Working principle of diaphragm solenoid valve

Working principle of diaphragm solenoid valve：

There are closed chambers in diaphragm solenoid valves. There are through holes in different positions. Each hole leads to different oil pipes. There are valves in the middle of the chamber and two electromagnets on both sides. The magnet coil electrifying valve body on either side will be attracted to which side. By controlling the movement of the valve body, different oil drain holes will be blocked or leaked out, while the oil inlet hole is. Normally open, the hydraulic oil will enter into different oil discharge pipes, and then through the pressure of oil to push the oil-rigid piston, piston rod driven piston rod, piston rod driven mechanical device. In this way, the mechanical motion is controlled by controlling the current of the electromagnet.