Enhanced Component Performance Study: Air-Operated Valves 1998–2013
This report presents a performance evaluation of air-operated valves (AOVs) at U.S. commercial nuclear power plants. The data used in this study are based on the operating experience failure reports from fiscal year 1998 through 2013 for the component reliability as reported in the Institute of Nuclear Power Operations (INPO) Consolidated Events Database (ICES). The AOV failure modes considered are failure-to-open/close, failure to operate or control, and spurious operation. The component reliability estimates and the reliability data are trended for the most recent 10-year period, while yearly estimates for reliability are provided for the entire active period. No statistically significant increasing or decreasing trends were identified in the AOV failure data.
- Idaho National Lab. (INL), Idaho Falls, ID (United States). Risk Assessment and Management Services Dept.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
- DOE Contract Number:
- AC07-05ID14517; NRC-HQ-14-D-0018
- Resource Type:
- Technical Report
- Research Org:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Org:
- USDOE; US Nuclear Regulatory Commission (NRC)
- Country of Publication:
- United States
- 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; VALVES; AIR; FAILURES; NUCLEAR POWER PLANTS; RELIABILITY; PERFORMANCE; EVALUATION; OPERATION; air-operated valve; component performance; operating experience
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