The main features of pneumatic three-piece all-enveloped ball valve are reliable sealing, compact structure, easy to operate and maintain, all-enveloped valve seat, no retention of medium.The fluid resistance of the pneumatic three-piece ball valve is the least, and its resistance coefficient is equal to the length of the tube.When the ball valve is fully open and fully closed, the sealing surface of the ball and seat is isolated from the medium, so the medium passing through the valve at high speed will not cause erosion to the sealing surface of the valve.
