Cast steel flange ball valve, opening and closing parts (ball) driven by the valve stem, and around the ball valve axis for rotary motion of the valve.
1,Small fluid resistance, ball valve is the smallest fluid resistance of all valves, even if it is a reduced ball valve, its fluid resistance is also quite small.
2,Thrust bearing reduces the friction torque of valve stem, which can make the valve stem operate smoothly and flexibly for a long time.
3, good sealing performance of the valve seat, the use of PTFE and other elastic materials made of sealing ring, the structure is easy to seal, and the valve sealing capacity of the ball valve with the media pressure increases.
4, the valve stem sealing is reliable, because the valve stem only for seemingly rotating operation without lifting movement, the valve stem packing seal is not easy to destroy, and sealing capacity with the media pressure increases.
5, due to PTFE and other materials have good self-lubrication, and the ball valve friction loss is small, so the ball valve has a long service life.
6, the lower mounted stem and stem head step to prevent stem spray, such as fire caused by stem seal damage, the step and the valve body can also form a metal contact, to ensure that the stem seal.
7,Anti-static function: the spring is set between the ball, stem and valve body, which can lead out the static electricity generated during the switching process.
