What Is The Definition Of A Fixed Ball Valve

Fixed ball valves are equipped with a floating seat, and after being pressured by the medium, the seat moves, so that the sealing ring is pressed against the ball to ensure a seal. Bearings are usually installed on the upper and lower shafts with the ball, and the operating torque is small, which is suitable for high-pressure and large-diameter valves. In order to reduce the operating torque of the ball valve and increase the reliability of the seal, in recent years, the oil-sealed ball valve has appeared, which not only presses special lubricating oil between the sealing surfaces to form a layer of oil film, which enhances the sealing and reduces the operating torque, which is more suitable for high-pressure large-diameter ball valves.
Fixed ball valve, flanged gate valve, flanged butterfly valve and oxygen pressure reducing valve are the same type of valves, the difference is that its closing part is a sphere, and the ball rotates around the center line of the valve body to achieve opening and closing. Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. Ball valve is a new type of valve that has been widely adopted in recent years