Customization: | Available |
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After-sales Service: | One Year |
Warranty: | One Year |
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Ductile Iron Pipe (DIP), also known as Nodular Cast Iron Pipe or Spheroidal Graphite Cast Iron Pipe, is a high-strength, durable piping solution widely used in water distribution, wastewater systems, and industrial applications. Its unique microstructure, characterized by graphite nodules embedded in a ferritic or pearlitic matrix, provides exceptional flexibility, impact resistance, and longevity compared to traditional Cast Iron Pipe.
Superior Material Properties:
Ductile Cast Iron Pipes combine the strength of steel with the corrosion resistance of cast iron, thanks to their spheroidal graphite structure. This eliminates the brittleness of gray iron, making them ideal for high-pressure applications.
Centrifugally Cast Ductile Iron Pipes ensure uniform wall thickness and enhanced structural integrity.
Versatile Configurations:
Flanged Ductile Iron Pipe: Designed for easy bolted connections in pumping stations or valve assemblies.
Socketed End Ductile Iron Pipe: Features push-on joints with rubber gaskets for quick, leak-proof installation.
Custom Pipe Fittings (tees, elbows, reducers) are available to suit complex pipeline networks.
Corrosion Protection:
Pipe Coating options include cement mortar lining (CML), epoxy, or polyethylene to resist chemical and electrochemical degradation. External coatings like zinc-aluminum (ZMA) or bitumen extend service life in aggressive soils.
Applications:
Water Distribution: Preferred for municipal potable water systems due to its hydraulic efficiency and leak-resistant joints.
Sewage and stormwater systems, industrial pipelines, and fire protection networks.
Standards and Compliance:
Manufactured to meet ISO 2531, EN 545, AWWA C151/C115, and other international standards.
Longevity: 100+ year service life with minimal maintenance.
Cost-Effective: Lower lifecycle costs compared to PVC or steel pipes.
Sustainability: Fully recyclable and energy-efficient production.
Whether for urban infrastructure or industrial projects, Ductile Iron Pipes (DIP) deliver unmatched reliability. Partner with certified suppliers to ensure quality Pipe Coating, Fittings, and installation support.
High-quality Ductile iron Pipe Parameters. | |||||||
Specification | K7 Wall Thickness/mm | K8 Wall Thickness/mm | K9 Wall Thickness/mm | Theoretical Weight/Ton | |||
Nominal Wall Thickness | Minimum Wall Thickness | Nominal Wall Thickness | Minimum Wall Thickness | Nominal Wall Thickness | Minimum Wall Thickness | ||
DN80 | / | / | / | / | 6 | 4.7 | 0.077 |
DN100 | 4.2 | 2.9 | 4.8 | 3.5 | 6 | 4.7 | 0.095 |
DN150 | 4.55 | 3.25 | 5.2 | 3.9 | 6 | 4.7 | 0.144 |
