Ductile Iron Fitting, commonly known as DI, refers to a type of fitting used in piping systems. DI F/SPIGOT stands for Ductile Iron Flanged Spigot. It is a component designed with a flanged opening on one end and a spigot (plain) end on the other.

Where and How it is Used:

DI F/SPIGOT fittings are widely used in water supply networks, sewage systems, and industrial piping projects where there is a need to connect pipes or equipment with flanged ends to pipes with plain (spigot) ends. The flanged end allows for a secure connection to the adjacent flanged pipe or equipment, while the spigot end facilitates easy and straightforward insertion into the plain (spigot) end of the pipe.


  1. Versatility: DI F/SPIGOT fittings offer versatility in connecting pipes or equipment with different end types, allowing for smooth transitions and compatibility with various pipeline configurations.
  2. Secure Connection: The flanged end of the fitting provides a strong and secure connection to the adjacent flanged pipe or equipment, ensuring a leak-free joint.
  3. Easy Installation: The spigot end of the fitting allows for simple and quick insertion into the plain (spigot) end of the pipe, making it convenient for assembly.
  4. Strength and Durability: Ductile iron provides excellent strength and durability, making DI F/SPIGOT fittings reliable and capable of withstanding the pressures and stresses in piping systems.
  5. Corrosion Resistance: DI F/SPIGOT fittings are resistant to corrosion, ensuring a longer service life and maintaining the integrity of the pipeline.
  6. Leakage Prevention: The sturdy construction and secure connections of DI F/SPIGOT fittings help prevent leaks, enhancing the overall reliability of the piping system.
  7. Cost-Effectiveness: Due to their durability and low maintenance requirements, DI F/SPIGOT fittings contribute to cost savings over the lifetime of the piping system.

Overall, DI F/SPIGOT fittings provide a practical and efficient solution for connecting pipes or equipment with flanged ends to plain (spigot) end pipes. Their benefits in terms of versatility, secure connection, easy installation, strength, corrosion resistance, and cost-effectiveness make them a preferred choice for various applications in water supply, sewage systems, and industrial processes.