Class600 metal hard sealing high temperature ball valve product introduction
Class600 metal hard seal high temperature ball valve is composed of valve body, ball, stem, metal seat, flexible graphite sealing ring between seat and valve body, metal elastic ring, metal elastic ring pressure ring and gasket. The two seats are a metal seat that slides in the body insert groove and a deformable metal elastic ring seat. The ball valve structure in the ball heated expansion of the metal elastic ring seat can be deformed, the ball will not be stuck can not move. Class600 metal hard sealing high temperature ball valve is used to cut off or connect the medium in the pipeline. Selection of different materials, Class600 metal hard sealing high temperature ball valve is suitable for non-corrosive medium, oxidizing medium, urea and other media, especially suitable for containing solid particle medium, slurry, coal, ash and other harsh conditions.
Metal hard sealing ball valve closing parts ball around the center line of the valve body for rotation to open, close a valve, the seal is embedded in the seat, the metal seat end is provided with a spring, when the sealing surface wear or burn, under the action of the spring to push the seat and ball metal seal. On the metal hard sealing ball valve sealing, metal to metal sealing line sealing is best, from the sealing principle and sealing ratio pressure is easier to ensure the sealing, in the case of a small preload can ensure enough sealing ratio pressure, so that the metal sealing ball valve to seal. But it depends on the pressure grade and caliber of the pipeline to determine the contact width of the sealing surface of the valve seat, in order to prevent the sealing surface from being crushed.
