Buying ductile iron (DI) pipe requires understanding specific industry standards, pressure classes, and protective coatings to ensure long-term durability for water or sewage systems. Because ductile iron is far more flexible and break-resistant than traditional cast iron, it is the standard for high-pressure municipal and industrial applications. 1. Key Specifications to Choose
: Modern pressure-based classes. For example, a Class 350 pipe is rated for a working pressure of 350 psi.
When requesting a quote from manufacturers like Jindal Saw Ltd or Electrosteel Castings , you must specify these technical parameters: : buy ductile iron pipe
: Traditional thickness-based classes. K9 is the most common for high-pressure water mains, while K7 is often used for lower-pressure distribution or irrigation.
: Ensure compliance with international standards such as ISO 2531 (general water applications), EN 545 (potable water), or EN 598 (sewage and drainage). K9 is the most common for high-pressure water
: Standard lengths are typically 6 meters (approx. 20 feet). Common diameters range from DN80 (3 inches) to DN2000 (80 inches). 2. Essential Protective Coatings
Ductile iron is strong but requires protection against soil and fluid corrosion. EN 545 (potable water)
Difference of ductile iron pipe fittings EN 545 and EN 598 standards