Construction machinery accessories front lifting stacker gearbox solenoid valve 4212221

              Hydraulic valve is an automatic component operated with pressure oil, it is

controlled by pressure valve pressure oil, usually combined with electromagnetic

pressure valve, can be used for remote control of hydropower station oil, gas,

water pipeline system. Commonly used for clamping, control, lubrication and

other oil circuit. There are direct action type and pioneer type, multi-use pioneer

type.

Pressure control

              According to the use is divided into relief valve, pressure reducing valve and

sequence valve. (1) Relief valve: can control the hydraulic system to maintain a

constant state when it reaches the set pressure. Relief valves 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 be opened and overflow to ensure

the safety of the system. (2) Pressure reducing valve: can control the branch circuit

to obtain a stable pressure lower than the main circuit oil pressure. According to the

pressure function it controls, the pressure reducing valve can be divided into fixed

value pressure reducing valve (output pressure is a constant value), fixed difference

pressure reducing valve (input and output pressure difference is a fixed value) and

fixed ratio pressure reducing valve (input and output pressure maintain a certain

proportion). (3) Sequence valve: can make an actuator (such as hydraulic cylinder,

hydraulic motor, etc.) action, and then in order to make other actuator action.