High-Quality Ductile Iron Pipes DN80–DN2600 | Certified Global Supplier

Durable ductile iron pipes DN80–DN2600 mm for water supply, sewage, and heating. ISO, TUV, BV, SGS c

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Product Details

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Our Strength & Quality Commitment

Trusted Worldwide, Certified Excellence
Our ductile iron pipes are recognized globally for quality and reliability, certified by BV (France), SGS (Switzerland), and TÜV (Germany). These certifications reflect the industry-leading standards we maintain in production and service.

Decades of Expertise
With over 60 years of casting experience, our manufacturing partners were among the first in China to produce according to ISO 2531 international standards, guaranteeing a rich heritage of technical expertise and consistency.

Global Production Capacity
As one of the world’s largest single-entity ductile iron pipe manufacturers, we maintain stable annual output to support projects of any scale, ensuring timely delivery and reliable supply.

Authoritative Quality Control
Our production adheres to ISO 9001 quality management standards, with rigorous inspections for coatings, mechanical performance, and joint reliability, exceeding international benchmarks.

Core Technical Specifications

Item	Specification
Standard	ISO 2531, EN 545, GB/T 13295, ISO 8179, ISO 16132
Diameter Range	DN80–DN2600 mm
Wall Thickness	K Class, C Class
Length	6 m standard / Customizable
Internal Lining	Cement Mortar, Sulfate-Resistant Cement, Epoxy, Polyurethane, Ceramic Epoxy, PE
External Coating	Zinc + Asphalt, Polyethylene Sleeve, Polyurethane Coating, Aluminum Paint
Joint Types	T-Type, GMT-Type, K-Type, TF Restrained Joint, Tiegu Restrained Joint
Installation Methods	Trench, Pipe Jacking, Sunk Pipe, Horizontal Directional Drilling
Product Series	Pipes, Fittings, Accessories
Services	Pre-Sales & After-Sales Support
Applications	Water Supply, Sewage, Irrigation, Reclaimed Water, Heating Systems

Superior Mechanical Performance

Our ductile iron pipes not only meet but exceed international standards, offering exceptional durability in harsh environments:

Performance Metric	Data
Tensile Strength	≥ 420 MPa
Flexural Strength	≥ 590 MPa
Elongation	DN80–1000 ≥ 10% / DN1100–1600 ≥ 7%
Modulus of Elasticity	≈ 17 × 10⁴ N/mm²
Thermal Conductivity	42

Joints & Anti-Corrosion System

Flexible & Reliable Joint Solutions
We provide T-Type Flexible Joints for standard installation and Self-Anchored Joints for steep slopes or subsiding ground, eliminating the need for concrete thrust blocks.

Customizable Corrosion Protection

External Coatings: Zinc spray ≥130 g/m² following ISO 8179 ensures excellent soil corrosion resistance.
Internal Linings: Options include Portland Cement, Sulfate-Resistant Cement, Epoxy Resin, and Polyurethane, customized to water quality and soil conditions.

Corrosion Protection Guide

Water/Soil Type	Recommended Internal Lining	Recommended External Coating
Raw / Drinking Water	Portland Cement, Sulfate-Resistant Cement, PE Lining	Zinc + Finishing Coating
Soft / Potable Water	Cement + Epoxy Seal, Epoxy Ceramic, Polyurethane	Zinc + Finishing Coating
Municipal Sewage	High-Alumina Cement, Epoxy Ceramic, Polyurethane	Standard Coating + PE Sleeve
Industrial Wastewater	Polyurethane Lining & Coating	Polyurethane Coating
Normal / Moderately / Strongly Corrosive Soil	Corresponding internal lining	Standard/PE/PU External Coating

Quality Assurance & Flexibility

Every pipe undergoes hydrostatic testing, coating inspection, and mechanical performance evaluation before delivery.
We support both standard and customized production, enabling fast response to diverse project requirements.

Global Supply & Trade Support

Flexible Supply Chain
We combine high-quality products with a robust supplier network, offering cost-effective solutions while meeting international standards.

Professional Export Service
FOB/CIF pricing, shipping assistance, customs clearance, and inspection support ensure timely and reliable delivery to any global port.