1. The ball valve has small fluid resistance and low flow resistance (actually zero)
2. The opening and closing of the ball valve is fast and convenient.
3. The ball valve has good sealing performance.
4. The ball valve has a long service life.
5. The high reliability of the ball valve is mainly due to:
① The ball and valve seat pair of sealing pairs will not cause scratches, sharp wear and other failures, and will not get stuck during operation (without lubricant), so it can be reliably applied to corrosive media and low-boiling liquids. ;
②The built-in valve stem structure eliminates the potential accident risk that the valve stem may fly out due to the loosening of the packing gland under the action of fluid pressure;
③The ball valve with anti-static and fire-resistant structure is suitable for pipelines that transport oil, natural gas, and gas.
6. Smooth and smooth passages in the valve body are more suitable for conveying viscous fluids, slurries, and solid particles.
7. Because it will not get stuck when working (when there is no lubricant), it can be reliably applied to corrosive media and low boiling point liquids.
8. The ball-shaped closing piece can be automatically positioned in position and can withstand the high pressure difference when it is closed.
9. In a large pressure and temperature range, it can achieve complete two-way sealing.
10. When fully open and fully closed, the sealing surface of the ball and valve seat is isolated from the medium, so the medium passing through the valve at high speed will not cause erosion of the sealing surface.
11. Compact structure and light weight, it can be considered as a reasonable valve structure for cryogenic medium system.
