ML18082A322
| ML18082A322 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 04/17/1980 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Schneider F Public Service Enterprise Group |
| References | |
| NUDOCS 8005080018 | |
| Download: ML18082A322 (5) | |
Text
Docket No. 50-272 a
UNITED STATES a
WJCLEAR REGULATORY COMMISSION W REGION I 631 PARK AVENUE KING OF PRUSSIA, PENNSYLVANIA 19406 Ap.ri 1.17, 1980 Public Service Electric and Gas Company ATTN:
Mr. F. W. Schneider Vice President - Production 80 Park Place Newark, New Jersey 07101 Gentlemen:
The enclosed IE Bulletin No. 80-09, "Hydramotor Actuator Deficiencies," is forwarded to you for action.
A written response is required.
If you desire additional information regarding this matter, please contact the Office of Inspection and Enforcement, Washington, D.C.
Enclosures:
Sincerely,
- ~~
~ Boyce H. Grier.
(/- Di rector
- 1.
IE Bulletin No. 80-09 with Attachment
- 2.
List of Recently Issued IE Bulletins CONTACT:
W. Laudan (301-492-7551) cc.w/encls:
F. P. Librizzi, General Manager - Electric Production.
E. N. Schwalje, Manager - Quality Assurance R. L. Mittl, General Manager - Licensing and Environment H. J. Midura, Manager - Salem Generating Station
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ENCLOSURE 1 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D. C.
20555
- SSINS No. 6820 Accession No.:
8002280659 HYDRAMOTOR ACTUATOR DEFICIENCIES IE Bulletin No. 80-09 Date:
April 17, 1980 Page 1 of 2 ITT General Controls (ITT-GC) reported to the NRC two (2) problem areas pertain-ing to their Models AH-90 and NH-90 Series Hydramotor Actuators.
The NH-90 designators depicts nuclear class lE design.
Either of the problems reported could affect the operation of safety-related equipment installed in nuclear power facilities:
A.
On December 7, 1979, ITT-GC reported the use of springs having incorrect material installed in Models AH-90 and NH-90 Series Hydramotor Actuators.
Instead of 5160 steel, type 1060-1070 steel was used for the No. 1 springs in the actuators.
The incorrect spring material does not meet the design strength and upon actuation of greater than 3 inches stroke, a permanent set occurs resulting in a decreased force output of up to 160 lbs, depending ori spring combinations used and specific adjustments made to the actuators.
About 368 defective springs were used between September 1975 and January 1978.
B.
On February 5, 1980, ITT-GC reported that the ITT-GC 11Selection Nomograph 11 for AH-90 and NH-90 series hydramotor actuators represent the actual spring or hydraulic forces only and do no.t include the effects of friction or residual hydraulic forces. It has been determined that the actuators can have about 100 lbs. of friction and an.additional 40 lbs. of residual hydraulic pressure.
Use of these nomographs may result i.n selection of actuators undersized for the use intended.
C.
Action to be taken by licensees and construction permit holder~
- 1.
Each licensee and each holder of a construction permit should determine whether any safety-related system or component in the facility uses an AH-90 or NH-90 series Hydramotor Actuator manu-factured by ITT General Controls.
(Note: To assist in this deter-mination a listing of customers that have purchased said actuators and the number of actuators purchased is appended hereto as Attach-ment No. 1.
Since some of the Original Equipment Manufacturers (OEM's) may delete the identity of components used in their product, it may be necessary to consult with the OEM to make the required determination.)
- 2.
Operating facilities using said actuators in safety-related systems should:
.. w"**--*
-~i>
. Enclosure 1 IE Bulletin. No; 80-09 Date:
April 17, 1980 Page 2 of 2
- a.
Review system functional testing to determining that equipment using the subject actuators are periodically tested.
- b.
Examine test records to determine whether the functional test results conform to system requirements;
- c.
