ENS Event | |
|---|---|
06:00 Oct 23, 2023 | |
| Title | Part 21 Report - Defect in Valcor Solenoid Valves |
| Event Description | The following is a synopsis of information received via facsimile:
Valcor Engineering Corporation (VEC) identified a defect with Valcor solenoid valves with part number V52600-5890-1 on October 23, 2023. The defect identified is that stroke matching of internal components was not performed in accordance with internal procedures causing valve flow coefficient (Cv) to be only approximately 50 percent of the minimum required Cv of 2. Substantial safety hazard could be created if the flow rate through the solenoid valve exceeded a certain threshold. VEC has identified two of these solenoid valves at LaSalle County Nuclear Generating Station (LaSalle) with serial numbers 33 and 34. For corrective actions, VEC repaired and returned the valve with serial number 34 to LaSalle. To prevent recurrence, VEC intends to improve the training program for production personnel and, if needed, review and revise the stroke matching procedure including enhancing quality assurance oversight of that process. VEC estimates it will take 30 days to complete corrective actions. Currently, LaSalle is the only known affected facility. Valcor is in the process of identifying and notifying affected customers. For additional information, please contact Mike Swirad, Valcor Engineering Quality Assurance Director (973-467-8400 x 7223), email: mikeswirad@valcor.com |
| Where | |
|---|---|
| Valcor Engineering Corporation, Valcor Brookfield Township, Illinois (NRC Region 3) | |
| Organization: | Valcor Engineering Company |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+1446.65 h60.277 days <br />8.611 weeks <br />1.982 months <br />) | |
| Opened: | Michael Swirad 13:39 Dec 22, 2023 |
| NRC Officer: | Ernest West |
| Last Updated: | Dec 26, 2023 |
| 56907 - NRC Website
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Valcor with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 569072023-10-23T06:00:00023 October 2023 06:00:00
[Table view]10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Defect in Valcor Solenoid Valves ENS 559992022-05-19T04:00:00019 May 2022 04:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect, 10 CFR 21.21(a)(2), Interim Report for Comply or Defect in Component Part 21 Report - Potential Premature Failures of Valcor Coil Shell Assemblies ENS 524072016-12-05T05:00:0005 December 2016 05:00:00 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 - Non-Conforming Cover Machining on Solenoid Valve 2023-10-23T06:00:00 | |