Nickel ball valve sealing performance is good. Ball valve seat sealing generally use the elastic materials such as teflon, easy to guarantee the seal, and valve sealing force with medium pressure increases. Stem seal and reliable. When the ball valve open/close the valve stem make rotation movement only, so the valve stem packing seal is not easy to be destroyed, and the valve stem pour sealing sealing force with medium pressure increases. Do 90 ° rotation of ball valve opening and closing, so easy to achieve automatic control and remote control, the ball valve can be configured pneumatic equipment, electric equipment, hydraulic equipment, gas liquid linkage or electro-hydraulic linkage. Ball valve channel level off is smooth, not easy to deposit medium, pass the ball to pipeline.