Air pressure control directional valve

Air pressure control reversing valve

The air pressure control reversing valve uses gas pressure to move the main valve core to change the flow direction of the gas. According to different control methods, it is divided into three types: pressure control, pressure relief control and differential pressure control. Pressure control means that the added control signal pressure gradually increases. When the air pressure increases to the operating pressure of the valve core, the main valve changes direction;pressure relief control means that the added pneumatic signal pressure is reduced. When it reduces to a certain pressure value, the main valve changes direction;difference Pressure control is to make the main valve core change direction under the action of the pressure difference between the two ends. Pneumatic control valves can be divided into two main forms: cut-off type and slide valve type according to different main valve structures. The structure and working principle of the slide valve type pneumatic reversing valve are basically the same as those of the hydraulic reversing valve. This article mainly introduces the stop-type directional valve.