The knowledge of butterfly valve

The name butterfly valve comes from the wing structure of the butterfly plate installed in the diameter of the pipe.In the cylindrical passage of the body of the butterfly valve,the disc ratates only 90°around the axis to open and close the valve.

Butterfly valve simple structure,small size,light weight.It consists of only a few parts.And only need to rotate 90°to quickly open and close,simple operation.The valve has good fluid control characteristics.

When the butterfly valve is in the fully open position,the disc thickness is the only resistance when the medium flows through the valve body.Therefore,the pressure drop generated by the valve is very small.During the valve closing movement,the disc rotates towards the closed position and the velocity of medium flow decreases gradually.The valve has good flow control characteristics.