The operation of bistable solenoid valve
Bistable solenoid valves power supply pulsating 120V direct current, can be positive or negative. When the pulsating dc voltage of different polarity is applied to the solenoid coil, the spool will move in different directions. When power is stopped, the spool will stop at the end of the movement. There is only body and coil inside the bistable solenoid valve , so the volume is smaller than that of unistable solenoid valve. In addition, when the spool is in any state, no power is required, so the power consumption is very small.