The commonly used butterfly valves are wafer type butterfly valve and flange type butterfly valve. Wafer type butterfly valve uses stud bolts to connect the valve between two pipe flanges. Flange type butterfly valve has flanges on the valve, and bolts are used to connect the flanges on both ends of the valve to the pipe flanges?

However, if the pipeline pressure is not very high (below 6.4Mpa), it can also be used. However, because of the high temperature, it is recommended to use metal hard seal butterfly valve. The eccentric butterfly valve with valve body WCB can be used. Pay attention to the flow direction during installation. The pipeline should be kept as clean as possible to prevent welding slag from getting stuck on the sealing surface, which is easy to fail to close tightly.