Tractor hydraulic valve


first. Tractor hydraulic valve

Tractor hydraulic valve is an indispensable part of the hydraulic system, mainly used to realize the automatic, remote or program control of the hydraulic system. Common hydraulic control valves include flow valves, pressure valves, directional valves, proportional valves and other types.

1. Flow valve

The flow valve can control the working speed of hydraulic equipment by controlling the flow of fluid. Generally, it is divided into throttle valves, speed control valves, flow distributors, etc.

2. Pressure valve

The pressure valve can ensure the pressure range of the hydraulic equipment during operation through the control of the fluid pressure. Common pressure valves used in hydraulic systems include safety valves, check valves, pressure reducing valves, etc.

3. Directional valve

Directional valves are used to realize the direction control of fluids in hydraulic systems, and there are many types such as 2/2 way, 3/3 way, 4/4 way, etc. It can control the orientation of actuators such as sensors, actuators, hydraulic motors, etc. in the system.

Second, the safety valve

A safety valve is a protective device in a hydraulic system to prevent dangerous situations due to excessive pressure in the system. In general, it is set in the range of 1.1 to 1.5 times the maximum working pressure, and once the system pressure exceeds the limit value, the valve will be opened, and the excess fluid will be removed from the system, so as to achieve the safety of the system.

Third. Relief valve

The relief valve is also a safety device in the hydraulic system, which can adjust the pressure and return the fluid to the hydraulic tank when an overload occurs inside the system to protect the safety of the system and the machine. Common relief valves include general relief valves, overflow speed control valves, etc.

Fourth, the reversing valve

The directional valve is a control unit in the hydraulic system that is used to switch the flow direction of the fluid between different oil circuits. Common reversing valves include 2/2 directional valves, 3/3 directional valves, 4/4 directional valves, etc.

The above are the types of valves used in the hydraulic system of tractors and their functions. The application of hydraulic system valves will realize the functions of high efficiency, fuel saving, and safety of automobiles.


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