这种总成应该由两个正向密封止回阀， 两边夹着两个弹性阀座关闭阀， 并配置一个液压平衡旁路管线和四个测试旋塞构成。
The assembly shall consist of two positive seating check valves located between two resilient seated shutoffs with a hydraulically balanced bypass line and four test cocks .
液压传动。减压阀、顺序阀、卸荷阀、节流阀和止回阀。安装面。
Hydraulic fluid power - Pressure reducing valves, sequence valves, unloading valves, throttle valves and check valves - Mounting surfaces.
液压传动。减压阀、顺序阀、卸荷阀、节流阀和止回阀。装配面。
Hydraulic fluid power - Pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves - Mounting surfaces.
液压传动。减压阀、顺序阀、卸荷阀、节流阀和止回阀。安装面。
Hydraulic fluid power -pressure reducing valves, sequence valves, unloading valves, throttle valves and check valves - Mounting surfaces.
液压传动。减压阀、顺序阀、卸载阀、节流阀和止回阀。装配面。
Hydraulic fluid power - Pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves - Mounting surfaces.
液压传动。减压阀、顺序阀、卸载阀、节流阀和止回阀。装配面。
Hydraulic fluid power - Pressure-reducing valves, sequence valves, unloading valves, throttle valves and check valves - Mounting surfaces.
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