The characteristics of the wafer butterfly valve

Butterfly valve according to the mode of connection can be divided into the wafer butterfly valve, flanged butterfly valves, ear type butterfly valve, welding type butterfly valve. Wafer butterfly butterfly plate is installed on the pipeline diameter direction, within the cylindrical body channel, disc disc around the axis of rotation, rotation Angle for 0 & deg; - 90° Between, rotate to 90 & deg; When valve is fully open butterfly valve on the card. Its simple structure, small volume, light weight, only by a few parts. And only need to rotate for 90 & deg; Can quick opening and closing, the operation is simple, at the same time, the valve has good flow control characteristics. Butterfly valve in the fully open position, the butterfly plate thickness is medium flows through the body when the only resistance, thus produced by the valve pressure drop is small, it has good flow control characteristics. Butterfly valves have a seal and metal seal two kinds of seal type. Elastic sealing valve, sealing ring can be embedded in the body or attached to the butterfly plate peripheral.