PRODUCT
‹
›
‹
›
DN Ductile Iron Pipe Class K9 C25 C30 C40 Socket Spigot Water Pipe
T-type C-grade socket ductile iron pipe has become the preferred material for modern municipal pipe network construction due to its high pressure adaptability, excellent corrosion resistance and flexible interface design. Its standardized production (in compliance with multiple standards such as ISO/GB/EN) and full-scenario applicability (water supply, drainage, heating, etc.) provide a reliable and economical solution for infrastructure.
1. Product definition and standards
C-level definition: represents the pressure level standard of the pipeline, divided according to the international standard ISO2531 and the national standard GB/T13295-2019, GB/T26081-2022, common levels include:
C25: working pressure 2.5MPa
C30: working pressure 3.0MPa
C40: working pressure 4.0MPa.
Core material: ductile iron (graphite has a spherical structure), with high mechanical properties (tensile strength 370~480MPa), combining the strength of steel and the corrosion resistance of iron.
2. Specifications and parameters
Diameter range: DN80 to DN2600, covering the needs of small and medium-sized water supply to large municipal pipe networks.
Single pipe length: The standard effective length is 6 meters, and some manufacturers provide 6~6.5 meters customization.
Interface form: T-type socket-type flexible interface, sealed with rubber ring, allowing a certain angle of deflection (good seismic resistance and convenient installation).
3. Structural features
Inner anti-corrosion layer
Cement mortar lining: ordinary cement or high-alumina cement material, to ensure water delivery hygiene and reduce fluid resistance.
Outer anti-corrosion layer
Double-layer protection:
Spray zinc layer (≥130g/㎡, high-quality products up to 200g/㎡);
Final coating (asphalt paint or environmentally friendly epoxy resin paint, thickness ≥70μm).
Significantly improve soil environmental adaptability, design life of more than 50 years.
4. Performance advantages
High pressure bearing capacity: C40 grade can withstand 4.0MPa high pressure, suitable for long-distance water transfer and high-pressure pipeline network.
Flexible seismic resistance: T-type interface allows micro-displacement of pipelines to adapt to foundation settlement and seismic disturbance.
Economical: thin-wall design reduces material consumption, the comprehensive cost is lower than steel pipe, and the maintenance cost is low.
Environmental protection and sanitation: cement lining meets drinking water safety standards (such as ISO4179).
Standard Size
Mauritania Project
In the process of urban construction in Mauritania, ductile iron pipes have laid a solid foundation for the reliable operation of municipal projects with their excellent performance.
Ethiopia kismayo urban water supply
It is resistant to high temperature and salt-alkali corrosion, adapted to the local desert climate and soil conditions, and ensures long-term and stable water supply in the pipeline.
Durban, South Africa
The flexible interface speeds up installation, is suitable for pipe network renovation in old urban areas, facilitates subsequent maintenance, and reduces operating costs.
Durban City Water Supply, South Africa
Adapted to Durban's hot and humid climate and coastal saline environment, the anti-corrosion coating effectively resists rust and ensures the long-term stability of the water supply system.
Dammam, Saudi Arabia
Adapting to the hot and dry climate of Daman, the pipeline has strong thermal stability, ensuring the reliable operation of the water supply system in hot environments.
Shaanxi sewage renovation
The inner wall anti-corrosion layer resists the erosion of acid and alkali substances in sewage, adapts to complex water quality, and extends the service life of the pipeline.
Xinjiang
Adapting to the large temperature difference between day and night and seasons in Xinjiang, the pipeline has strong stability in thermal expansion and contraction, ensuring smooth water supply.
Greek City Water Supply
Adapted to the water quality characteristics of Greek coastal cities, it resists seawater backflow and salt erosion, and ensures stable water quality.
