Pneumatic valve pneumatic valve explanation, knowledge about how much you know?

Pneumatic valve is a kind of commonly used control element, evolved by the plug valves with the same rotation movement, the different is the cock body is a body, has a circular hole or channel through its axis. This paper mainly introduces the purpose of the pneumatic valve and advantages, hope can help you good application products. The purpose of the pneumatic valve pneumatic valve is to rely on the working principle of rotary valve core to keep the valve open or closed. Pneumatic valve switch lightweight, small size, can make it big caliber, reliable sealing,
simple structure, convenient maintenance, and facial sealing surface often in the closed state, not easily be medium erosion, has been widely used in various industries. Pneumatic valve and plug valve is belong to one type of valve, only its closure is the individual, body around the center line of the valve body rotation to achieve a kind of open and close the valve. Pneumatic valve in the pipeline is mainly used for cutting speed is quick, distribution, and change the flow direction of medium. The advantages of pneumatic valve. Fluid resistance is small, its resistance coefficient with section of equal length. 。 Simple structure, small volume, light weight. 。 Close and reliable, and the valve sealing surface material widely used plastic, sealing good, also has been widely used in the vacuum system. 。 Easy to operate, open and close quickly, from open to close as long as the rotating °, is advantageous for the remote control. 。 The pneumatic valve has simple structure, convenient maintenance, sealing ring, which generally remove replacement is more convenient. 。 In full open or full close, the body and seat sealing surface and the dielectric isolation, medium through, does not cause the valve sealing surface erosion. 。 Applicability is wide and size from small to several millimeters, big to a few meters, from high vacuum to high pressure can be applied. 。
because pneumatic valve is gas that is used by the power source is commonly. - 。 MPa pressure is relatively an all. Pneumatic valve if air leakage, the relative hydraulic, electric, gas can directly discharge, no pollution to the environment, has high an whole sex at the same time. 。 Compared with the manual and turbine valve, pneumatic valve can be large caliber configuration, ( Manual and turbine rotational valve is generally below DN caliber, pneumatic valve DN caliber can be achieved at present. ) Pneumatic valve has been widely used in petroleum, chemical, power, papermaking, atomic energy, aviation, rockets and other departments, as well as People's Daily life. Pneumatic valve valve pneumatic actuators actuators and regulating mechanism is a unified whole, the executing agency with diaphragm and piston type two kinds. Piston stroke length, suitable for a greater thrust required; The diaphragm stroke is small, can only be direct drive valve stem. Due to the actuator has a simple structure, export thrust large, smooth and reliable action, and an explosion-proof, etc, all in power plants, chemical industry, oil refining and other requirements for an all higher has extensive application in the process of production.