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Use of Cast Iron Valves

Cast iron valves for its inexpensive, simple manufacturing process, and its better corrosion resistance, widely used in various sectors of the national economy, including watercourses, construction equipment, gas equipment, marine, fire-fighting equipment, petrochemical equipment, iron equipment, food processing equipment, piping accessories indispensable.
The operating temperature of cast iron valve usually ranges from ambient (room) temperature to the following 225 ℃. However, the gray cast iron is a brittle material, limiting the range of cast iron valves.
In all cast iron valves, because malleable iron and ball cast change internal microstructure, malleable Iron organization is ferrite, center part is pearlite, ductile cast iron is the result of adding elements and modification, and collect a spherical graphite in the casting process, thus, its mechanical properties are much better than ordinary gray cast iron, the use of working pressure is higher.

Cast Iron Ball Valves

 

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