ML20196B497

From kanterella
Jump to navigation Jump to search

Discusses Facility Review of License Amend 117.Globe Design Has Been Selected for Use in Application Due to Excellent Seating Ability & History of Low Maint & Reliable Operation as Isolation Valve
ML20196B497
Person / Time
Site: Yankee Rowe
Issue date: 11/29/1988
From: Papanic G
YANKEE ATOMIC ELECTRIC CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
FYR-88-156, TAC-68715, NUDOCS 8812060276
Download: ML20196B497 (1)


Text

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _

' YANKEE ATOMIC ELECTRIC COMPANY "C"N*.*llll*;*l" 580 Main Street, Bolton, Massachusetts 01740-1398

'v.

November 29, 1988 FYR 88-156 United States huclear Regulatory Conrnission Document Control Desk Washington, DC 20555

References:

(a) License No. DPR-3 (Docket No. 50-29)

(b) YAEC Letter to USNRC, NYR 88-286 Amendment No. 117 "Adding Four Isolation Valves in Two Spare Penetrations to Table 3.6-1. Containment Barriers," dated October 14, 1988 (c) YAEC Letter to USNRC, FYR 88-90, dated June 27, 1,988

Subject:

Yankee Review of License Amendment No. 117 (PC-219:

TAG No. 68715)

Dear Sir A review o' the NRC safety evaluation in Reference (b) disclosed one inconsistency. Although Reference (c) and the safety evaluation of Reference (b) refer to each of the subject valves as gate valves, globe valses are being used.

The globe design has been selected for use in this application due to its excellent seating ability and history of low maintenance and reliable operation as an isolation valve. This design valve is used extensively within many systems at the Yankee plant as a system isolation valve, including other containment isolation applications.

This clarification does not affect Amendment No. 117. This letter is being issued for your information only.

We trust that you will find the above satisfactory; however, should you desire additional information, please contact us.

Very truly yours, YANKEE ATOMIC LECTRIC COMPANY George Papanic, Jr.

Senior Project Engineer GP/0033v Licensing cct USNRC, Region I I

USNRC, Resident Inspector - YNPS 0i 1

1 0 8G12060276 881129 PDR ADOCK 05000029 P

PDC

.