1、 Wear resistance; Because the ball valve core of hard seal ball valve is alloy steel spray welding,and the sealing ring is alloy steel surfacing, so the hard sealed ball valve will not produce too much wear when opening and closing.
2、 Good sealing performance; As the sealing of hard sealed ball valve is manually ground, it can not be used until the valve core is completely consistent with the sealing ring. So its sealing performance is reliable.
3、 Light switch; Because the bottom of the sealing ring of the hard sealed ball valve adopts a spring to hold the sealing ring tightly with the valve core, 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 the advantages of simple and compact structure, reliable sealing and convenient maintenance. The sealing surface and spherical surface are often closed, which is not easy to be eroded by the medium and easy to operate and maintain. It is suitable for general working media such as water, solvent, acid and natural gas. It is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid regulation and control.
