Wear-resistant: Because the valve core of a hard-seal ball valve is made of alloy steel by spray welding, and the sealing ring is made of alloy steel by overlay welding, the hard-seal ball valve does not experience significant wear during opening and closing. (Its hardness coefficient is 65-70).
Good sealing performance: The seal of a hard-seal ball valve is achieved through manual grinding until the valve core and sealing ring are perfectly aligned. Therefore, its sealing performance is reliable.
Easy to open and close: Because the bottom of the sealing ring in a hard-seal ball valve uses a spring to tightly hold the sealing ring and valve core together, opening and closing is very easy even when external forces exceed the spring's preload.
Long service life: Widely used in petroleum, chemical, power generation, papermaking, nuclear energy, aviation, rocket, and other sectors, as well as in daily life.
Pneumatic ball valves have a simple and compact structure, reliable sealing, and convenient maintenance. The sealing surface and the ball are usually in a closed state, making them less susceptible to erosion by the medium. They are easy to operate and maintain, suitable for general working media such as water, solvents, acids, and natural gas. They are mainly used to cut off or connect media in pipelines, and can also be used for fluid regulation and control.
