Pneumatic switch valves are mainly used for switching in powder material flow control systems. It is usually used in series with the flow control valve. Pneumatic switching valves use cylinders as power to realize switching functions.

In terms of structure, there is no difference between the valve body of the pneumatic switch valve and the electric switch valve. The main difference is that the driving force for pushing the slider in the valve body to change the valve position is different. Pneumatic switch valve is sent from the control air in the air circuit (pipe) to the operating cylinder in the valve to push the piston to move and drive the slider to change the valve body valve position; the electric switch valve generates electromagnetic suction through the spiral coil to drive the slider to change the valve body valve position .

Since the valve position of the pneumatic switching valve is changed by controlling the air in the cylinder to form a certain pressure, the piston and the slider can be pushed to change the valve position of the valve body. Faster, so the electric switch valve moves faster from the working speed.

In addition, the control signal connected to the pneumatic switch valve is a pneumatic signal, which must be connected with a pipe, and the volume is relatively large; while the control signal of the electric switch valve is generally a current signal, which can be connected with a wire, and there is no operating plunger, so the electric switch valve The volume is smaller than that of the pneumatic switch valve.