Working Principle of butterfly valve

Butterfly Valve is to open, close or adjust the media flow of a valve with disc-type opening and closing pieces to rotate back and forth about 90. 

The Butterfly Valve is not only simple in structure, small in volume, light in weight, low in material consumption, small in installation size, small in driving Torque, simple in operation and quick in operation, but also has good flow regulation function and closed sealing characteristics, is One of the fastest-growing valve varieties in recent decades. Butterfly Valve is widely used. Its variety and quantity of use is still expanding, and to high temperature, high pressure, large diameter, high sealing, long life, excellent regulating characteristics, and a multi-function valve development. Its reliability and other performance indicators have reached a high level.