Relay production line

In pneumatic circuits, the function of electromagnetic control directional valves is to control the opening, closing, or changing the direction of compressed air flow in the airflow channel. The main working principle is to use the electromagnetic force generated by the electromagnetic coil to drive the valve core to switch and achieve the reversal of airflow. According to the different pushing methods of the directional valve by the electromagnetic control part, it can be divided into direct acting solenoid valves and pilot operated solenoid valves. Direct acting solenoid valves directly use electromagnetic force to drive the spool to change direction, while pilot operated directional valves use the pilot air pressure output by the electromagnetic pilot valve to drive the spool to change direction.