Internal structure of pneumatic butterfly valve:
1. Elastic seat sealing structure The elastic seat sealing structure uses an eccentric butterfly plate installed on the valve rod, which has two sides: spherical and conical, and is matched with the elastic seal ring. The seal ring is made of L-shaped and U-shaped, which is consistent with the sealing surface of the butterfly plate. Under the action of medium pressure, the sealing pair produces tiny elastic deformation, thus realizing sealing. The structural form shall be selected according to the nominal diameter and nominal pressure of the valve, and the wall thickness of the seal ring shall be designed according to the pressure bearing force.

What can be self created in the design of plastic coated pneumatic butterfly valve
When consuming some industrial equipment products, such as plastic coated pneumatic butterfly valve is an obvious example. What relevant designers should do is that they should never just be satisfied with the current situation, but should further explore more high-quality products and apply them in more aspects. As a modern new pipe fitting product, the application of this stainless steel hose product is well-known. What can it do about other pipe fitting products? Now let's follow Xiao Bian to understand!
The first is product innovation research and development. We know that before the plastic coated pneumatic butterfly valve was introduced to the market, there were many other types and performance of pipe fittings in the real industrial pipeline laying industry. But when this new pipe fitting product came out, it quickly occupied the main position. In this way, the designers try to have more high-quality performance in the process of R&D from time to time, so that they can adapt to a large number of applications in more aspects after facing the market. In fact, it did.
In addition, one thing we can learn from plastic coated pneumatic butterfly valve products is quality assurance. The reason why many pipe fittings fail to match this new type of pipe fittings is that, in addition to other elements, there is also a very important element in terms of quality. As the material of stainless steel is far better than those of plastic or rubber pipes, because of its stable nature, it will not be affected by the external environment.