Ball valves are suitable for low temperature, high pressure and high viscosity media. Most ball valves can be used in media with suspended solid particles, and can also be used for powdered and granular media according to the sealing material requirements. Full-channel ball valves are not suitable for flow regulation, but are suitable for occasions that require rapid opening and closing, which is convenient for emergency cut-off in accidents.
Ball valves are usually recommended for pipelines with strict sealing performance, wear, shrinkage channels, rapid opening and closing, high pressure cut-off (large pressure difference), low noise, gasification phenomenon, small operating torque, and small fluid resistance. Ball valves are suitable for light structures, low pressure cut-off, and corrosive media.
Ball valves are also the most ideal valves for low temperature and deep cold media. For pipeline systems and devices for low temperature media, low temperature ball valves with valve covers should be selected. When selecting a floating ball valve, the valve seat material should bear the load of the ball and the working medium. Large-diameter ball valves require greater force during operation. Ball valves with DN≥200mm should use worm gear transmission. Fixed ball valves are suitable for occasions with larger diameters and higher pressures.
In addition, ball valves used in pipelines for highly toxic process materials and flammable media should have fireproof and anti-static structures.