1、 Wear resistance; Since the core of hard seal ball valve is alloy steel spray welding, and the seal ring is alloy steel surfacing welding, hard seal ball valve will not have too much wear when opening and closing. 2、 Good sealing performance; Since the hard seal ball valve is sealed by manual grinding, it can not be used until the valve core and seal ring are fully matched. Therefore, the sealing performance is reliable.
3、 Light switch; Because the spring is used at the bottom of the seal ring to tightly hold the seal ring and 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, paper making, atomic energy, aviation, rocket and other sectors, as well as in people's daily life.
5、 Excellent performance: forged steel ball valve has small fluid resistance, simple structure, small volume and light weight. With the built-in discharge valve, the middle cavity of the valve body can be discharged outwards; The pivot shaft adopts an explosion-proof protective structure to greatly prevent leakage; The bearing with low friction coefficient reduces the torque and facilitates valve opening and closing; The reasonable contact between valve rod and valve body makes the anti-static grounding device have superior performance.
