The valve disc of the butterfly check valve is disc-shaped and rotates around the axis of the valve seat channel. Due to the flow line shape of the internal channel, the flow resistance is smaller than that of the rising butterfly check valve, making it suitable for large-diameter applications with low flow velocity and little flow variation. However, it is not suitable for pulsating flow and its sealing performance is not as good as that of the lifting type. Butterfly check valves are divided into three types: single disc, double disc, and half disc. These three forms are mainly classified according to the valve diameter, in order to prevent hydraulic shock when the medium stops flowing or flows back< br/>

Used for pure pipelines and industrial, environmental protection, water treatment, high-rise building water supply and drainage pipelines, to prevent the reverse flow of media.

Product Structure Features:

1. Small size, light weight, compact structure, and easy maintenance.

2. The valve plate adopts a dual type and can self quickly close under the elastic force of the spring.

3. Due to the quick closing effect, it can prevent the medium from flowing back.

4. The valve body structure has a small length and good rigidity.

5. Safe and convenient, it can be installed in both horizontal and vertical directions.