The ball valve is mainly used to cut off or connected line of medium, can also be used for the regulation and control of the fluid, it is compared with other valves, has the following advantages: 1, the fluid resistance is small, ball valves a minimum fluid resistance, even if it is reduced in diameter ball valve, the fluid resistance is also quite small. 2, thrust bearings reduce stem friction torque, can stem the long-term stable and flexible operation. 3 seat sealing performance, the use of the seals made of elastic material such as PTFE V-type valve structure easy to seal, and the ball valve sealing capacity with medium pressure increased. The stem seal reliable, stem only for imitation rotation operation without doing the lifting movement, the valve stem packing seal not easy to destroy, and the sealing capacity increases with the increased pressure of the medium. 5, has a good self-lubricating PTFE and other materials, small friction losses with the ball, the ball valve long service life; Bottoms stem and stem head convex order to prevent stem ejection such as fires caused by stem seal damage, convex order and the body can also form a metal contact seal valve, ensure that the valve stem sealing; 7, anti-static function: between the ball, stem, valve spring can Export static electricity generated by the switching process; nominal pressure 16-32MPa; temperature range: -20 ~ 232 ℃ ~ 350 ℃ Suitable medium: water, oil, gas and some corrosive liquids (WOG) welding type: welded (BW ), to undertake welding (SW) Features: Specifications Nominal pressure 16-32MPa Suitable temperature: -20 to 232 ° C to 350 ° C Welding Type: Butt weld (BW), socket welding (SW);