Application of reliability technique in the valve of the space vehicle

In view of the high reliability requirement of the valve of the space flight, reliability technique is applied aiming at improving reliability of the valve. As a kind of typical mechanic product, the character and emphasis of FMECA and FTA about the valve is summarized. Reliability index and reliability allocation approach of the valve are presented. The problems of the valve reliability test are analyzed. It can be concluded that Application of Reliability technique in the valve of the space vehicle is an important and effective approach.