ML19290A455
| ML19290A455 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 07/12/1973 |
| From: | John Miller METROPOLITAN EDISON CO. |
| To: | |
| Shared Package | |
| ML19290A453 | List: |
| References | |
| NUDOCS 7911070633 | |
| Download: ML19290A455 (1) | |
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u.%,..n ma s n nu METROPOLITAN EDISON COMPANY 3as ciany or cerisast ruatic uritir:ec ccaranar.c: j
'OST CFFICE BOX 542 READING. PENNSYLVANI A 19603 TELEPHONE 215 - 929 3601 July 12, 1973 Mr. James P. O'Reilly Director, Division of Compliance U. S. Ato:ic Energy Co==issien Region 1 970 Broad Street Newark, New Jersey 07102
Subject:
Three Mile Island Nuclear Station, Unit 1 Status of the Valve Wall Thickness Verification Progra=
Docket No. 50-239
Dear Mr. O'Reilly:
Your letter dated June 22, 1972 requested that we provide verifica-tion that valves over one_ inch nc=inal pipe size within the reactor coolant syste= boundary, as defined in 50.55(a) of 10 CFR 50, =eet the =ini=u= vall thickness requiremrits of specified codes and standards.
Our letter to you dated July 21, 1972 described oOr plans and schedule for verifying wall thick-nesses of the subject valves and'for maintaining the records of the pertinent data at the site.
This letter constitutes our final report as our valve vall thickness verification progra= has been ec=pleted.
A total of sixty-five. valves in Unit 1 l'arger than one inch nc=inal pipe size fall within the reactor coolant pressure boundary.
Final =easure-cents have been ec=pleted on all sixty-five of these valves.
Measure =ents of all valves show that the thicknesses =eet the standard, ANSI B16.5, specified in the purchase orders for these valves.
In su==ary, the valve wall thickness verification program for Unit 1 is co=plete and the valves have been found to have adequate vall thicknesses.
Records of our =easure=ents and evaluations are available at the site.
A Very truly,yotrs, J
j Y v*
1557 326 J. G. Miller
'V ' ce President brh CC:
Mr. F. E. Kruesi, Director of Regulatory Operations Mr. W. A. Verrochi y 91106