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
两个 止 回阀和安全阀的阀座和阀座阀 瓣应该是可更换的，更换过程不需要特殊工具。
Seats and seat discs shall be replaceable in both check valves and the relief valve without the use of special tools.
将阀芯、定时线圈按原位装回；再装上软管，打开前端球阀。
The spool, coils regularly replace by in situ; then fitted hose, open the front ball.
深入探讨了轮速传感器、防抱死制动电子控制器、电磁阀、回液泵的结构组成与工作原理。
The construction and working principles of speed sensor, ABS ECU, electromagnetic valve and return liquid pump are analysized in detail.
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