Introduction to pneumatic butterfly valve
Pneumatic butterfly valve is commonly known as pneumatic tire, corrugated pneumatic tire, etc. It is a precisely designed fiber bellows, which does not provide force or support load itself, but realizes force transmission and elastic effect by filling compressed air into the air compressor.
According to the requirements for stroke, pneumatic butterfly valves are generally designed as 1-3 curves, and can also be designed and manufactured as 4 or more than 5 curves when required. Under certain conditions, two pneumatic butterfly valves can be used together.
The pneumatic butterfly valve is nonlinear, and its stiffness changes with the load, so its natural vibration frequency almost remains unchanged under any load, so that the ball valve device has almost unchanged performance; Its high dynamic absorption and sound insulation performance is good; It bears axial load and radial load at the same time, and different bearing capacities can be obtained by adjusting internal pressure. Therefore, it can meet the needs of various loads.
The rigidity, height, cavity volume and bearing capacity of the pneumatic butterfly valve can be adjusted by increasing or decreasing the inflation pressure within the effective stroke. At the same time, its stiffness, height, cavity volume and bearing capacity will change smoothly and periodically with the increase or decrease of load, thus realizing the flexible transmission of bearing capacity, effective adjustment of stroke, and efficient control of vibration amplitude and vibration load. The air chamber can also be attached to realize automatic adjustment.
As pneumatic butterfly valve has the above points, it is increasingly widely used in train, automobile, paper machine, lifting platform, press, vibrating conveyor, vibrating screen, air hammer, vibration testing machine, casting machinery and other equipment or instruments that need stroke control or valve, vibration isolation.