Flow control valve和Directional valves are two important control components used to regulate hydraulic oil flow and change the direction of oil flow, thereby achieving precise control of actuator speed and motion direction.

Flow control valve
· Flow control valve is mainly used to regulate the flow rate through a certain circuit in the hydraulic system, in order to control the speed of the executing components (such as hydraulic cylinders or hydraulic motors). According to their functions, Flow control valves can be divided into throttle valves, speed regulating valves, and diversion and collection valves.
Principle of Work
· Flow control valve controls the hydraulic oil flow by changing the opening of the valve port. The change in traffic directly affects the speed of the actuator, therefore, the Flow control valve can adjust the speed and load matching of the system.
Main types
· throttle valve
Function：control flow through fixed or adjustable throttling ports.
Application：In simple speed regulation scenarios, it is usually used in conjunction with an overflow valve.
· Speed control valve
Function：Maintain flow stability when the load changes.
Application：Accurate control of actuator speed, commonly used in actuator speed control systems.
· Diversion and collection valve
Function：Distribute traffic evenly to two or more executing components.
Application：Multi actuator synchronous workspace.
Applications
· Flow control valves are widely used in hydraulic systems that require speed control, such as construction machinery, hydraulic machine tools, automated production lines, etc.