"The pneumatic solenoid valve has a closed cavity, and there are through holes in different positions. Each hole of the pneumatic solenoid valve leads to a different air pipe. In the middle of the cavity is the valve. On both sides are two electromagnets. Which side is the magnet coil. Which side of the energized valve body will be attracted to; the pneumatic solenoid valve blocks or leaks different exhaust holes by controlling the movement of the valve body, and the air intake holes are always open, and high pressure gas will enter different exhaust Tube, and then push the piston of the cylinder through the air pressure of the pneumatic solenoid valve, so that the mechanical movement of the entire solenoid valve is controlled by controlling the current of the solenoid of the pneumatic solenoid valve. Operating principle of the pneumatic solenoid valve (Solenoid valve on or off) actually refers to the position of the spool of the pneumatic solenoid valve. The spool is in the A position when the coil is not energized and in the B position when the coil is energized. When in different positions, the ports on the valve body can be turned on or off. For example, a two-position solenoid valve means that the spool of the solenoid valve has two different working positions (on or off). , For pneumatic solenoid valve is a solenoid valve Electrical state and a de-energized state; it valve is controlled by the valve is open and ... "