Pneumatic solenoid water valve has closed cavity, in the different position of the open hole, pneumatic solenoid valve of each hole leads to different tubing, cavity valve is among, both sides are two electromagnets, which face the magnet coil electricity body which will be drawn to the side;
Pneumatic solenoid water valve to control the movement of the valve body to blocked or leakage of different discharge of oil hole, and the oil hole is always open, hydraulic fluid will enter the different oil drain, and then through the pneumatic solenoid water valve of the oil pressure to push oil just the pistons, the pneumatic solenoid water valve control through the magnet current electromagnetic valve to control the whole mechanical movement.