PNO-II-87-051, on 870724,DOE,Oak Ridge Operations Ofc Notified NRC of Potential for Cracks in 1-inch Valves Used on UF6 Cylinders.Seven Valves Cracked Upon Installation Onto Cylinder.Doe Recommends That Valves Be Replaced

PNO-II-87-051:on 870724,DOE,Oak Ridge Operations Ofc Notified NRC of Potential for Cracks in 1-inch Valves Used on UF6 Cylinders.Seven Valves Cracked Upon Installation Onto Cylinder.Doe Recommends That Valves Be Replaced

ML20236J734
Person / Time
Site:	Erwin, 07001113, 04003392
Issue date:	07/27/1987
From:	Cline W, Mcalpine E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
References
PNO-II-87-051, PNO-II-87-51, NUDOCS 8708060264
Download: ML20236J734 (1)

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July 27e 1987 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PNO-II-87-51 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or Epublic interest significance. The .information is as initially received without verifi-cation or evaluation, and is basically all that is known by the Region II staff on this ,

date.

FACILITY: Nuclear Fuel Services, Inc. Licensee Emergency Classification:

Nuclear Fuel Processing Facility Notification of Unusual Event Docket No: 70-143 Alert Erwin, Tennessee Site Area Emergency General Emergency General Electric Company X Not Applicable Docket No: 70-1113 4 Wilmington, North Carolina Allied Chemical l Docket No: 40-3392 i' Metropolis, Illinois

SUBJECT:

GENERIC ' PROBLEM 0F CRACKS IN ONE-INCH UF6 CYLINDER VALVES On' Friday, July 24, 1987, the U.S. DOE, Oak Ridge Operations Office, Safety Division, notified NRC of a potential for cracks in one-inch valves used of UF6 cylinders. This type of valve is used on Models 48, 30A and 30B cylinders. The manufacturer of the potentially defective valves is Superior Valve Company. Only lots 17 and 20 (stamped on valves) are known to be involved. A cylinder manufacturer notified DOE that seven of these valves cracked upon installation onto cylinders. Of the 2,202 valves manufactured,1,784 were designated for DOE use and 418 were designated for private sector. DOE has determined that some of the valves are in the possession of NFS, GE, and Allied Chemical. Region III is aware of this matter. DOE considers that any of these valves which are on cylinders which have been filled are probably safe; however, DOE recommends their replacement as a conservative action.

Licensees have.been notified.

The States of- Tennessee and North Carolina have been notified.

This information is current as of 11:30 a.m. (EDT) on July 27.

Contact:

E.'McAlpine, 242-5547 W. Cline, 242-0346 DISTRIBUTION:

H. Street MNBB Phillips E/W W111ste Mail:

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