DN200 | 4.9 | 3.6 | 6.5 | 4.3 | 6.3 | 4.8 | 0.194 |
DN250 | 5.25 | 3.95 | 6 | 4.7 | 6.8 | 5.25 | 0.255 |
DN300 | 5.6 | 4.3 | 6.4 | 4.8 | 7.2 | 5.6 | 0.323 |
DN350 | 5.95 | 4.65 | 6.8 | 5.15 | 7.7 | 6.05 | 0.403 |
DN400 | 6.3 | 4.6 | 7.2 | 5.5 | 8.1 | 6.4 | 0.482 |
DN450 | 6.65 | 4.9 | 7.6 | 5.85 | 8.6 | 6.85 | 0.577 |
DN500 | 7 | 5.2 | 8 | 6.2 | 9 | 7.2 | 0.669 |
DN600 | 7.7 | 5.8 | 8.8 | 6.9 | 9.9 | 8 | 0.882 |
DN700 | 8.4 | 6.4 | 9.4 | 7.6 | 10.8 | 8.8 | 1.123 |
DN800 | 9.1 | 7 | 10.4 | 8.3 | 11.7 | 9.6 | 1.394 |
DN900 | / | / | 11.2 | 9 | 12.6 | 10.4 | 1.691 |
DN1000 | / | / | 12 | 9.7 | 13.5 | 11.2 | 2.017 |
DN1200 | / | / | 13.6 | 11.1 | 15.3 | 12.8 | 2.758 |
DN1400 | / | / | 15.2 | 12.5 | 17.1 | 14.4 | 3.669 |
DN1500 | / | / | 16 | 13.2 | 18 | 15.2 | 4.175 |
DN1600 | / | / | 16.8 | 13.9 | 18.9 | 16 | 4.668 |
DN1800 | / | / | 18.4 | 15.3 | 20.7 | 17.6 | 5.803 |
DN2000 | / | / | 20 | 16.7 | 22.5 | 19.2 | 7.043 |
DN2200 | / | / | 21.6 | 18.1 | 24.3 | 20.8 | 8.332 |
DN2400 | / | / | 23.2 | 20.3 | 26.1 | 22.4 | 9.822 |
DN2600 | / | / | 24.8 | 20.9 | 27.9 | 24 | 11.392 |
K7, K8, and K9 are all calculated based on the same theoretical weight. |
Pressure - Bearing Performance Parameters of Ductile Iron Pipes | |||||||
DN | DE(mm) | Pressure Rating | Radial Rigidity (KN/M²) |
Nominal Wall Thickness (mm) |
PFA MPA |
PAM MPA |
PEA MPA |
DN80 | 98 | C40 | 856 | 4.4 | 4.0 | 4.8 | 5.3 |
DN100 | 118 | C40 | 481 | 4.4 | 4.0 | 4.8 | 5.3 |
DN125 | 144 | C40 | 271 | 4.5 | 4.0 | 4.8 | 5.3 |
DN150 | 170 | C40 | 163 | 4.5 | 4.0 | 4.8 | 5.3 |
DN200 | 222 | C40 | 84 | 4.7 | 4.0 | 4.8 | 5.3 |
DN250 | 176 | C30 | 52 | 4.9b | 3.0 | 3.6 | 4.1 |
DN300 | 326 | C30 | 34 | 5.1 | 3.0 | 3.6 | 4.1 |
DN350 | 378 | C30 | 44 | 6.3b | 3.0 | 3.6 | 4.1 |
DN400 | 429 | C25 | 34 | 6.5b | 3.0 | 3.6 | 4.1 |
DN450 | 480 | C25 | 23 | 6.5b | 2.5 | 3.0 | 3.5 |
DN500 | 532 | C25 | 17 | 6.5 | 2.5 | 3.0 | 3.5 |
DN600 | 635 | C25 | 17 | 7.6b | 2.5 | 3.0 | 3.5 |
DN700 | 738 | C25 | 17 | 8.8b | 2.5 | 3.0 | 3.5 |
DN800 | 842 | C25 | 15 | 9.6 | 2.5 | 3.0 | 3.5 |
DN900 | 945 | C25 | 15 | 10.6 | 2.5 | 3.0 | 3.5 |
DN1000 | 1048 | C25 | 14 | 11.6 | 2.5 | 3.0 | 3.5 |
DN1100 | 1152 | C25 | 14 | 12.6 | 2.5 | 3.0 | 3.5 |
DN1200 | 1255 | C25 | 14 | 13.6 | 2.5 | 3.0 | 3.5 |
DN1400 | 1462 | C25 | 14 | 15.7 | 2.5 | 3.0 | 3.5 |
DN1500 | 1565 | C25 | 14 | 16.7 | 2.5 | 3.0 | 3.5 |
DN1600 | 1668 | C25 | 13 | 17.7 | 2.5 | 3.0 | 3.5 |
DN1800 | 1785 | C25 | 13 | 19.7 | 2.5 | 3.0 | 3.5 |
DN2000 | 2082 | C25 | 13 | 21.8 | 2.5 | 3.0 | 3.5 |
DN2200 | 2288 | C25 | 13 | 23.8 | 2.5 | 3.0 | 3.5 |
DN2400 | 2495 | C25 | 13 | 25.8 | 2.5 | 3.0 | 3.5 |
DN2600 | 2702 | C25 | 13 | 27.9 | 2.5 | 3.0 | 3.5 |
DN2800 | 2908 | C25 | 13 | 29.9 | 2.5 | 3.0 | 3.5 |
DN3000 | 3115 | C25 | 13 | 31.9 | 2.5 | 3.0 | 3.5 |