![EN598 K7 K8 K9 K12 DCI Pipe SIA T Type 80mm 100mm 150mm Ductile Iron Cast Pipe For Underground Water Supply]( "EN598 K7 K8 K9 K12 DCI Pipe SIA T Type 80mm 100mm 150mm Ductile Iron Cast Pipe For Underground Water Supply")
EN598 K7 K8 K9 K12 DCI Pipe SIA T Type 80mm 100mm 150mm Ductile Iron Cast Pipe For Underground Water Supply
![Factory Supply ISO2531 EN545 EN598 DN100 DN125 DN150 DN300 DN400 DN600 Ductile Cast Iron Pipe Tube For Water]( "Factory Supply ISO2531 EN545 EN598 DN100 DN125 DN150 DN300 DN400 DN600 Ductile Cast Iron Pipe Tube For Water")
Factory Supply ISO2531 EN545 EN598 DN100 DN125 DN150 DN300 DN400 DN600 Ductile Cast Iron Pipe Tube For Water![Ductile Cast Iron Pipes Water Pressure Ductile Iron Round Pipes DN400 DN200 Drink Water Supply Pipelines Ductile Pipe]( "Ductile Cast Iron Pipes Water Pressure Ductile Iron Round Pipes DN400 DN200 Drink Water Supply Pipelines Ductile Pipe")
Ductile Cast Iron Pipes Water Pressure Ductile Iron Round Pipes DN400 DN200 Drink Water Supply Pipelines Ductile Pipe![DN Ductile Iron Pipe Class K9 C25 C30 C40 Socket Spigot Water Pipe]( "DN Ductile Iron Pipe Class K9 C25 C30 C40 Socket Spigot Water Pipe")
DN Ductile Iron Pipe Class K9 C25 C30 C40 Socket Spigot Water Pipe![UNIVERSAL COUPLING]( "UNIVERSAL COUPLING")
UNIVERSAL COUPLING![Hot Sales K7 K8 K9 7mm 9mm 12mm Thickness ISO 2531 EN545 DN300 DN500 C40 C30 C25 DI Pipe Ductile Cast Pipe Ductile Iron Pipe]( "Hot Sales K7 K8 K9 7mm 9mm 12mm Thickness ISO 2531 EN545 DN300 DN500 C40 C30 C25 DI Pipe Ductile Cast Pipe Ductile Iron Pipe")
Hot Sales K7 K8 K9 7mm 9mm 12mm Thickness ISO 2531 EN545 DN300 DN500 C40 C30 C25 DI Pipe Ductile Cast Pipe Ductile Iron Pipe![Ductile Cast Iron Pipe Class k8 K9 K10 Factory supply Fast delivery shipping wholesale price]( "Ductile Cast Iron Pipe Class k8 K9 K10 Factory supply Fast delivery shipping wholesale price")
Ductile Cast Iron Pipe Class k8 K9 K10 Factory supply Fast delivery shipping wholesale price![Ductile iron pipes class k9 for drinking water]( "Ductile iron pipes class k9 for drinking water")
Ductile iron pipes class k9 for drinking water![Prime Quality Ductile Cast Iron Pipe C40 8 Inch 12 Inch 300mm 450mm 1000mm K7 K8 K9 K12 Ductile Iron Pipe and Fittings]( "Prime Quality Ductile Cast Iron Pipe C40 8 Inch 12 Inch 300mm 450mm 1000mm K7 K8 K9 K12 Ductile Iron Pipe and Fittings")
Prime Quality Ductile Cast Iron Pipe C40 8 Inch 12 Inch 300mm 450mm 1000mm K7 K8 K9 K12 Ductile Iron Pipe and Fittings![ISO2531,EN545,EN598 ductile iron pipe]( "ISO2531,EN545,EN598 ductile iron pipe")
ISO2531,EN545,EN598 ductile iron pipe![ISO 8329 K9 DN 200 300 350 Customization Diameter Size Ductile Iron Pipe with High Strength]( "ISO 8329 K9 DN 200 300 350 Customization Diameter Size Ductile Iron Pipe with High Strength")
ISO 8329 K9 DN 200 300 350 Customization Diameter Size Ductile Iron Pipe with High Strength![Wholesale DI Ductile Iron Flanged Pipe Flange Welding Pipe for Water or Sewerage]( "Wholesale DI Ductile Iron Flanged Pipe Flange Welding Pipe for Water or Sewerage")
Wholesale DI Ductile Iron Flanged Pipe Flange Welding Pipe for Water or Sewerage![EN545 Cement Lined Ductile Iron Flanged Pipe for Water Supply Pipeline]( "EN545 Cement Lined Ductile Iron Flanged Pipe for Water Supply Pipeline")
EN545 Cement Lined Ductile Iron Flanged Pipe for Water Supply Pipeline![Double Flanged ISO2531 En545 En598 Class K8 K9 C25 C30 C40 Sewage Water Ductile Cast Iron Pipe]( "Double Flanged ISO2531 En545 En598 Class K8 K9 C25 C30 C40 Sewage Water Ductile Cast Iron Pipe")
Double Flanged ISO2531 En545 En598 Class K8 K9 C25 C30 C40 Sewage Water Ductile Cast Iron Pipe![Ductile iron pipe:DN300 PN16 K-type Standard:ISO2531/EN545]( "Ductile iron pipe:DN300 PN16 K-type Standard:ISO2531/EN545")
Ductile iron pipe:DN300 PN16 K-type Standard:ISO2531/EN545![K7 K8 K9 DN500 600mm Ductile Iron Pipe Ductile Iron Pipe 400mm Ductile Cast Iron Pipe]( "K7 K8 K9 DN500 600mm Ductile Iron Pipe Ductile Iron Pipe 400mm Ductile Cast Iron Pipe")
