What are the salient features of the membrane pneumatic butterfly valve
With the development of automobile industry and industrial technology, the use of high-strength nylon and kapron curtains has been widely used in the membrane pneumatic butterfly valve suspension of passenger cars at home and abroad in recent years. Its characteristics are:
1. At present, the membrane pneumatic butterfly valve is used for sealing, which generally uses self sealing pressure, while the capsule pneumatic butterfly valve is generally threaded, so the membrane pneumatic butterfly valve is simple to seal and easy to disassemble. The membrane pneumatic butterfly valve is simple to manufacture and easy to mass produce.
2. It can be seen that the lower cover of the capsule pneumatic butterfly valve forms a piston. This change greatly improves the elasticity of the pneumatic butterfly valve, and the anti "S" shaped ball valve characteristic curve of the capsule pneumatic butterfly valve is obtained.
3. The change rate of effective area of membrane pneumatic butterfly valve is smaller than that of bag pneumatic butterfly valve. Therefore, when the auxiliary air chamber is small, the membrane pneumatic butterfly valve can obtain a lower natural vibration frequency. It is not easy to design a very low frequency ball valve.