止回阀 Check valve ; [机] non-return valve ; check valve
旋启式止回阀 Swing Check Valves
立式止回阀 Vertical Lift Check Valves
对夹式止回阀 Wafer Check Valves ; wafer check ; Wafer type check valve
升降式止回阀 Lift Check Valves ; Aetv Lift Check Valve
切断式止回阀 stop check valve ; non-return valve
蝶式止回阀 butterfly check valve ; Butterfly swing check valve ; butterfly check, dual-plate wafer-type check
球形止回阀 [机] ball check valve ; ball non-return valve
蝶式缓冲止回阀 Butterfly Type Non-slam Check
锅炉止回阀 [动力] boiler check valve
安装在阀门内的止回模块其阀座应该面对阀门进口。
Check modules are installed in the valve body with the seats facing the valve inlet.
该阀门有四个功能：流量测量、止回、再循环控制和多级降压。
The valve has the four functions of flow measure, flow checking, recirculating control and multistage pressure reducing.
本发明中的止回装置既可采用单向棘 爪棘齿式离合装置，也可以采用单向滚柱超越离合器。
The block device in the invention can adopt one-way pawl-ratchet type on-off devices and one-way roller overrunning clutches.
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