ML20215L597
| ML20215L597 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 06/18/1987 |
| From: | Gallagher J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Butler W NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM), Office of Nuclear Reactor Regulation |
| References | |
| GL-87-06, GL-87-6, NUDOCS 8706260111 | |
| Download: ML20215L597 (3) | |
Text
i PHILADELPHIA ELECTRIC COMPANY 1
2301 MARKET STREET j
P.O. BOX 8699 PHILADELPHI A. PA.19101 (215) 841 5001 JOSEPH W.GALLAGHER
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June 18, 1987 Docket No. 50-352 Mr.-Walter Butler, Director Project Directorate I-2 Division of Reactor Projects I/II U.S. Nuclear Regulatory Commission ATTN: Document. Control Desk Washington, D.C.
20555
SUBJECT:
]
Periodic Verification of Leak Tight j
Integrity of Pressure Isolation Valves j
Dear Mr. Butler:
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The subject Generic Letter required licensees "
to submit a list of all pressure isolation valves (PIV) in your plant.
For each valve, describe the periodic. tests or other measures performed to assure the integrity of the valve as an independent barrier at the Reactor Coolant Pressure Boundary (RCPB) along with the acceptance criteria for leakage, if any, 1
operational limits, if any, and frequency of test performances...
If current plant Technical Specifications require leak rate testing for all PIVs in the plant, your reply to that effect will be sufficient."
Pressure Isolation Valves (PIVs) are defined for each interface as any two valves in series within the reactor coolant pressure boundary which separate the high pressure reactor 1
coolant system from an attached low pressure system.
These valves are normally closed during operation.
8706260111 870610 kf PDR ADDCK 05000352 G
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i Mrc Walter R. Butler June 18, 1987 Page 2
Response
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The attached table lists Pressure Isolation Valves (PIV).
These I
valves are included in Table 3.6.3-1 of the Limerick Technical k
Specifications as containment isolation valves and are therefore leak tested in accordance with 10CFR50 Appendix J.
In addition, these valves are also subject to ASME Section XI leak-testing j
once per 18 months with an acceptance criteria of 1 gpm and a test pressure of 950 + 10 psig.
1 Very truly yours, k
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Attachment cc:
Addressee E. M. Kelly, Senior Resident Site Inspector W. T. iossell, Idministrator, NPC, Region I J
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