ML19206B383
| ML19206B383 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/10/1979 |
| From: | Saar R HENRY PRATT CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| REF-PT21-79-113-000 NUDOCS 7905090400 | |
| Download: ML19206B383 (3) | |
Text
mxnioNa ammi xm. ruu,_ m.m LPREL HENRY PRATT COMPANY ci ca st Ive et yris u t i in:: li st fit sit I s.vstet i m 401 SQL*rII IIICifLAND AVENUE AUllOR.s, IIJJNOTS mLU7 April 10, 1979
} }-l}]-000 Huclear Regulatory Commission Region 3 Office 799 Roosevelt Road Glen Ellyn, IL 60137 Attention:
Mr. James G. Keppler, Dire tc' Office of Inspec -. Enforcement Subj ect:
Non-Comp 14..
- ti n t. Uadt - 10CFR, Part 21, Sec. 206 of i
" + cf 974 Energy R1 ga:.
4 Gentlemen:
- - made to your Mr. Charles E. Norelius on Subsequent to a teleph. s Friday, April 6, 1979, by "
P. Sur, Vice President, Engineering, Henry Pratt Company, this letter.n triplica with the following is presented:
Project Involved:
Metropolitan Edison Ccmpany Three Mile Island Unit #2 Equipment:
Pneumatic Actuators and Solenoid Accessories fur-nished with Containment Purge / Exhaust Isolation Valves Equipmmit
Description:
36" Butterfly Valve manufactured by Henry Pratt Company, Aurora, Illinois.
Pneumatic actuator system Model T-516-SR-3 manufactured by Bettis Corporation of Houston, Texas.
Solenoid valve, furnished by Bettis Corporatic.), Model HT-3331A45, manufactured by Automatic Switch Company of Florham Park, New Jersey.
Equipment Pratt Shop Order 7 4112 Identi ficatica:
Valve Tag i!AHV-2A 28 3A DT
}-). D
- i. J w
Time a Da te.tn-12:53 p.m., Thursday, Pril 5,1979 Compliance 00tected:
bed.;.;:
7 90 5 090W6 I'
. Nuclear. Regulatory Comnission April 10, 1979 L M T T l' Page 2
-J How Non-Compliance By our review of maximum capability of the equipacnt lias Detected:
at the request of Mr. T. G. Dunning of the NRC.
Participants in the M;. T. G. Dunning, Systems Analyst. Division of CVI
- Operating Reactors, Plant System Branch, NRC Hr. Ray Podealinski, Burns & Roe Mr. Bill Brown, ASCO Mr. Ronald Powell, ASCO Mr. Bill Reid, Bettis Corporation Mr. B. M. Zarolia, Henry Pratt Company Mr. A. K. Wilson, Henry Pratt Company Mr. R. P. Saar, Henry Pratt Company Description of Non-(1)
Disc holder assembly and bottom part in pilot valve assembly of the ASCO solenoid Mcdel HT-8331A45 are made of Delrin plastic, stated by ASCO, to have 5
a maximum service rating of 4 x 10 Rad integrated radiation dosage and 200 F temperature.
(2) Burns and Roe Specification #2555-100 states I
maximum environmental condition of 2 x 10 Rad integrated dosage aad 286 F maximum service temperature.
The actuator is required to operate the Butterfly Valve after exposure to these conditions.
(3)
Exposure of the Delrin parts of the solenoids to specified maximum environtrental conditions may, according to ASCO, render the solenoid unoperable.
(a)
The pneumatic actuator system is designed to open the 36" Butterfly Valve' and hold it open when the ASCO solenoid is energized and to also vent air pressure from a pneumatic cylinder to allow a hetvy coil spring to close the 36" Butterf'y Valve and hold it closed when the ASCO solenoid is de-energized.
If the ASCO solenoid is energized and unoperable and the 36" Butterfly Valve is in the open position, 25 227
Huclear Regulatory Comission IL___MT T I Page 3 P
April 10,1979 u
de-energizing the solenoid valve will not cause the 36" Butterfly Valve to clost:, and conversely; if the ASCO solenoid is de-energized and the 36" Butterfly Valve is in the closed position, energizing the solenoid will not cause the 36" Butterfly Valve to open.
Similar Equipment in Henry Pratt Company nas furnished Containment Purge /
Exhaust Isolation Butterfly Valves to other Nuclear Power Plants, and it is possible that some of those furnished and delivered prior to 1977 may have similar ASCO solenoid valves as an integral part of the actuator assembly.
Henry Pratt Company is searching its files to identify projects where such equipment may have been delivered and will, thereafter, report these to you -
offices.
Corrective Action:
Henry Pratt Company has notified the Bettis Corporation of the non-compliance and has asked Battis to determine how and when they can replace non-compliant parts.
Yours very truly, CBha.
Robert P. Saar Vice President, Engineering Henry Pratt Company RPS/jas cc Metropolitan Edison Company Burns and Roe, Inc. 220
ATTACED IS A PART 21 REPORT FROM IE t%IL UNIT - RO}1 359;/W
- EE ~
PART 21IDEKIFICAIIbf N0b7% B3-u c>C&PANY tWENe &d6. ~ DATE OF LEITER //o /7f DOCKET NO. Jo'M o ~ {/ /6/7 P ORIGINAL REPORTC SUPPLESTARY[ DATE DISTRIBUED DISTRIPUTION: REACTOR (R) V FUEL CYCE 8 SATEGUARDS(S) f%TERIALS(M) NRR/DDR(STELLO) AD/FFFEI-AD/SG-IE NRR/DR4 (BOYD) BTES/FCFS AD/ROI AD/ROI ( 2 ) PEGIONS REGIONS AD/RCI IE FIES URR/ DOR ( STE10) PEGIONS BR IPSS/SG SS-881 IE FIES (2) PDR PDR CEEP/L FIES CSUPAL FIES-SS-395 UDR CSUPAL FIES (CHRON) CEITFAL FIESCCHRO'O TEPA DE PDR IE FIES (2) LPDR CEEPAL FIES 016 lEPA P03DEUIG, PPA CEEPAL FILES (CHRO'O 303 DEGG, NPA CEEPAL FIES - SS-335 ACTION: 3 G, WA PFILIMINARY EVUALATION OF THE ATTACHED REPORT ItDICATES LEAD RESPONSIBILI FOLLad-UP AS SHChN BELOW: gg ca ass u oTHER O RCI Fsm v 279 a u [P e y f / 7,a}}