Ball valve, standard GB/T21465-2008 "valve term" is defined as: opening and closing parts (ball) driven by the stem, and the axis of the ball valve for rotary movement. It can be used for the regulation and control of the fluid, which has a strong shear force between the hard sealing V ball valve and the metal valve seat of the hard metal alloy, especially suitable for the medium of V containing fiber and micro solid material. Switch and multi way valve in the pipeline not only can flexibly control the media merging, diverging, and flow, but also can turn off any channel and the other two channels connected. This type of valve in the pipeline in general should be horizontal. Ball valve in accordance with the drive way: pneumatic ball valve, electric ball valve, manual valve.
