(1) Wear resistance; because the valve core of the live ball valve is spray welded with alloy steel; the sealing ring is surfacing welded with alloy steel, so the hard-sealed ball valve will not produce too much wear when it is switched on and off. (Its hardness coefficient is 65-70);
(2) The sealing performance is good; because the sealing of the live connection ball valve is manually ground, it can not be used until the valve core and the sealing ring are completely matched. Therefore, the sealing performance of the union ball valve is reliable;
(3) The switch is light; since the bottom of the sealing ring of the live connection ball valve adopts a spring to make the sealing ring and the valve core tightly hug together, the switch is very light when the external force exceeds the pre-tightening force of the spring;
(4) Long service life: Union ball valves have been widely used in petroleum, chemical, power generation, papermaking, atomic energy, aviation, rockets and other sectors, as well as people's daily lives.
