Features and performance of floating ball valve and fixed ball valve: the floating ball is small in size, light in weight, simple in structure, the ball has the function of free floating, and can ensure the sealing well. The ball valve uses a ball with a round/through hole as the opening and closing part , Driven by the valve stem, the ball rotates 1-90 degrees around the center of the valve stem to complete the opening and closing function; it has the characteristics of tight structure and rapid switching, and the valve can be closed by turning 90 degrees, cutting off the pipeline medium; the diameter of the ball channel is the same as The diameter of the pipeline is the same, the flow resistance is small, and the flow capacity is large. The fixed ball valve is suitable for various pipelines of medium and high pressure. It is used to cut off or connect the medium in the pipeline. With different materials, it can be applied to water, steam, oil, liquefied gas, natural gas, coal gas, acid, acid, etc. Acid, oxidizing media, urea and other media are widely used in petrochemical, electric power, water conservancy and other industries. Common driving methods for fixed ball valves are worm gear drive, manual, electric and pneumatic. Most fixed ball valves are flanged, but there are also welded fixed ball valves. In short, the difference between fixed ball valves and floating ball valves is that the valve core ball of the floating ball valve is located between the two valve seat seals by means of the valve stem. It can rotate freely between the fixed ball valve powder and the valve core ball is connected with the valve stem, and rotates around the center of the valve stem. It is a ball valve with a floating ball and an elastic movable sleeve valve seat.
