The opening and closing part of the ball valve is a sphere with a circular channel, which rotates around an axis perpendicular to the channel. The ball rotates with the valve stem to achieve the purpose of opening and closing the channel. The ball valve only needs to be rotated 90 degrees and a small rotational torque to close tightly. According to the needs of working conditions, different driving devices can be assembled to form ball valves with various control methods, such as electric ball valves, pneumatic ball valves, hydraulic ball valves, etc. Due to the uniqueness of the ball valve, the multi-way ball valve can not only flexibly control the confluence, divergence, and flow direction switching of media on the pipeline, but can also close any channel and connect the other two channels.
Ball valve is a kind of valve with many types and a wide range of applications. Different types of ball valves have different functions and can be widely used in petroleum, offshore oil, natural gas, electric power, construction, chemical industry and other industries. They also play an important role in water treatment, shipbuilding and other fields.