K7 K8 K9 DN500 600mm Ductile Iron Pipe Ductile Iron Pipe 400mm Ductile Cast Iron Pipe![K-Type Flange Ductile lron Pipe]( "K-Type Flange Ductile lron Pipe")
K-Type Flange Ductile lron Pipe![ISO 2531 DN80-DN2600 painting ductile iron]( "ISO 2531 DN80-DN2600 painting ductile iron")
ISO 2531 DN80-DN2600 painting ductile iron![Class K9 ductile cast iron pipe price list]( "Class K9 ductile cast iron pipe price list")
Class K9 ductile cast iron pipe price list![C-CLASS Ductile Iron Pipe]( "C-CLASS Ductile Iron Pipe")
C-CLASS Ductile Iron Pipe![Ductile iron pipe: DN80-DN2600 goods in stock wall thickness:K7-K12/C25-C100 as your required Standard:ISO2531/EN545/EN598]( "Ductile iron pipe: DN80-DN2600 goods in stock wall thickness:K7-K12/C25-C100 as your required Standard:ISO2531/EN545/EN598")
Ductile iron pipe: DN80-DN2600 goods in stock wall thickness:K7-K12/C25-C100 as your required Standard:ISO2531/EN545/EN598![Ductile iron pipe: DN800 K9 T-type Standard:ISO2531/EN545]( "Ductile iron pipe: DN800 K9 T-type Standard:ISO2531/EN545")
Ductile iron pipe: DN800 K9 T-type Standard:ISO2531/EN545![Professional K7 K8 K9 K10 K12 K14 C20 C25 C30 C40 C50 C64 C100 T Type Round Ductile Iron Pipe Weight]( "Professional K7 K8 K9 K10 K12 K14 C20 C25 C30 C40 C50 C64 C100 T Type Round Ductile Iron Pipe Weight")
Professional K7 K8 K9 K10 K12 K14 C20 C25 C30 C40 C50 C64 C100 T Type Round Ductile Iron Pipe Weight![Internal Self-Anchored Ductile lron Pipe]( "Internal Self-Anchored Ductile lron Pipe")
Internal Self-Anchored Ductile lron Pipe![K7/K8/K9/C40/C30/C25 Cement Lined Nodular/Ductile Cast Iron Pipes DN80-400 Longford Pipeline Welded 600MM Round 50mm]( "K7/K8/K9/C40/C30/C25 Cement Lined Nodular/Ductile Cast Iron Pipes DN80-400 Longford Pipeline Welded 600MM Round 50mm")
K7/K8/K9/C40/C30/C25 Cement Lined Nodular/Ductile Cast Iron Pipes DN80-400 Longford Pipeline Welded 600MM Round 50mm![High Quality K7, K8, K9 DCI Spigot Socket Pipe Ductile Cast Iron Pipe]( "High Quality K7, K8, K9 DCI Spigot Socket Pipe Ductile Cast Iron Pipe")
High Quality K7, K8, K9 DCI Spigot Socket Pipe Ductile Cast Iron Pipe![Factory Supply ISO2531 EN545 EN598 DCI K9 C40 C30C25 DN100 DN300 DN400 DN1000 Ductile Iron Pipe For Drink Water Pipelines]( "Factory Supply ISO2531 EN545 EN598 DCI K9 C40 C30C25 DN100 DN300 DN400 DN1000 Ductile Iron Pipe For Drink Water Pipelines")
Factory Supply ISO2531 EN545 EN598 DCI K9 C40 C30C25 DN100 DN300 DN400 DN1000 Ductile Iron Pipe For Drink Water Pipelines![Ductile iron pipe:DN1200 K9 Standard:ISO2531/EN545]( "Ductile iron pipe:DN1200 K9 Standard:ISO2531/EN545")
Ductile iron pipe:DN1200 K9 Standard:ISO2531/EN545![Ductile Iron Pipes Socket Spigot K7 Price List with Cement Lining Weights Uae Prices Per Ton Per Meter 450mm Pn16]( "Ductile Iron Pipes Socket Spigot K7 Price List with Cement Lining Weights Uae Prices Per Ton Per Meter 450mm Pn16")
Ductile Iron Pipes Socket Spigot K7 Price List with Cement Lining Weights Uae Prices Per Ton Per Meter 450mm Pn16![External Self-Anchored Ductile lron Pipe]( "External Self-Anchored Ductile lron Pipe")
External Self-Anchored Ductile lron Pipe![High Quality K7 K8 K9 DN200 DN300 DN500 DN600 C30 C40 Nodular Cast Tubing Ductile Iron Pipes for Industrial]( "High Quality K7 K8 K9 DN200 DN300 DN500 DN600 C30 C40 Nodular Cast Tubing Ductile Iron Pipes for Industrial")
High Quality K7 K8 K9 DN200 DN300 DN500 DN600 C30 C40 Nodular Cast Tubing Ductile Iron Pipes for Industrial![Gate Valve]( "Gate Valve")
Gate Valve![TF BEND]( "TF BEND")
TF BEND
Contact Us
If you have any cooperation intentions or product questions, please leave us a message!
We will get back to you as soon as possible!
Search Starts Here
First class quality service and professional after-sales team.
In order to provide you with suitable products, please provide us with information
Get in Touch
We respect your confidentiality and all information are protected.
