Our factory producing all kinds of metal hard seal ball valve, metal hard seal fixed ball valve is one of them. It is widely used in petrochemical, metallurgical, power, light industry and other industries, meet the users to different conditions such as temperature, pressure, medium and caliber.

Structure characteristics Besides the mutual flow resistance and the fixed ball ball valve opening and closing rapidly, as well as good sealing performance, has the following characteristics:

1. The sphere seal face and seat sealing surface for different conditions, using different methods of surface hardening treatment, to ensure that a pair of sealing material compatibility, and has suitable hardness difference, thus ensuring can reliable seal in the corresponding operating conditions.

 2. Import and export of the valve spring loaded with special shape, so as to ensure the ball between two seat is always in a state of place. The seat of the special scraper seal face also ensure that it and the ball.