Pressure control valve series
https://flic.kr/p/AVLgf3 | YS Sequence Valve | YS pilot-operated sequence valve is used to control action sequence of actuators in hydraulic systems so as to achieve automatic control. By changing the control mode, it can serve as back pressure valve, unload valve, bypass valve and sequence valve. In addition, an internal supply internal discharge or an external supply internal discharge sequence valve can also be used as a balance valve if it includes a check valve.
https://flic.kr/p/AiZfGq | YX& YXW Unloading relief valve | YX&YXW valve is a pilot-operated unloading valve. Its function is to switch two states in hydraulic system, by adjusting handle to set the working pressure or unloading pressure. Pump will be unloading automatically by controlling electrical magnetic. Explaination: 1. Item 1), 2), 3), 4), 5) is used in YXW solenoids relief valves 2. Item 2) damping is fixed at the B oil port of the solenoids directional valves