ML20024D181

From kanterella
Jump to navigation Jump to search
Forwards Rev a to Seismic Qualification Rept of Masoneilan Control Valve & Rev C to Typical Bonnet Stress Analysis W/Seismic Conditions for Class 2 & 3 Valves, Per Re 8-inch Containment Ventilation Sys Globe Valve
ML20024D181
Person / Time
Site: Maine Yankee
Issue date: 07/28/1983
From: Garrity J
Maine Yankee
To: Clark R
Office of Nuclear Reactor Regulation
Shared Package
ML20024D182 List:
References
JHG-83-188, MN-83-153, NUDOCS 8308030276
Download: ML20024D181 (1)


Text

.

i I

6 tilAl llHEE Aleml0 Pol'IERCOMPAlW*

,uaugr,j,fu"g%

(2cn 62m21 July 28, 1983 9

m-83-153 JHG-83-188 i

Director of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, D. C.

20555 Attention: Mr. Robert A. Clark, Chief Operating Reactors Branch No. 3 Division of Licensing

References:

(a) License No. DPR-36 (Docket No. 50-309)

(b) USNRC Letter to MYAPCo dated September 1, 1982 (c) MYAPCo Letter to USNRC dated May 9, 1983 (MN-83-91)

(d) USNRC Letter to MYAPCo dated July 19, 1983

Subject:

Operability Analysis of the 8-inch Containment Ventilation System Globe Valve Reference (b) requested Maine Yankee to submit either test data or analyses which would demonstrate operability of the 8-inch containment ventilation system globe valve. Reference (c) committed Maine Yankee to provide either test data or analyses which:

Demonstrate the operability of the 8-inch globe valve and operator a.

during a DBA-LOCA: and b.

Demonstrate operability of the 8-inch globe valve and operator following a seismic event.

I In accordance with Reference (c), enclosed is the subject analysis.

Reference (d) stated that the staff did not consider this valve operable and that it should therefore be sealed closed. Since the enclosed evaluation demonstrates the operability of this valve, the valve is now considered operable.

l We trust this report is satisfactory and that it resolves your concerns mentioned in Reference (d). If you have further questions, please contact us.

l Very truly yours, MAINE YANKEE ATOMIC POWER CO WANY J/

AV hbR 0

00 R

' John H. Garrity, Senior Director p

Nuclear Engineering and Licensing

\\

JHG:bjp Qtl0 Enclosure (47 pages) f I /{

cc: Dr. Thomas E. Murley Mr. Paul D. Swetland 1364L - AJC

.