Solenoid Directional Control Valve

اOne of the most basic components of pneumatic systems is directional or directional solenoid valves, which change fluid depending on the passage path. It is formed by means of a removable rod called a spool which is similar to a spool or tube inside it and has the ability to move back and forth by stimulating the coil or electricity or wind or manually by closing and opening the ports. Switches the fluid movement and closes or opens it.

For example, in the most common model, known as the 2/3 valve, there are two positions, left and right, which can change the air passage to both ends of the pneumatic cylinder or air actuator and cause the piston to move. Below you can see the states that 2/3 valves can have as a sign.