The importance of hydraulic valves in hydraulic systems

1. Hydraulic control valve (referred to as hydraulic valve) is a control element in the hydraulic system, which is used to control the pressure, flow and flow direction of the fluid in the hydraulic system, so as to meet the requirements of different actions of various actuators.

2. Hydraulic control valves can be divided into three categories according to their functions: directional control valve, pressure control valve and flow control valve. Correspondingly, these valves can form three basic circuits: direction control circuit, pressure control circuit and speed regulation circuit. According to different control methods, hydraulic valves can be divided into ordinary hydraulic control valves, servo control valves, and proportional control valves. According to different installation forms, hydraulic valves can also be divided into several types such as tube type, plate type and cartridge type.

3.Directional control valve, the control element used to change the flow direction of gas or liquid in the pipeline is called directional control valve. Generally named after several digits.

4. Pressure control valve, pressure control valve (pressure control valve) is the general term for pressure control valves. In normal times, we refer to the valves that control pressure as pressure control valves. Pressure control valves are sometimes referred to as pressure valves for short, and are mainly used to meet the force or torque requirements of the actuator. Includes safety valves, relief valves, pressure reducing valves and sequence valves.

5. Flow control valve, flow control valve is a valve that controls the flow of the orifice by changing the fluid resistance of the orifice under a certain pressure difference, thereby adjusting the movement speed of the actuator (hydraulic cylinder or hydraulic motor). Flow control valves mainly include throttle valves, speed regulating valves, overflow throttle valves and diverting and collecting valves.

6. Generally speaking, the hydraulic valve is an indispensable part of a hydraulic circuit. Moreover, the needs of different system loops are formed through the mutual combination of various valves.