Ductile Iron Pipe
Ductile Iron Pipe (DIP) is a high-strength, durable, and corrosion-resistant piping solution widely used in municipal water supply, wastewater systems, and industrial pipeline projects. Manufactured with a spheroidal graphite structure, ductile iron pipe offers superior tensile strength and flexibility compared with traditional cast iron, ensuring long-term reliability and safety for critical infrastructure.
Since 1955, ductile iron pipes have been the preferred choice for modern water supply and wastewater treatment systems. They offer exceptional strength, durability, and reliability for transporting raw water, drinking water, wastewater, slurry, and process chemicals.
Ductile iron pipes are designed and manufactured to the industry's most stringent standards, effectively withstanding damage during transportation and handling. Once installed, they can withstand the most demanding operational conditions, including water hammer, frozen ground, deep trenches, high groundwater levels, high-traffic areas, river crossings, pipe supports, rocky channels, and moving, expanding, and unstable soils.
Our ductile iron pipes are manufactured and tested in accordance with internationally recognized standards to meet diverse project requirements:
ISO 2531 / EN 545 / EN 598 – Ductile iron pipes for water and wastewater
ANSI / AWWA C151 / A21.51 – Ductile iron pipe, centrifugally cast
ANSI / AWWA C104 / A21.4 – Cement-mortar lining for ductile iron pipe
ASTM and AWWA standards for joints, fittings, and accessories
To accommodate various installation conditions and pressure requirements, multiple joint systems are available:
Push-On (TYTON® Type) Joints: Fast installation with reliable sealing performance.
Restrained Joints: Suitable for high-pressure pipelines and areas with axial loads.
Mechanical Joints: Flexible and widely used in municipal water systems.
Flanged Joints: Ideal for pump stations, valves, and equipment connections.
1. High Elastic Deformation and Crack Resistance: Ductile iron structure offers excellent flexibility and crack resistance, making it highly durable under various conditions.
2. Strength Under Loads: Ductile iron pipes maintain their integrity and strength even under significant loads, ensuring long-term reliability.
3. Pressure Resistance: These pipes can withstand high pressure, making them ideal for various industrial and commercial applications.
4. Corrosion Resistance: Ductile iron is highly resistant to corrosion, extending the lifespan of the pipes and reducing maintenance costs.
5. Push-Fit Joint System: The push-fit joint system simplifies installation and ensures a secure and leak-free connection.
6. Maintenance-Free: Ductile iron pipe is exceptionally easy and safe to install by trained contractors. DIP requires no complicated laying schedules or complicated line-and-grade diagrams. It’s good for use in a wide range of conditions, and it maintains its structural integrity even when it’s subject to direct tapping in straight lines. DIP also resists damage during installation, transport and handling, and it’s virtually maintenance-free once installed.
7. Easy to Process: Ductile iron is also readily machinable, an important requirement in any pipe that must be drilled, tapped or cut.
Ductile iron pipes are trusted worldwide for a wide range of infrastructure projects, including:
Municipal drinking water transmission and distribution
Wastewater and sewage systems
Industrial water supply and cooling systems
Water treatment plants and pumping stations
Underground pipelines crossing roads, railways, and rivers
Ductile iron pipe offers higher mechanical strength, better impact resistance, and longer service life, making it suitable for high-load and high-pressure applications.
Yes, ductile iron pipes are widely used for potable water, wastewater, and sewage systems when manufactured according to appropriate standards.
Joint selection depends on pressure, installation environment, and project design. Push-on joints are common for standard pipelines, while restrained or flanged joints are used for higher pressure or special conditions.
With advanced manufacturing technology and strict quality control, we supply a full range of ductile iron pipes from DN80 to DN2600. Our products comply with international standards and are widely exported for municipal and industrial projects worldwide. We provide not only reliable products but also technical support and project-based solutions to help ensure long-term pipeline performance.
Midas is a leading China ductile iron pipe manufacturers and suppliers. We provides DI pipes with diameters ranging from DN80 to DN2600, which comply with European EN598, EN545 and international ISO2531 standards, ensuring product quality and reliability, suitable for a variety of demanding application environments. Warmly welcome you to buy high quality ductile iron pipe at competitive price from our factory. Contact us for specifications.
All pipes have metallized zinc coating, pipe coating can also be customized
Available pipe wall thickness: K7, K8, K9, C40, C30, C25, etc.
Available in a variety of external coatings.
Meets all European (EN) and International (ISO) standards.
Acclaimed by contractors, utility companies and manufacturers for its superior quality.
Midas' ductile iron pipe is a push-fit connection, known for its rugged design, ease of use and waterproofness. The pipe sizes range from DN80-DN2600.
Contact us today to learn about our pipeline and place your order!
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