Select between pneumatic valves, electric valves and solenoid valves

Generally, if the gas source (gas source pressure is greater than 3kg) at the scene, it is recommended to choose the pneumatic valve as much as possible. If the valve continues to open, the motor will be burned. If the motor is overheat, it will stop automatically. The disadvantage of the electric valve is that the control time is slow, so the switch frequency is high. It is not recommended to choose the electric valve. The working method of the solenoid valve is to connect two wires. When the power is turned on, it is turned off when the power is turned off. The principle of the electric valve is the forward reversing of the motor. It usually needs to be opened once and closed once before closing. Relatively speaking, the control of the electric valve will be more complicated, and the medium of the solenoid valve must be clean.