Working principle of pneumatic butterfly valve:?
The pneumatic butterfly valve uses a round butterfly plate rotating with the valve head for opening and closing, so as to realize the starting action. The pneumatic valve is mainly used as a block valve, and can also be designed to have the function of regulating or section valve and regulating. At present, butterfly valves are increasingly used in low-pressure large and medium diameter pipelines.???

How to judge the manufacturer of stainless steel pneumatic butterfly valve?
The stainless steel pneumatic butterfly valve is a flexible element with one or more layers of steel wire or steel belt net sleeves outside the stainless steel bellows, and two ends are equipped with joint media.
Pipelines for transporting low temperature or ultra-low temperature media, water, steam, oil and other media under high temperature environment, and requiring shock absorption or noise elimination, specification is ￠ 4 - ￠ 600 pressure 0.6MPa-25.0MPa Practice specification: GB/T14525-93.
As a flexible pressure resistant pipe fitting, pneumatic butterfly valve is used in the liquid transportation system to compensate for the mutual displacement of the connecting ends of pipes or machines and equipment, absorb the oscillation energy, and can play the role of vibration reduction and noise reduction. It has many advantages such as good flexibility, light weight, corrosion resistance, fatigue resistance, and temperature resistance.
Transport corrosive chemical media or organic solvents, high-temperature gas, hot oil and other high-temperature media.