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Metal To Metal Ball Valves


The metal sealing ball valve has two structures: floating ball and fixed ball. The metal seat ring is in contact with the spherical surface, and the seat ring and the spherical surface form a seal through the uniform spring load acting on the seat ring. Due to the action of the spring load, the auxiliary seal expands to realize the seal between the valve body and the valve seat. It is suitable for high temperature and high pressure water, steam, petroleum, coal, fiber, thick and corrosive media, and media with particles


1. The surface of the hard-sealed sphere adopts advanced spraying technology. Through the treatment of various working conditions, the highest hardness can reach HRC78.

2. The maximum hardness of the sealing surface of the valve seat can reach HRC72.

3. The ball and valve seat are paired and ground, and all the sealing areas of the entire sealing surface of the ball valve are precisely ground.

4. The load of the spring is sufficient to provide a reliable seal between the valve seat and the ball. Under low pressure conditions, a sealing grease injection system can be designed between the valve seat sealing surface and the ball.

Major Specification 

Nominal size: 2"~24"(DN50~DN600)

Nominal pressure: Class150~2500(PN10~PN420)

Standard: ISO17292, ASME B16.34, API608, API6D,

Body material:Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel

End connection:RTJ, RF, 

Operation: Lever, Gearbox, Pneumatic, Electric, Hydraulic