Verify that ample margin exists with respect to thrust delivered to the load for long term operation considering improper spring material and methods used to select the actuator for a particular application.
- d.
Take any corrective actions required by the results of items a.
- b. and c., above.
- 3.
Facilities with constru~tion permits using said actuators in safety-related systems should:
- a.
Reevaluate actuator size selection in light of the possibility of using actuators with defective spri.ngs or which were sized by the 11Selection Nomograph" without accounting for internal friction and hydraulic resi~tance. Said reevaluation should assure that the actuators will perform their intended function.
- b.
Modify equipment qualification, preoperational and startup test programs, as necessary, to demonstrate the functional adequacy of the Hydramotor Actuator in light.of the aforementioned concerns.
Particular attention should be given to the possi-bility of defective springs taking a permanent set.
Note: ITT General Controls is presently performing actuator testing on units supplied by one of their customers (American Warming & Ventilating Co. Inc.) and revising the !Dethods used to serect actuator application.
Each licensee or holder of a construction permit should report to the NRC within 60 days of the results of actions taken, any corrective actions required, and the date when corrective actions were or will be completed.
The report should be addressed to:
U. S. Nuclear Regulatory Commission Director of Reactor Construction Inspection, O.I.E.
Washington, D.C.
20555 with a copy to the regional office.
Approved by GAO, 8180225 (R0072); clearance expires 7/31/80.
Approval was given under a blanket clearance specifically for identified generic problems.
Attachment
Attachment to IE Bulletin 80-09 Attachment No. 1 Customers ACDC Inc, Cincinnati, OH" American Warming & Ventilating Co., Inc.
Maumee, OH Copes Vulcan, Inc.
Lake City, PA Fisher Controls Co., Inc.
Marshalltown, IA Fisher Controls Co., Inc.
Corapolis, PA General Signal Corporation West Warwick, RI ITI Hammel-Dahl Warwick, RI Joy Manufacturing New Philadelphia, OH Masoneilan International, Inc.
Norwood, MA Pacific Air Products Santa Ana, CA Posi Seal International, Inc.
No. Stonington, CT Powers Regulator Co.
Portland, OR Powers Regulator Co.
Skokie, IL Ruskin Manufacturing Co.
Grandview, MO Valtek, Inc.
Springville, UT Quantities :
27 145 2
38 4
2 4
18 10 16 14 1
74 4
9 TOTAL 368
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Bulletin No.
80-02 80-03 80-04 79-018 80-05 80-06 79-03A 80-07 80-08 ENCLOSURE 2 RECENTLY ISSUED IE BULLETINS Subject Inadequate Quality Assurance for Nuclear Supplied Equipment Date Issued 1/21/80 Loss of Charcoal From 2/6/80 Standard Type II, 2 Inch, Tray Adsorber Cells Analysis of a PWR Main 2/8/80 Steam Line Break with Continued Feedwater Ad-dition Envi ronmenta 1 Qua 1 i-
. 2/29/80 fication of Class IE Equipment Vacuum Conditions 3/10/80 Resulting in Damage to Chemical Volume Control System (CVCS) Holdup Tanks Engineered Safety 3/13/80 Feature (ESF) Reset Controls
- Longitudinal Weld 4/4/80 Defects in ASME SA-312, Type 304 Stainless Steel Pipe BWR Jet Pump Assembly 4/4/80 Failure Examination of Con-4/7/80 tainment Liner Penetration Welds IE Bulletin No. 80-09 Date: April 17, 1980 Page 1 of 1 Issued To All BWRs with an Operating License (OL) or Construction Permit (CP)
All Power Reactor Facilities with an OL or CP All Power Reactor Facilities with an OL or CP All Power Reactors with an OL except SEP Plants All PWR Power Reactor Facilities with an OL or CP All Power Reactor Facilities with an OL (For Action)
All Power Reactor Facilities with a CP (For Information)
All Power Reactor Facilities with an OL or CP BWR 3 & 4's with OL (For Action)