The movable cutter head designed for mass machining of pneumatic ball valve shell not only ensures machining accuracy (concentricity), but also facilitates assembly and disassembly (assembly and disassembly time only takes more than 20 seconds). By compensating the error of the arc radius of the tool tip, the accuracy of adding soil on the radius of the arc surface is effectively guaranteed. This machining method is suitable for machining the inner surface of most pneumatic ball valve shells with disassembly holes.

Principle: When fully opened, the unimpeded valves on both sides form a straight pipe channel and are sealed in both directions. The pneumatic O-ring ball valve has better self-cleaning performance, and is suitable for two position cutting occasions that are especially dirty and contain fiber media. The ball core always rubs with the valve during the opening and closing process of the valve. At the same time, the sealing between the valve core and the valve seat is achieved by the pre tight sealing force of the valve seat against the ball core. However, due to the excellent mechanical and physical properties of the soft seal valve seat, its sealing performance is particularly good.