The importance of the pneumatic valve selection and performance characteristics have what characteristics?

Pneumatic valve has important applications in many aspects, such as 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. It has many advantages, it can make our cost a lot, so many people are like pneumatic valve is the valve type. What about the working principle of the pneumatic valve in the selection of role, we take a look at. Need to be aware of ways: pneumatic valve selection, the working principle of pneumatic valve is to rely on rotary valve core to keep the valve open or occlusion. 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 in the line is mainly used to do cutting, distribution, and change the flow direction of medium. , pneumatic valve is a relatively new type of valve category, it has its own unique structure some advantages, such as switch frictionless, seal is not easy to wear and open-close torque is small. Which can reduce the distribution of the specifications of the actuator. With multi-turn electric actuators, which can realize to adjust the medium and carefully cut off. Widely used in petroleum, chemical industry, urban water supply and drainage and other demanding cutting conditions. Pneumatic valve's main function is to cut off the medium, the distribution change medium flow direction and flow velocity. Along with the development, it has become a very widely used a valve. Here's what it has excellent performance. Easy to operate, open and close quickly, from open to close as long as the rotating °, is advantageous for the remote control. 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. Fluid resistance is small, its resistance coefficient with section of equal length. Applicability is wide and size from small to several millimeters, big to a few meters, from high vacuum to high pressure can be applied. 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. The pneumatic valve has simple structure, convenient maintenance, sealing ring, which generally remove replacement is more convenient. Because of pneumatic valve is gas that is used by the power supply is commonly. - 。 MPa pressure, is relatively safe. Pneumatic valve if air leakage, the relative hydraulic, electric, gas can directly discharge, no pollution to the environment, and has higher security. 。 Relative to manual and turbine rotating valve, pneumatic valve can be large caliber configuration.