In addition, in the design of valve body welded joints, in order to align and locate, there is a circular assembly gap at the root of the weld. Under the action of internal pressure and external load, this gap will produce several times the stress concentration of dry normal working stress, which also makes it difficult for engineers to deal with.

Characteristics and Application of Stainless Steel Pneumatic Butterfly Valve
The pneumatic butterfly valve is the primary pressure bearing part of the hose installed in the pressure pipeline, which acts as a sheath for the bellows. According to the size of the pressure in the pipeline and the application site, one or more layers of stainless steel wires or steel strips can be selected to stop weaving. The pressure range of the pneumatic butterfly valve is usually PN0.6 - 32.0Mpa. Up to 42.0MPa.
Since the material used to manufacture the primary parts of the hose is austenitic stainless steel, it ensures the excellent temperature resistance and corrosion resistance of the hose. At the same time, the operating temperature range of the hose is extremely wide, - 196-600 degrees. The applicable stainless steel trademark is selected for the applied hose according to the corrosivity of the medium through which the pipe passes to ensure the corrosion resistance of the hose.
Professional consumer pneumatic butterfly valve manufacturer Professional consumer pneumatic butterfly valve manufacturer
Pneumatic butterfly valve has excellent flexibility, fatigue resistance, high pressure resistance, upper and lower temperature resistance, corrosion resistance and many other characteristics. Compared with other hoses (rubber and plastic hoses), its life is much longer, so it has higher economic benefits. With the development of modern industry, the demand for high-temperature and high-pressure pneumatic butterfly valves is growing. Scope of application of hose: flexible walk pipe with sufficient demand, piping in places where vibration is avoided, and applicable to steam, gas, air, heavy oil, petroleum, chemicals, etc.