A characterization of check valve degradation and failure experience in the nuclear power industry: 1984-1990. Volume 1

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Description

Check valve operating problems in recent years have resulted in significant operating transients, increased cost and decreased system availability. As a result, additional attention has beau given to check valves by utilities (resulting in the formation of the Nuclear Industry Check Valve Group), as well as the US Nuclear Regulatory Commission and the American Society of Mechanical Engineers Operation and Maintenance Committee. All these organizations have the fundamental goal of ensuring reliable operation of check valves. A key ingredient to an engineering-oriented reliability improvement effort is a thorough understanding of relevant historical experience. A detailed review of historical failure data, ... continued below

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175 p.

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Casada, D.A. & Todd, M.D. September 1, 1993.

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Description

Check valve operating problems in recent years have resulted in significant operating transients, increased cost and decreased system availability. As a result, additional attention has beau given to check valves by utilities (resulting in the formation of the Nuclear Industry Check Valve Group), as well as the US Nuclear Regulatory Commission and the American Society of Mechanical Engineers Operation and Maintenance Committee. All these organizations have the fundamental goal of ensuring reliable operation of check valves. A key ingredient to an engineering-oriented reliability improvement effort is a thorough understanding of relevant historical experience. A detailed review of historical failure data, available through the Institute of Nuclear Power Operation`s Nuclear Plant Reliability Data System, has been conducted. The focus of the review is on check valve failures that have involved significant degradation of the valve internal parts. A variety of parameters are considered, including size, age, system of service, method of failure discovery, the affected valve parts, attributed causes, and corrective actions.

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175 p.

Notes

INIS; OSTI as TI94000623

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  • Other Information: PBD: Sep 1993

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  • Other: TI94000623
  • Report No.: NUREG/CR--5944-Vol.1
  • Report No.: ORNL--6734-Vol.1
  • Grant Number: AC05-84OR21400
  • DOI: 10.2172/145819 | External Link
  • Office of Scientific & Technical Information Report Number: 145819
  • Archival Resource Key: ark:/67531/metadc620755

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • September 1, 1993

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  • June 16, 2015, 7:43 a.m.

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  • April 8, 2016, 7:02 p.m.

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Casada, D.A. & Todd, M.D. A characterization of check valve degradation and failure experience in the nuclear power industry: 1984-1990. Volume 1, report, September 1, 1993; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc620755/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.