Oil reducing valve belongs to the pilot valve piston valve.
进口油用减压阀属于先导活塞式减压阀。
ASCO products include solenoid pilot valves, Angle body piston valves, linear indicators, redundant control systems, and pressure sensors.
ASCO的产品包括电磁先导阀，角体活塞阀，线性指标，冗余控制系统，压力传感器。
When the coil power, the pilot valve by the spring return, pilot hole closed throttle valve chamber pressurized by the piston return spring and thrust, the electromagnetic valve is closed.
当线圈断电时，先导阀芯靠弹簧复位，先导孔关闭，阀腔由活塞节流孔增压和复位弹簧的推力，电磁阀关闭。
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