Zhejiang Dulide Valve Co.,Ltd



Ball Valve Features

First, wear resistance; since the valve core of the hard seal ball valve is alloy steel spray welding, the seal ring is alloy steel surfacing, so the hard seal ball valve does not cause too much wear when switching. (It has a hardness coefficient of 65-70):

Second, the sealing performance is good; since the sealing of the hard-sealed ball valve is artificial grinding, it can be used until the valve core and the sealing ring are completely matched. Therefore, his sealing performance is reliable.

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

Fourth; long service life: has been widely used in petroleum, chemical, power generation, paper, atomic energy, aviation, rocket and other departments, as well as people’s daily lives.

The pneumatic ball valve has compact structure, reliable sealing, simple structure and convenient maintenance. The sealing surface and the spherical surface are often closed, which is not easy to be washed by the medium, easy to operate and maintain. It is suitable for general working medium such as water, solvent, acid and natural gas. The medium used to cut or switch the pipeline can also be used for fluid regulation and control.


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