Ball valve is mainly used to cut off or through the media, but also for the adjustment and control of fluid. Compared with other types of valves, ball valve has the following advantages:
1, fluid resistance is small, ball valve is the smallest of all types of fluid resistance, even if the ball valve, the fluid resistance is also very small.
2, switch quickly and easily, as long as the valve rod to rotate 90 degrees, ball valve on the completion of the fully open or fully closed action, it is easy to achieve rapid opening and closing.
3, good sealing performance. Ball valve seat sealing ring is generally made of PTFE and other elastic materials, easy to ensure the seal, and the sealing force of the ball valve with the increase of the pressure of the medium.
4, the valve stem seal reliable. Ball valve opening and closing only for rotary movement, so the stem packing seal is not easy to be destroyed, and the valve stem sealing force increased with the increase of the pressure of the medium.
5, the ball valve opening and closing only do 90 degrees rotation, it is easy to achieve automatic control and remote control, ball valve can be configured pneumatic devices, electric devices, hydraulic devices, gas-liquid linkage or electro hydraulic linkage device.
6, the valve channel is smooth, easy to deposit the media, can pass the ball to the pipeline.