The structure of the ventilation butterfly valve is welded with the center line butterfly plate and the short structural steel plate, so there are no connecting rods, bolts and other components inside the valve, which will not cause some component problems during use, so the failure rate is very low. It is very convenient to use. It is a reliable valve device. And because its sealing system adopts metal sealing, although the sealing effect is not as good as that of elastic sealing, its service life is longer than that of elastic sealing, and it has the characteristics of high temperature resistance. Therefore, it is widely used in building materials, electric power, metallurgy and other industries. In the medium transmission pipeline with temperature not higher than 300 degrees, the connection and closing adjustment can be realized. The butterfly valve can also be customized according to the needs of customers, which is very humanized.

Because the clearance between the butterfly plate and the valve body of the ventilation butterfly valve is large and there is enough expansion space, it can effectively prevent the thermal expansion and cold contraction caused by temperature changes during the use process, so that the butterfly plate will not be stuck. Common butterfly valves can be driven in a variety of ways, including manual, electric and pneumatic. Because of the material, the butterfly valve also has the characteristics of high temperature resistance, and there is no friction when opening and closing, so the service life is very long. The ventilation butterfly valve is a valve welded with steel plates. It has the characteristics of small size, light weight, easy installation, etc. And because of its small flow resistance and large flow volume, it will not be affected by high temperature expansion. Its driving torque is small and the switch is very flexible, so it is very convenient to operate. It is deeply loved by people in the industry.