The operating principle and the use of pneumatic ball valve
And working principle of the pneumatic ball valve USES pneumatic ball valve is to rely on the working principle of rotary valve core to keep the valve open or occlusion. Pneumatic ball valve switch lightweight, small size, can make a large caliber, reliable sealing, simple structure, convenient maintenance, sealing surface and the spherical often in the closed state, not easily be medium erosion, has been widely used in various industries. Pneumatic ball valve and plug valve is belong to one type of valve, only its closure is a ball, the ball around the center line of the body as a rotation to achieve a kind of open and close the valve. Pneumatic ball valve in the line is mainly used for cutting speed is quick, distribution, and change the flow direction of medium. Fluid resistance is small, its resistance coefficient with section of equal length. Simple structure, small volume, light weight. Compact and reliable, the widespread use of plastic ball valve sealing surface of materials, good sealing, also has been widely used in the vacuum system. Easy to operate, open and close quickly, from open to close just rotate it 90 & deg; To facilitate remote control. Convenient maintenance, pneumatic ball valve has simple structure, sealing ring, which generally remove replacement is more convenient. In full open or full close, sphere and valve 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. 8. Because of the power supply adopts pneumatic ball valve is a gas, general is 0. 2 - 0. 8 mpa pressure, is relatively safe. If air leakage, pneumatic ball valve relative hydraulic, electric, gas can directly discharge, no pollution to the environment, and has higher security. 9. Relative to manual and turbine rotating ball valves, pneumatic ball valve can be large caliber configuration, ( Manual and turbine rotating ball valve is generally under 12 caliber, pneumatic ball valve can now be reached 48 ') diameter. ) Pneumatic ball valve has been widely used in petroleum, chemical, power, papermaking, atomic energy, aviation, rockets and other departments, as well as People's Daily life.