To introduce the structure, performance and design of the differential stop check valve.

介绍了差压式截止止回阀的结构、性能和设计要点。

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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。

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