ML19340C354
| ML19340C354 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 10/31/1980 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Finfrock I JERSEY CENTRAL POWER & LIGHT CO. |
| References | |
| NUDOCS 8011140591 | |
| Download: ML19340C354 (1) | |
Text
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f fo, UNITED STATES v
i NUCLEAR REGULATORY COMMISSION y
e j
REGION l' 8,
g 631 PARK AVENUE gt KING op PRUSSIA, PENNSYLVANIA 19406
....a October 31, 1980
,y Docket No. 50-219 T
h Jersey Central Power and Light Company O
ATTN:
Mr. Ivan R. Finfrock, Jr.
536
~
Vice President
~9 ij Madison Avenue at Punch Bowl Road g
Morristown, New Jersey 07960 G
o ro Gentlemen:
The enclosed IE Information Notice No. 80-39, " Malfunctions of Solenoid Valves Manufactured by Valcor Engineering Corporation," is forwarded to you for information.
No written response is required.
If you desire additional information regarding this matter, please contact this office.
Sincerely, So a H. Grier Director
'.:: closures:
/
1.
IE Information Notice No. 80-39 0.
List of Recently Issued IE Information Notices CCNTACT:
D. L. Caphton (215-337-5256) cc w/encis:
J. T. Carroll, Station Manager 80D NID O
SSINS No.:
6835 Accession No.:
8006020245 IN 80-39 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D. C. 20555 October 31, 1980 IE INFORMATION NOTICE NO. 80-39: MALFUNCTION OF SOLEN 0ZO VALVES MANUFACTURED BY VALCOR ENGINEERING CORPORATION PURNSE:
The intent of this Information Nocice is to alert holders of construction j
permits and operating licenses for nuclear power plants of a potentially generic problem involving the malfunctioning of certain solenoid valves manu-
)
factured by the Valcor Engineering Corporation (Valcor).
The scienoid valves so involved are designated as Valcor Valve Model No. V52600-554-1.
Valcor has informed us that these valves have only been supplied to the McGuire facility; however, since these valves were substituted for solenoid valves of another manufacturer that did not meet the requirements of IE Bulletin.No. 79-01 and its amendments, licensees and holders of construction permits should take into account the problem identified in this Information Notice prior to making any similar substitution.
BACXGROUND:
By TWX dated June 27, 1980, Yalcor submitted a preliminary 10 CFR Part 21 Report addressing the malfunctioning of Valcor solenoid valves at the McGuire facility.
The malfunctioning valves have been identified as Valcor Valve Modai No. 52500-554-L This TVX was subsequently followed by a letter dated July 3,1980, transmitting a more detailed Part 21 Report entitled," quality Assurance Report", a copy of which is attached hereto as Enclosure No.1.
In brief, the aralfunction appears to be an intermittent type wherein the valve fails to cycle from GPEN to CLOSE to OPEN imediately after a sustained period of operation in the energized (OPEN) mode.
Although the valves are rated for
" continuous operation", Valcor contends that the valves were not designed to meet the operating conditions requiring the immediate cycling from QPEN to CLOSE to OPEN after a sustaineo period of continuous energi:ation.
A major source of the problem, therefore, may be a misunderstanding of the term
" continuous operation".
By letter datad July 14, 1980 to Duke Power Company, Valcor transmitted its recomendations in this matter entitled, " Outline -
Suggested Modification Procedures", a copy of which is attached hereto as Enclosure No. 2.
Enclosures:
DUPLICATE DOCUMENT i
Entire document previously entered into system under:
ANO h M h No. of pages:
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