The concept of hydraulic valve (4)

flow control:

The flow rate is adjusted by adjusting the orifice area between the spool and the valve body and the local resistance generated by it, so as to control the movement speed of the actuator. Flow control valves are classified into 5 types according to their application.

（1）Throttle valve: After setting the area of the orifice, the movement speed of the actuator that can make the load pressure change little and the motion uniformity is not high is basically kept stable.

（2）Speed control valve: When the load pressure changes, the pressure difference between the inlet and outlet of the throttle valve can be kept at a constant value. In this way, after the area of the orifice is adjusted, the speed regulating valve can keep the flow through the throttle constant regardless of the change of the load pressure, so that the movement speed of the actuator is stable.

（3）Diverter valve: Regardless of the load, the equal flow diverter valve or synchronous valve can make the two actuators of the same oil source get the same flow rate; the proportional diverter valve can obtain the proportional distribution flow rate.

（4）Collecting valve: The function is opposite to that of the diverting valve, so that the flow flowing into the collecting valve is distributed in proportion.

（5）Diverting and collecting valve: It has two functions of diverting valve and collecting valve.