Working Principle

SDHZE-A-073-L5 command signal is amplified by the proportional amplifier and output current to the proportional solenoid of the proportional valve, the proportional solenoid outputs force and moves the position of the spool proportionally, so that the flow of liquid can be controlled proportionally and the direction of liquid flow can be changed, thus realizing the position or speed control of the actuator. In some applications that require high position or speed accuracy, a closed-loop control system can be formed by detecting the displacement or speed of the actuator. Proportional valve consists of DC proportional solenoid and hydraulic valve two parts, proportional valve to achieve continuous control of the core is the use of proportional solenoid, proportional solenoid types, but the working principle is basically the same, they are based on the proportional valve control needs developed.