ENS 50888

v t e ENS Event
04:00 Mar 13, 2015
Title	Improper Weld Used on Gate Valve Cover
Event Description	The following was received from the licensee via email: This notification is being submitted pursuant to the guidelines of 10 CFR Part 21 to report that, during the manufacturing of a replacement cover for a 24 inch gate valve on the reactor recirc line at Exelon LaSalle, Weir Valves and Controls used a weld that was not compliant to ASME Ill Subsection NB requirements. During review of the weld at site, the question was raised based on site procedures required a 2:1 profile in accordance to EPRI guidelines. During review of the documentation to determine if the 2:1 profile was required in this case, Weir Valves and Controls determined that improper weld call out was used on the design prints. The weld was corrected at site to meet the both ASME Ill Subsection NB requirements and EPRI guidelines. Weir Valves and Controls has performed an extent condition review and has concluded that no other undersized welds were made and delivered to any other operating sites. The root-cause of the issue was the improper call-out of the weld by design engineering. Weir Valves and Controls is performing corrective actions to ensure future re-occurrences cannot occur in design engineering.

ENS 50888 +/-
Where
Weir Valves And Controls Usa Inc. Ipswitch, Massachusetts (NRC Region 1)
Organization:	Weir Valves And Controls Usa Inc.
Reporting

10 CFR 21.21(d)(3)(i), Failure to Comply or Defect
Time - Person (Reporting Time:+11.8 h0.492 days <br />0.0702 weeks <br />0.0162 months <br />)
Opened:	Arthur Butters 15:48 Mar 13, 2015
NRC Officer:	Daniel Mills
Last Updated:	Mar 13, 2015
50888 - NRC Website
v • d • e

v t e Emergency Notification System
Weir Valves And Controls Usa Inc. with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect
WEEKMONTHYEAR2015-03-13T04:00:00 [Table view]
[ENS list for Weir Valves And Controls Usa Inc.]

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