Solenoid valve according to the role of classification:
1. Switching solenoid valve, that is, the role of the switch, when there is a current flow, the solenoid valve control line or oil circuit on and off.
2. Proportional solenoid valve, that is, according to the size of the input current is different, the output pressure is different, when changing the input current, you can change the solenoid valve output pressure, mostly used in hydraulic systems.
