To introduce the structure, performance and design of the differential stop check valve. It has the features of novel design, small moment in operation and seal reliability.

介绍了差压式截止止回阀的结构、性能和设计要点。该阀操作力矩小，密封可靠，运行平稳。

youdao

To introduce the structure, performance and design of the differential stop check valve. It has the features of novel design, small moment in operation and seal reliability.

介绍了差压式截止止回阀的结构、性能和设计要点。该阀操作力矩小，密封可靠，运行平稳。

youdao