PU Coating and Advanced Liner for iso standard Underground Ductile Iron Pipes
Brand TOPSUN
Product origin China
Delivery time 30 days
Supply capacity 10,000 tons per year
Our ISO-standard ductile iron pipes are engineered for maximum longevity in demanding underground environments. The key to their superior performance lies in the synergistic protection system. The exterior features a robust Polyurethane (PU) coating, offering exceptional resistance to abrasion and a wide range of corrosive soils and chemicals. Internally, an advanced cement mortar or epoxy liner ensures sustained high flow capacity and guarantees water quality preservation throughout the pipeline's service life.
Manufactured in state-of-the-art facilities, our production process integrates rigorous quality control at every stage, ensuring full compliance with international ISO 2531 standards. Our technical expertise allows us to provide tailored solutions for global projects, from municipal water networks and industrial wastewater systems to mining and marine outfalls. This commitment to excellence has established us as a trusted partner for engineers and contractors worldwide.
To support timely project execution, we maintain a significant inventory of commonly specified sizes and classes, ready for quick dispatch. Our proven track record is demonstrated by successful deployments across numerous countries, supplying pipes for critical infrastructure that delivers reliability and performance. We are committed to providing not just a product, but a comprehensive and dependable piping solution.
Product Name | Ductile iron pipe |
Outside Diameter: 98mm-2702mm Inside Diameter: 80mm-2600mm Wall Thickness: 6mm-27.9mm Length: 6m, cut to 5.7m, or as required. | |
Grade | K9, K10, K11, K12，K9, K8, C25, C30, C40, etc. |
Standard | ISO2531, EN545, EN598, etc |
Surface | External bitumen coating, or as required. |
a). Portland cement mortar lining b). Sulphate Resistant cement mortar lining c). High-Aluminum cement mortar lining d). Fusion bonded epoxy coating e). Liquid epoxy painting f). Black bitumen painting | |
a). zinc+bitumen(70microns) painting b). Fusion bonded epoxy coating c). Zinc-aluminum alloy +liquid epoxy painting | |
Quality Control | 100% inspection + professional Lab test |
Certification | ISO, CE, BSI, WRAS,SGS,etc |
Package | Standard export package, or as required. |
Payment | T/T, L/C, Western Union, etc. |
Application | Water supply project, drainage, sewage, irrigation, water pipeline, etc. |
Our ISO-standard ductile iron pipes are engineered for superior underground performance. The exterior is protected by a robust polyurethane (PU) coating, providing exceptional resistance to corrosion, abrasion, and cathodic disbondment in even the most aggressive soils. This ensures a dramatically extended service life and significantly reduces long-term maintenance costs for municipal water and wastewater networks.
Internally, an advanced cement-mortar or epoxy liner creates a permanent barrier, safeguarding water quality by preventing tuberculation and maintaining high flow efficiency over decades. The inherent strength of ductile iron offers superior resistance to ground movement and heavy load-bearing pressure.
Combining these features results in a complete, reliable piping system that delivers unmatched durability, hydraulic performance, and cost-effectiveness for critical infrastructure projects worldwide, fully complying with international quality and safety standards.
Engineered for resilience, our PU-coated ductile iron pipes are the premier choice for demanding underground environments. They are ideally deployed in municipal potable water distribution and sewage systems, where their superior corrosion resistance ensures long-term integrity in aggressive soils. The robust construction also makes them perfect for industrial effluent disposal, mining dewatering applications, and pipeline installations beneath railways and roads with high load-bearing requirements.
The advanced internal liner is critical for protecting water quality in potable supply networks, preventing scaling and biofilm formation. This combination of external durability and internal purity is essential for major cross-country water transmission mains, urban infrastructure upgrades, and projects in areas with high water tables or contaminated ground. Their reliability guarantees the security of vital water resources.
From sprawling new city developments to the rehabilitation of aging networks, these ISO-compliant pipes provide a sustainable and leak-resistant solution. They are the trusted standard for ensuring operational safety and longevity in critical water and wastewater infrastructure across the globe.
This product comprises high-grade ductile iron pipes manufactured to stringent ISO standards, specifically engineered for long-term, reliable performance in buried applications. The core strength of the ductile iron substrate provides exceptional resistance to external loads and ground movement. Its primary innovation lies in the dual-protection system: an exterior Polyurethane (PU) coating and an advanced internal liner. The PU coating offers superior adhesion and exceptional resistance to cathodic disbondment, chemical attack, and mechanical abrasion from backfill materials, ensuring comprehensive external corrosion protection in even the most aggressive soils.
Internally, the pipe is safeguarded by an advanced liner, typically a high-quality cement-mortar or a smooth, inert epoxy. This liner is permanently bonded to the pipe wall, creating a durable barrier that maintains water quality. It effectively prevents tuberculation, minimizes scaling, and ensures excellent hydraulic efficiency with a consistently high C-factor throughout the pipeline's lifespan. This combination guarantees both the structural integrity of the pipe and the purity of the conveyed water, making it a complete system for potable water, wastewater, and various industrial fluids.
Together, these features create a robust and sustainable piping solution that meets global infrastructure demands. By integrating the proven strength of ductile iron with state-of-the-art protection technologies, this product delivers unmatched durability, significantly reduced lifecycle costs, and reliable service for critical water transmission and distribution projects worldwide, fully complying with international performance and safety standards.
CUSTOMERS & MARKET
Q: What's your qualification in this product ?
A: We have been engaged in this industry for decades with seasoned export team. All the product is strictly conformed to the international standard ISO2531:1998,EN545-2002 and other related standard.
Q: How long is your delivery time ?
A: Generally it is 5-10 days if the goods are in stock. or it is 20-30 days if the goods are not in stock, it is according to quantity.
Q: What's your terms of payment ?
A: 30% T/T in advance , balance before shipment or against L/C . And D/P , D/A ,L/C for free options.
Q: What's your trade terms ?
A: FOB , CIF , CFR as per client's requirements.
If you have any other questions , please feel free to contact us.
