ML19224C112

Forwards Noncompliance Rept Re Pneumatic Actuators & Solenoid Accessories Which May Not Comform to Specs. Investigation Under Way to Determine Similar Values

ML19224C112
Person / Time
Site:	Crane
Issue date:	04/11/1979
From:	Krauss R GH-BETTIS CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
REF-PT21-79-113-001 79-113-001(R), 79-113-1(R), NUDOCS 7906290026
Download: ML19224C112 (4)

Text

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Director, Region IV

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Office of Inspection and Enforcetant.

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flon-Compliance Reporting Under 10CFR, Part 21.,

Sec. 20G of Enargy Reorganization Act of 1974 Ref ere. ice :

Hetropolitan Edison Company Three Mile Island Unit #2

Dear Sir:

Attach 3d is a copy of a report received by Gil-Bettis Tuesday, April 10, 1979 at 11:00 a.m.

from the Henry Pratt Company to the NRC Region III of fice concerning a non-conformi ty of equip-ment presently installed at the referenced installation.

Iht equipmant in question is a solenoid valve, Model HT-8331A43, manuf actured by Automatic Switch Company of Florha.n Park., llev.-

Je rs ey.

It is used to control Bettis Model T-516-SR-3 pneunt ti:,

spring return valve actue. tors installed on 35" butterfly valW.s manufactured by the Henry Pratt Compa m us ed as con tainmeni-pu rg e / exha us t isolation valves.

The.a.tuators and valves '.wre shipped to the Henry Pratt Company Mcy 26, 1972.

We are sem chint our files to determine where else these solenoid valves are Inin 4 used.

As indicated i n Henry Pratt '.; report, the non-conformity coatern, parts in the ASCO solenoid valve made of Delrin plastic anj,Iad as stated by ASCO, has a maximum servigo lind tation of 4 x 10 intngrated radiation. dosage and 200*F temperature.

We have icn-tacted ASCO, who is now in the process 'of determining the po siM:

connequence of using _Dalrin,, material in service conditions m a t.n.

than thase estabMshed 1.fu.its.

Upon receipt of their resp'm,

i.

inform you of their findings and recemnendations.

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Metropolitan Edison Company

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Three Mile Island Unit.#2 Pneumatic Actuators and Solenoid Accessories furnirhed

. Equipment:

with Containment Purge / Exhaust Isolation Valves 36" Butterfly Valve manufactured by Henry Pratt Coupany, Equipment

==

Description:==

Aurora, Illinois. Pneumatic actuator system Model T-516-SR-3 manufactured by Bettis Corporation of Houstom Texas. Solenoid valve, furnished by Bettis Corpoatkn.

Model HT-8331A45, manufactured by Automatic Sw1N.b Company of Florham Park, New Jersey.

( Equipment Pratt Shop Order 7-4112

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Non-Conformity Detacted:

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Mr. B. M. Zarolia, Henry Pjatt Company Mr. A. K. Wilson, Henry Pratt Company Mr. R. P. Saar, Henry Pratt Company Descr:otion of (1) Disc holder assembly and bottom part in'pilct Non-Conformity:

l valve assembly of the ASCO solenoid are made of Delrin plastic, stated by ASCO, to have a maximum 5

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service limitation of 4 x 10 Rad. integrated radiation dosage and 2000F temperature.

l (2) Bums and Roe Specification #2555-100 states 7

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(3) Exposure of the Delrin parts of the solenoids to 1

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