Ductile Cast Iron Butterfly Valve is a kind of valve made of Ductile Cast Iron to isolate or regulate the flow of a fluid by rotating disk. Ductile Cast Iron Butterfly Valve can control different kinds of fluids: water, wastewater, seawater, sewage, steam, oil, gas, slurry, ect. THIT supply a broad range of Metallic Butterfly Valves widely used in water supply, irrigation, fire protection, sewage and drainage, desalination, wastewater treatment projects.