Pneumatic ball valve
The working principle of the pneumatic ball valve Only need to use pneumatic ball valve pneumatic operation for air rotating 90 degrees of operating and small rotational torque can be closed tightly.Full equality of the valve body cavity for medium resistance is very small, straight flow channel.Usually do think most suitable direct ball valve open and close, but recent development has put a ball valve designed to make it with throttling and control flow.Ball valve itself is the main characteristics of compact structure, easy operation and maintenance, and is applicable to water, solvent, acid and gas, such as general work medium, but also is suitable for the working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene.Ball valve body can be a whole, also can be combined.The realistic effect of pneumatic ball valve pneumatic ball valve working principle is to rely on rotary valve core to keep the valve open or closed.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.Merits pneumatic ball valve in the line is mainly used for cutting speed is quick, distribution, and change the flow direction of medium.Pneumatic ball valve is widely used in recent years a new type of valve, it has the following advantages: 1. The fluid resistance is small, its resistance coefficient with section of equal length.2. Simple structure, small volume, light weight.3. 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.4. Easy to operate, open and close quickly, from open to close just rotate 90 ¡ã, is advantageous for the remote control.5. Easy maintenance, pneumatic ball valve has simple structure, sealing ring, which generally remove replacement is more convenient.6. In the fully open or fully closed, the ball and seat sealing surface and the dielectric isolation, medium through, can not cause the valve sealing surface erosion.7. Applicable scope is wide, 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, usually 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.