Wear resistance; because the valve core of the hard-sealed ball valve is alloy steel spray-welded, and the sealing ring is alloy steel surfacing, so the hard-sealed ball valve will not produce too much wear when switching. (Its hardness coefficient is 65-70)

Second, the sealing performance is good; because the sealing of the hard-sealed ball valve is artificially ground, it cannot be used until the valve core and the sealing ring are completely matched. So his sealing performance is reliable.

Third, the switch is light; because the bottom of the sealing ring of the hard-sealed ball valve adopts a spring to hold the sealing ring and the valve core tightly together, the switch is very light when the external force exceeds the preload of the spring.

4. Long service life: It has been widely used in petroleum, chemical industry, power generation, papermaking, atomic energy, aviation, rocket and other departments, as well as people's daily life.

The pneumatic ball valve has a simple and compact structure, reliable sealing and convenient maintenance. The sealing surface and the spherical surface are always in a closed state, which is not easily eroded by the medium, and is easy to operate and maintain. It is suitable for general working media such as water, solvent, acid and natural gas. It is mainly used for cutting off Or connect the medium in the pipeline, and can also be used for fluid regulation and control.