Q41H Type Hard Seal Ball Valve

Q41Y metal hard seal ball valve is suitable for various pipelines of Class150～Class2500, PN16～PN160, used to cut off or connect the medium in the pipeline. Selecting different materials, the metal hard-sealed ball valve can be used for non-corrosive media, weakly corrosive media, nitric acid, acetic acid, oxidizing media, urea and other media, especially for media containing solid particles, slurry, coal powder , Ash, slag and other harsh working conditions. The drive mode of the hard seal ball valve is manual, worm gear, pneumatic or electric. Metal hard seal ball valves generally adopt flange connection, but also can adopt butt welding connection.

The ball and seat of the metal hard-sealed ball valve completely adopt the metal-to-metal sealing method. In order to ensure the reliable sealing of the hard-sealed ball valve under various temperatures and pressures, according to the different operating conditions and requirements of users, a variety of advanced The hardening technology of the ball and valve seat includes supersonic spraying, nickel-based spray welding, special surface hardening, cemented carbide spray welding, etc. The surface hardness of the ball and valve seat can generally reach HRC60 or higher, and the higher can reach HRC74 or higher. The temperature resistance of the sealing surface material can reach 540℃, and the highest temperature can reach 980℃. The bonding strength of the metal hard sealing flange ball valve material can reach more than 10000PSI, and the sealing surface material also has good abrasion resistance and impact resistance. The hard-seal fixed ball valve can be suitable for most of the harsh working conditions.

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