Ductile Iron Dual Plate Wafer Type Check Valve
Ductile iron Dual Plate Wafer Type Check Valve, also known as ductile cast iron, ductile iron , nodular cast iron, spheroidal graphite iron, with the advantages of gray cast iron. Our DI material is America standard ASTM A536 65 45 12 and ASTM A395 65 45 15. Also be similar to FCD450, GGG40,JIS-G5502.
While most varieties of cast iron are weak in tension and brittle, ductile iron has much more impact and fatigue resistance, due to its nodular graphite inclusions. And with the advantages of gray cast iron, and with a little steel advantage such as high strength, toughness, ductility, hardening, thermal workability, etc.…