The pneumatic butterfly valve is filled with compressed air in a sealed container, and its elasticity is realized by the compressibility of the gas. Pneumatic butterfly valve includes ball valve and composite ball valve.
Pneumatic butterfly valve: It is a kind of high elastic body, made of ordinary materials. The ball valve has small elastic modulus and large elastic deformation after being loaded to absorb shock and vibration. It can bear multi-directional loads at the same time, but its high temperature resistance and oil resistance are worse than those of steel ball valves. If necessary, it can be made of oil resistant. This product has good shock absorption effect, small resonance field, long service life, low cost, good cold resistance, excellent air tightness, waterproof, electrical insulation, and is a good choice for shock absorption.
Composite ball valve: it is composed of metal screw ball valve and its outer wrapped high-quality vulcanization. Integrating the advantages of metal ball valve and ball valve, it overcomes the disadvantages of metal ball valve, such as high rigidity, high working noise, small bearing capacity, poor shape and mechanical stability. The utility model has the advantages of higher load and large deformation, better noise reduction effect of the valve, stable operation, short resonance interval, etc.
Main points: the ball valve has unlimited shape, large elastic deformation, easy to meet the nonlinear requirements, and good vibration and sound insulation effect. Compared with the ball valve, the composite ball valve is limited by the shape of the metal screw ball valve, has high linear requirements and heavy weight, but its advantages of large load bearing capacity are not comparable to the pure ball valve.
Application: vibration machinery, double deck passenger cars, trucks and other industrial machinery, ball valves are commonly used in mechanical equipment, vehicle running mechanism and suspension to play the role of vibration reduction and buffer. The ball valve can also be designed into various structural forms according to the work needs