/MANUFACTURER TO NRC
| page count = 1
}}

=Text=
{{#Wiki_filter:OE Power Systems                      Tel. 203/688-1911 Combustion Engineering. Inc.          Telex: 99297 1000 Prospect Hill Road Windsor, Connecticut 06095 POWER M SYSTEMS STN 50-470F                                       December 13, 1984 LD-84-074 Mr. Darrell G. Eisenhut, Director Division of Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555

==Subject:==
Shutdown Cooling System Relief Valve Operability

==References:==
(A) NRC letter, C.0. Thomas to A.E. Scherer, dated April 24, 1984 (B) LD-84-049, A.E. Scherer to D.G. Eisenhut, dated September 7, 1984

==Dear Mr. Eisenhut:==

Reference (A) forwarded a request for information concerning operability of the Shutdown Cooling System Relief Valves whose requirements are specified in CESSAR. Reference (B) provided the available data from testing for valves similar to the specific valves installed at Washington Nuclear Project-3 (WNP-
: 3) and Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2 and 3.
Subsequently, a meeting was held on November 9,1984 with the NRC Staff to provide a more detailed discussion of valve operability. In accordance with the agreements at that meeting, Attachment 1 is provided to describe the design criteria for the CESSAR Shutdown Cooling System and the sizing criteria for that system's relief valves. The actual brand name and model number of the valve may vary from one plant to another. Attachment 2, however, provides a representative illustration of information provided to the Staff to substantiate operability of the valves installed at PVNGS.
It was our understanding from the November 9,1984 meeting that submittal of this information would fully address the NRC's concern on Shutdown Cooling System Relief Valve operability and thus close the issue for CESSAR. If you have any questions or comments, please feel free to call me or Mr. T. J.
Collier of my staf f at (203) 285-5215.
Very truly yours, COMBUSTION ENGINEERING, INC.
0412200310 841213 PDR ADOCK 05000470                             /v      [ / mud)   ,
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A                         PDR                  A. E. Scherer Director Nuclear Licensing AES:jld Attachments                                                                     god cc: P. Moriette (NRC)                                                             '
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