The role and use of pneumatic valve advantages
The role of pneumatic valve
Pneumatic valve works by rotating the spool to make the valve flow or occlusion. Pneumatic Valve switch light, small size, can be made into a large-caliber, reliable sealing, simple structure, easy maintenance, regular spherical surface and seal in the closed state, the media can not easily be eroded, in various sectors has been widely used.
Pneumatic ball valves and plug valves belong to the same type of valve, only it's turned off parts of a sphere, the sphere rotates around the body centerline to achieve open and close a valve.
The use of pneumatic valve advantage
Pneumatic valve in the pipeline is mainly used for cutting speed, distribution and change the direction of media flow. Pneumatic valve is widely used in recent years, a new type of valve, it has the following advantages:
1. Fluid resistance, the resistance coefficient with the length of the pipe sections are equal.
2. Simple structure, small size and light weight.
3. Compact and reliable valve sealing surface material widely used plastic, sealing in the vacuum system has also been widely used.
4. Easy to operate, opening and closing rapidly, from fully open to fully closed as long rotation 90 °, to facilitate remote control.
5. Easy maintenance, pneumatic valve structure is simple, seals are generally active, are relatively easy to replace demolished.
6. In the fully open or fully closed, the ball and seat sealing surface and the dielectric isolation, through the media, will not cause the valve sealing surface erosion.
7. Wide range of applications, from small diameter to a few millimeters to a few meters from the high vacuum to high pressure can be applied.
8. Pneumatic valve as the power source used is gas, typically 0.2-0.8MPa pressure, is relatively safe. If the pneumatic valve leak, then the relative hydraulic, electric, the gas may be discharged directly, no environmental pollution, but also has high safety.
9. Manually rotate relative to the valve and turbine, the pneumatic valve can be large diameter configuration (manual and rotating turbine valve DN300 diameter generally in the following, pneumatic valve can now reach DN1200 caliber.)
If you understand the manual ball valve, you will find the pneumatic valve and manual valve Hu still have a few advantages to use are similar. Currently, according to statistics, pneumatic valve has been widely used in petroleum, chemical, power generation, paper, nuclear, aviation, rockets and other departments, as well as people's daily life.