What Are the Different Methods of Air Pressure Control?

There are many types of directional control valves, with different structures and various control methods. The air pressure control reversing valve is to switch the main valve by the external air pressure signal for power, and the control circuit is reversed or opened and closed. The applied air pressure is called the control pressure. According to different ways of applying pressure, it can be divided into pressure control commutation, pressure relief control commutation, differential pressure control commutation, time delay control commutation and pulse control commutation. ^[1]