What is a soft seal butterfly valve?
Soft-sealing butterfly valve, as a component used to cut off the pipeline system and control the flow, has been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower and so on. The butterfly plate of the soft seal butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When the rotation reaches 90°, the valve is fully open. The characteristics of the new high-life stainless steel butterfly valve and the problems in the use of the butterfly valve. Soft-sealed butterfly valves can be divided into flange-type soft-sealed butterfly valves, wafer-type soft-sealed butterfly valves, and welded soft-sealed butterfly valves according to the connection method.
Soft-sealing butterfly valve, as a component used to cut off the pipeline system and control the flow, has been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower and so on. In the known butterfly valve technology, its sealing form mostly adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the limitations of structural features, it is not suitable for industries such as high temperature resistance, high pressure resistance, corrosion resistance, and wear resistance. An existing relatively advanced butterfly valve is a triple-eccentric metal hard-sealed butterfly valve. The valve body and the valve seat are connected components, and the sealing surface of the valve seat is surfacing with heat-resistant and corrosion-resistant alloy materials. The multi-layer soft stacked sealing ring is fixed on the valve plate. Compared with the traditional butterfly valve, this butterfly valve has high temperature resistance, easy operation, and no friction when opening and closing. The advantages of excellent sealing performance and extended service life