United States Nuclear Regulatory Commission - Protecting People and the Environment

12/15/1999
General Information or Other (PAR) Event#

36512


Rep Org:
Supplier:
ITT Industries
ITT Industries
Notification Date/Time:
Event Date/ Time:
Last Modification:
12/14/1999 17:10
12/14/1999
12/14/1999
(EST)
(EST)

Region: 1
City: Lancastor
County:
State: PA
            Docket #:
Agreement State: No
           License #:

 NRC Notified by:
  HQ Ops Officer:
Emergency Class:
  10 CFR Section:
21.21
Richard Ransall
Fangie Jones
Non Emergency
Unspecified Paragraph
Notifications: Harold Gray
Ann Boland
Gary Shear
Phil Harrell
Vern Hodge (Fax)
RI
R2
R3
R4
NRR

10-CFR-Part-21 Report on 3-Inch Diaphragm Valves With 3250L Actuators

"Recently, Engineered Valves was asked by a customer to perform tests and analysis documenting the maximum shutoff pressure to a diaphragm valve configuration. Based on testing and engineering calculations performed in November and December of 1999, Engineered Valves has discovered that 3" diaphragm valves with 32501 actuators, supplied to the nuclear power industry, may not be capable of bubble tight shutoff at customer specified operating conditions.

These valves were supplied to the nuclear power industry for design pressures up to 200 psig and were factory tested at or above specified shutoff pressure depending on design specification or ASME Section ill requirements. The testing and analysis described above indicate that them is a statistical possibility depending or the tolerances of each valve and actuator component that a valve can be built which will shut off bubble tight at no more than 147 psig. Therefore it is possible that a value, which has been maintained or repaired with new components or subassemblies might not have sufficient actuator thrust shut off against the specified pressure."

Purchasers and sites include the following:
Westinghouse Electric Corporation at multiple locations
TVA at Bellefonte
Louisiana Power and Light at Waterford
Toledo Edison at Davis Besse
Iowa Electric at Duane Arnold
Pacific Gas and Electric at Diablo Canyon
Consolidated Edison at Indian Point
Virginia Electric and Power Company at Surry
Florida Power and Light at Turkey Point and St. Lucie
Duke Energy Corp. at Oconee

Due to organizational and name changes, include the following names as possible organizations over the past 31 years: in Corporation, ITT Grinnell Corporation, ITT Grinnell Valve Division, ITT Dia Flo, in Specialty Valve Group, ITT Fluid Products Corporation, ITT Fluid Technology Corporation, ITT Engineered Valves, and ITT Industries. Engineered Valves is row finalizing the list of affected purchasers and will notify them by Monday, 12/20/99 (Car the NRC operations officer for ITT Engineered valves contact information.)

***********************************************************************************************************


FAX COVER SHEET

ITT Industries

Engineered Valves
33 Centerville Road
Lancaster, PA 17603
Tel. 717.509.2200
Fax 171.509.2336

Date: December 14, 1999
To: NRC Document Control
From: Richard Randall
Subject: 10 CFR Part 21 Report of Deviation Letter


If there are problems with transaction of this fax, please call Patricia Iovale at 717-509-2267
If there are questions about the fax, please contact Richard Randall at 717-609-2268

Message:

Pleas see the attached letter.


ITT Industries

Engineered Valves
33 Centerville Road
Lancaster, PA 17603
Tel. 717.509.2200
Fax 171.509.2336

December 14, 1999

NRC Document Control
NRC Operations Center
Fax No. 301-816-5151

Subject: 10 CFR Part 21 Report of Deviation

Dear Sir/Madam;

Recently, Engineered Valves was asked by a customer to perform test and analysis documenting the maximum shutoff pressure for a diaphragm valve configuration. Based on testing and engineering calculations performed in November and December of 1999. Engineered Valves has discovered that 3" diaphragm valves with 3250L actuators, supplied to the nuclear power industry, may not be capable of bubble right shutoff at customer specified operating conditions.

The deviation a to 3" diaphragm valves, supplied with Grade M or MI EPDM diaphragms, and 3250L, spring-to-close actuators with spring numbers 96 and 97. The deviation was found following waive shutoff testing rigorous statistical evaluation of maximum possible thrust-to-close requirements, worst case actuator dimensions and worst-case spring specification limits.

This analyst, and fact gathering on the requirement of purchasers/licensees, resulted in an internal non-conformance report on 12/10/99. An evaluation meeting was held today, 12/14/99 with the conclusion that Engineered Valves does not have sufficient information to determine if the deviation is a defect.

The valves ware supplied to the nuclear power industry for design pressures up to 200 psig and were factory tested at or above specified shutoff pressure depending on design specification or ASME Section III requirements. The testing and the analysis described above indicate that there is a statistical possibility depending on the tolerances of each valve and actuator component, that a valve can be built which will shut off bubble light at no more than 147 pstg. Therefore, it is possible that a valve, which has been maintained or repaired with new components or subassemblies, might not have sufficient actuator thrust to shut off against the specified pressure.

Due to our organizational and name changes, the valves in question may have been purchased from the following organizations over the past thirty-one years: ITT Corporation, ITT Grinnell Corporation, ITT Grinnell Valve Division, ITT DiaFlo, ITT Specialty Valve Group, ITT Fluid Products Corporation, ITT Fluid Technology Corporation, ITT Engineered Valves, ITT Industries.

Engineered Valves is now finding the list of affected purchasers and/or licensees a and will notify them by Monday, 12/20/99. The current list is attached to this correspondence. Concurrently, facts are being gathered and analysis performed on similar configurations. Analysis of spring designs is being performed to determine if an alternative design solution can be found which will meet the full range of requirements of tolerance.

For technical information related to this issue, please contact Richard Kovacs, Chief Product Engineer, or 717-509-2328. For information on notification of purchasers and/or licensees, contact Edwin Broome, Manager of Sales Operations, at 717-509-2207



Sincerely,



Richard Randall
Director of Engineering

cc: R. Bird
E. Broome
A. Calabria
R. Kovacs
M. Lombardi
F. Miliken
C. Mooney
K. Yohn


List of purchasers and/or licensees for the ITT Engineered Valves valves in question:

Purchaser/Licensee

Site(s)
Westinghouse Electric Corporation
Pittsburgh, PA

Multiple
TVA
Knoxville, TN

Bellefonte
Louisiana Power and Light
Taf, LA

Waterford
Toledo Edison
Toledo, OH

David Besse
Iowa Electric
Palo, IA

Duane Arnold
Pacific Gas and Electric
San Francisco, CA

Diablo Canyon
Consolidated Edison
NY, NY

Indian Point
Virginia Electric and Power Company
Mineral, VA

Surry
Florida Power and Light
Indiantown, Fl

Turkey Point/St. Lucie
Hutchinson
Duke Energy Corp.
Charlotte, NC
Oconee
Page Last Reviewed/Updated Thursday, March 29, 2012