It is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid regulation and control.
Structural features:
1, Small fluid resistance, ball valve is a small fluid resistance of all valves, even reduced diameter ball valve, its fluid resistance is quite small.
2, Thrust bearing reduce stem friction torque, can make the stem long-term operation smooth and flexible.
3, The valve seat sealing performance is good, the sealing ring made of ptfe and other elastic materials, the structure is easy to seal, and the valve sealing capacity of the ball valve increases with the increase of medium pressure.
4, The valve stem seal is reliable, because the valve stem only as if rotating without lifting movement, the packing seal of the valve stem is not easy to damage, and the sealing capacity increases with the pressure of the medium.
5, Because ptfe and other materials have good self-lubrication, friction loss with ball valve is small, so the ball valve service life is long.
6, Lower mounted stem and stem head convex order to prevent stem ejection, such as fire caused by stem seal damage, convex order and valve body can also form metal contact, to ensure stem seal.
7, Anti-static function: set spring between the ball, stem, valve body, can switch the process of electrostatic export.