pneumatic damper valve

1. The structure dimension is short, the weight is light, and the installation is convenient 2. Small driving torque, flexible opening and closing, convenient operation 3. There is no visible gap between the sealing pairs and the leakage rate is small 4. The expansion gap between butterfly disc and valve body is large, which can effectively prevent the jamming caused by heat expansion and cold contraction 5.The valve can be equipped with a variety of driving devices, such as manual device, worm gear transmission device, pneumatic device, electric device. Ventilation butterfly valve is widely used in metallurgy, petrochemical, electric power, building materials, mining and other industrial pipelines