ENS Event | |
|---|---|
05:00 Feb 10, 2015 | |
| Title | Part 21 Report - Weir Valves and Controls Spline Adapter Vibrated Loose |
| Event Description | This report was received from Weir Valves & Controls via email:
During a walk down it was discovered that one of the spline adapters had slipped down the shaft of a TRICENTRIC valve supplied by Weir Valves & Controls, USA. This condition could have allowed the valve disc/stem to move from its normally open position to a partially closed or fully closed position. Weir Valve and Controls determined that the valve is designed with a single set screw tightened against the stem key and is susceptible to Human Performance Factors if it is not properly tightened against the shaft. Name of Manufacturer: Weir Valves and Controls, USA Affected Component: TRICENTRIC Triple Offset Valve Affected Plant(s): Peach Bottom Atomic Power Station |
| Where | |
|---|---|
| Weir Valves & Controls Usa, Inc. Ipswich, Massachusetts (NRC Region 1) | |
| Organization: | Weir Valves & Controls Usa, Inc. |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+33.87 h1.411 days <br />0.202 weeks <br />0.0464 months <br />) | |
| Opened: | Arthur C. Butters 14:52 Feb 11, 2015 |
| NRC Officer: | Jeff Herrera |
| Last Updated: | Feb 11, 2015 |
| 50811 - NRC Website | |
Weir Valves & Controls Usa, Inc. with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 508112015-02-10T05:00:00010 February 2015 05:00:00
[Table view]10 CFR 21.21(d)(3)(i), Failure to Comply or Defect Part 21 Report - Weir Valves and Controls Spline Adapter Vibrated Loose 2015-02-10T05:00:00 | |