Coupling, Step Coupling ( DN50 - DN3000 )

Body Material: The body of the ductile iron coupling is made from ductile iron, a type of cast iron that has graphite nodules in its microstructure. This material provides excellent strength, ductility, and resistance to corrosion. 

Two-Piece or Split Design: Ductile iron couplings often have a two-piece or split design, allowing them to be installed without disassembling the pipes. This facilitates easy and quick installation in the field. 

Gasket Sealing: The coupling includes a sealing gasket made of rubber or other elastomeric materials to ensure a watertight and leak-proof connection between the pipes. 

Flanged or Plain Ends: Ductile iron couplings are available with flanged ends or plain ends, depending on the connection requirements. Flanged ends are suitable for connecting to other flanged components, while plain ends may be used with pipes or fittings that have plain ends. 

Bolts and Nuts: The coupling is secured around the pipe ends using bolts and nuts, creating a robust and reliable connection. 

Water and Wastewater Systems: Ductile iron couplings are commonly used in water distribution systems, wastewater treatment plants, and other fluid conveyance applications. 

Industrial Piping: They find applications in various industrial settings, providing a quick and efficient means of joining ductile iron pipes. 

Pipe Connection: The primary function of the ductile iron coupling is to connect two sections of ductile iron pipes securely. 

Flexibility: The split design allows for flexibility during installation, making it possible to install the coupling without completely separating the connected pipes. 

Varied Sizes: Ductile iron couplings come in a range of sizes to accommodate different pipe diameters and specifications. 

ANSI, AWWA, or Other Standards: Ductile iron couplings are manufactured to comply with industry standards, such as those set by the American National Standards Institute (ANSI) or the American Water Works Association (AWWA).