The name of the butterfly valve comes from the butterfly plate with a wing-like structure, which is installed in the diameter direction of the pipe. In the optical fiber channel of the butterfly valve body, the disc-shaped butterfly plate only needs to rotate 90° around the axis to open and close the valve. Butterfly valve…
I. Introduction In order to meet the industrial requirements of high temperature, low temperature, strong corrosion, strong erosion and long life, metal-sealed butterfly valves have become one of the fastest growing valve varieties in recent years. In some special occasions, higher requirements are placed on the sealing of metal hard-seal butterfly valves, which must bear…