radial vane damper

one way check butterfly damper valve is used for the ventilation duct of flue gas and other gases. Its main function is to prevent the backflow of the medium. The function of the check valve is to allow the medium to flow in only one direction and prevent the flow in the opposite direction. Usually, this valve works automatically. Under the action of fluid pressure flowing in one direction, the valve disc opens; When the fluid flows in the opposite direction, the fluid pressure and the self weight of the valve disc act on the valve seat, so as to cut off the flow.

1. It is convenient and quick to open and close, with low fluid resistance and easy operation. 2. Simple structure, small size, short structure length, small volume, light weight, suitable for large caliber valve. 3. It can transport mud and store the least liquid at the pipe mouth. 4. Under low pressure, good sealing can be achieved. 5. Good regulation performance. 6. When the valve seat is fully open, the effective flow area of the valve seat channel is large and the fluid resistance is small. 7. The opening and closing torque is small, because the butterfly plates on both sides of the rotating shaft are basically equal to each other under the action of medium, and the direction of torque is opposite, so it is easier to open and close. 8. The sealing surface materials are generally rubber and plastic, so the low-pressure sealing performance is good. 9. Easy to install. 10. The operation is flexible and labor-saving. Manual, electric, pneumatic and hydraulic modes can be selected.