Classification and Application of Industrial Pneumatic Butterfly Valves
Specific methods for industrial shock absorption include: spring pneumatic butterfly valve, rubber pneumatic butterfly valve, air spring, rubber shock pad, seat pneumatic butterfly valve, metal rubber pneumatic butterfly valve and various composite shock absorption installations.
Pneumatic butterfly valve is an elastic element connecting equipment and foundation surface to eliminate and reduce the vibration force transmitted from equipment to foundation surface or from foundation surface to equipment. It is the elastic support isolated from the equipment and the foundation surface. When the excited frequency is lower than the natural frequency of the mass (equipment) spring system, the pneumatic butterfly valve cannot play the role of vibration isolation; When the excited frequency is close to the natural frequency,
The vibration will be amplified; As long as the excited frequency is greater than the square root times of the natural frequency, the pneumatic butterfly valve has the effect of vibration reduction. Generally, the excitation frequency is required to be 2~3 times greater than the natural frequency, so as to achieve good vibration isolation effect.

2、 Features of intelligent pneumatic butterfly valve
1. The valve adopts a three eccentric sealing structure, with almost no wear between the valve seat and the butterfly plate, and has the sealing function of tightening as you look.
2. The seal ring is made of stainless steel, which has the double advantages of hard metal seal and elastic seal. It has excellent sealing performance, corrosion resistance, long service life and other characteristics no matter in low temperature or high temperature.
3. The sealing surface of the disc plate is made of hardfacing cobalt based carbide, which is wear resistant and has a long service life.
4. Large specification butterfly plate adopts quilted frame structure, with high strength, large flow area and small flow resistance.
5. The valve has a two-way sealing function, and can be installed in any direction without the restriction of medium flow direction or the influence of space position.
6. The driving device can be installed in multiple stations (rotating 90 ° or 180 °) for the convenience of users.