Part 21 Report - 1997-380
ACCESSION #: 9704010432
NOTE: This text document was processed from a scanned
version or an electronic submittal and has been
processed as received. Some tables, figures,
strikeouts, redlines, and enclosures may not have
been included with this submittal, or have been
omitted due to ASCII text conversion limitations. In
order to view this document in its entirety, you may
wish to use the NUDOCS microfiche in addition to the
DRAGON VALVES, INC. 13457 EXCELSIOR DRIVE o P.O. BOX 489 - NORWALK,
(310) 921-6605 o FAX: (310) 921-0200
March 26, 1997
U.S. Nuclear Regulatory commission
Washington, DC 20555
Subject: 10CFR21 Evaluation of Quality Assurance Deviation
Reference: Contract Numbers 88KNR-75062A & 92NNA-75604B
Watts Bar Nuclear Plant
Dragon Part Number 8N0516SED2
TVA Mark Number: 47W600-99
It has been discovered that the tubing used on the above contracts was
not properly certified by the Material Manufacturer. The tubing was
purchased and shipped from an approved vendor (Tube Sales). But, we
failed to notice that the CMTR did not contain a statement that the
tubing, manufactured by Sandvick Steel Co., was produced under their QSC
program. Sandvick is a Quality System Certificate holder, but this
material was not certified under their QSC program.
The tubing in question is 1" O.D. X 0.065 inch wall thickness, ASME SA213
TYPE 316. Tube stubs from this material were welded into our valve
bodies. A Liquid Dye Penetrant examination was performed on the weld
area, and a hydrostatic shell test and seat test was performed after
The number of valves and their serial numbers are shown on the enclosed
Code Data Reports.
Since the tubing is certified to ASME SA213 TY 316 and the tests
mentioned above were performed, Dragon Valves. Inc. does not consider
this matter to be a substantial safety hazard.
The Owners (TVA) have been notified of the defect, concurrent to your
DRAGON VALVES, INC.
Enclosures (5): Certified Material Test Report & Code Data Reports
MANUFACTURER OF VALVES FOR INDUSTRY SINCE 1945
Form "MATERIAL CERTIFICATE" omitted.
Form "FORM NPV-1 CERTIFICATE HOLDERS' DATA REPORT FOR NUCLEAR PUMPS
VALVES - As required by the Provisions of the SME Code, Section III,
Div.," 8 Pages omitted.
*** END OF DOCUMENT ***
Page Last Reviewed/Updated Friday, January 31, 2020