High Quality DIN ANSI JIS Lever Handle Type Butterfly Valve

It is manually to open and close the butterfly valve by triggering the handle. There is a tooth disk directly between the handle and the valve body. and the range of activity of the handle on the tooth disk is between 0~90°. The switch of the handle parallel with the butterfly plate, which connect by the middle of the stem. Trigger the handle of the butterfly valve, the handle drives the valve stem movement, the valve stem will drive the butterfly plate rotation. That achieve the opening and closing of the butterfly valve.

The difference between handle type butterfly valve and turbine type butterfly valve mainly lies in the driving method. and some differences in the use of the different driving methods. Handle type butterfly valve is to use the handle lever to drive the butterfly plate directly to realize the opening and closing. Which switch quickly, but more laborious. Turbine butterfly valve through the turbine drive butterfly plate, switching although slower, but save energy. Handle type butterfly valve is generally used in small diameter pipeline. Because the torque of small diameter is smaller, opening and closing is relatively labor-saving, and the cost is also low. When the torque of valve stem is more than 300N.M or the diameter of butterfly valve is more than 200MM, it is more suitable to use worm gear butterfly valve.