Working principle of butterfly valve

Butterfly valve is based on the rotating stem at the same time to drive disc rotation to do a valve. In the cylinder channel of butterfly valve body, the disc disc rotates around the axis, mainly rotating the disc 90° to do flow control, when the disc reaches 90° when the valve is in full open state. At the same time can change the Angle of the plate to adjust the medium flow, generally installed in the direction of the diameter of the pipeline. Butterfly valve and valve stem itself is not locked capacity, in order to effectively regulate the flow of worm gear reducer. The butterfly valve equipped with worm gear reducer not only makes the butterfly valve has self-locking ability, but also can change the operating performance of the butterfly valve and more accurately adjust the medium flow rate.