中文摘要：

阀门在重要系统中的运用对阀门提出高可靠性的要求，相应的可靠性研究显得越来越重要。从阀门的可靠性分析、可靠性设计、可靠性试验和提高可靠性的措施等4个方面总结了阀门可靠性技术研究的现状，分析了阀门可靠性研究存在的问题及其发展趋势。指出阀门失效机制的理论研究、阀门可靠性试验与评估方法的研究和阀门可靠性数据库的建立是今后阀门可靠性研究的重点内容。

英文摘要：

Study of valve reliability is becoming more important due to its application in the vital systems. The present state of valve reliability analysis, reliability design, reliability testing and measure in improving reliability was summarized. The problems of valve reliability study and the trend of its development were analyzed. The conclusion that the emphases of valve reliability study are the theoretic research of valve failure, methodology of reliability testing and assessment and establishment of valve reliability database was drawn.