A ductile valve is a valve that is primarily manufactured using ductile iron, which is iron that contains spheroidized free carbon known as graphite. The high percentage of graphite nodules present in ductile iron gives it better mechanical properties than other varieties of cast iron.
All KITZ ductile iron valves employ FCD-S ductile cast iron. The mechanical properties of ductile cast iron are much more suitable for the construction of valves than those of malleable iron due to the different spheroidizing processes employed.
KITZ's ductile iron valves are widely used for steam, water, gas and oil applications in a variety of industrial fields.