What is the difference between pneumatic butterfly valve and composite pneumatic butterfly valve?
Pneumatic butterfly valve is a common valve element nowadays. Do you know the difference between pneumatic butterfly valve and composite pneumatic butterfly valve? If you don't know, let's take a look at the introduction of Dongfeng's article.
Pneumatic butterfly valve: It is a kind of high elastic body with ordinary manufacturing materials. The ball valve has a small elastic modulus and a large elastic deformation after being loaded to absorb shock and oscillation. 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. It can be made of oil resistant if there are special requirements. This product has good shock absorption effect, small resonance field, long life span, low cost, cold resistance, good air tightness, waterproof, electrical insulation, and is the best 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 shortcomings of metal ball valve, such as high rigidity, high working noise, small bearing capacity, poor shape and mechanical stability. It has advantages of higher load and large deformation, better noise reduction effect of valve, stable operation, short resonance range, etc. In general, compared with ball valves, composite ball valves are limited by the shape of metal screw ball valves, with high linearity requirements and heavy weight, but their large load bearing capacity is not comparable to pure ball valves.