About Product:Handle butterfly valve simple structure, small volume, light weight, only by a few parts. Moreover, the valve can be opened and closed quickly by only rotating 90°, And the operation is simple. At the same time, the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, Thickness of the butterfly plate is the only resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, So it has good flow control characteristics.