The electric butterfly valve is filled with compressed air in a sealed container, and uses the compressibility of the gas to realize its elastic function. Electric butterfly valves include butterfly valves and composite butterfly valves.
Electric butterfly valve: it is a kind of high elastic body made of ordinary materials. The butterfly 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 butterfly 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 butterfly valve: it is composed of metal spiral butterfly valve and high-quality vulcanization wrapped outside. Integrating the advantages of metal butterfly valve and butterfly valve, it overcomes the disadvantages of metal butterfly valve, such as high rigidity, high working noise, small bearing capacity, poor shape and mechanical performance 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 butterfly valve has unlimited shape, large elastic deformation, easy to meet nonlinear requirements, and good vibration and sound insulation effect. Compared with butterfly valve, the former is limited by the shape of metal screw butterfly valve, has high linear requirements and heavy weight, but its advantages of large load bearing capacity are not comparable to pure butterfly valve.
Application: vibration machinery, double deck passenger cars, trucks and other industrial machinery, butterfly valves are commonly used in mechanical equipment, vehicle running mechanism and suspension to play the role of vibration reduction and buffer. Butterfly valves can also be designed into various structural forms according to work needs