Hydraulic manual adjustable pressure relief valve YF06-00A

Pressure control editor According to the purpose, it is divided into overflow valve, pressure reducing valve and sequential valve.

⑴ Overflow valve: It can control the hydraulic system to keep a constant state when it reaches the set pressure. Overflow valves used for overload protection are called safety valves. When the system fails and the pressure rises to the limit value that may cause damage, the valve port will open and overflow to ensure the safety of the system.

⑵ Pressure reducing valve: It can control the branch circuit to obtain a stable pressure lower than that of the main circuit. According to the different pressure functions it controls, the pressure reducing valve can be divided into fixed-value pressure reducing valve (the output pressure is constant), fixed-difference pressure reducing valve (the pressure difference between input and output is fixed) and fixed-ratio pressure reducing valve (a certain proportion is maintained between input and output pressure).

⑶ Sequence valve: It can make one actuator (such as hydraulic cylinder, hydraulic motor, etc.) act, and then make other actuators act in sequence. The pressure generated by the oil pump first pushes the hydraulic cylinder 1 to move, and at the same time, it acts on the area A through the oil inlet of the sequence valve. When the hydraulic cylinder 1 moves completely, the pressure rises, and after the upward thrust acting on the area A is greater than the setting value of the spring, the valve core rises to make the oil inlet communicate with the oil outlet, so that the hydraulic cylinder 2 moves.

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