China Black Ductile Iron Pipe Manufacturer MIDAS Supplies Ductile Iron Pipe, According to ISO 2531, DN80-DN2600, K7、K8、K9、C40、C30、C25, T Type Joint...
Black Ductile Iron Pipes with ISO 2531 T-Type Joint are durable and corrosion-resistant, made from high-strength ductile iron for long-term performance. The T-type joint ensures a secure and leak-proof connection, making installation efficient and reliable. These pipes are widely used in water supply systems, sewage networks, and industrial applications due to their excellent tensile strength, impact resistance, and adaptability to high-pressure environments.
Material | Ductile Cast Iron |
Type | T-Type(push-on joint) |
Standard | ISO2531 |
Size | DN80- DN2600 |
Classs | K7, K8, K9, C40, C30, C25, etc |
Length | 6m, 5.7m |
Internal Coating | 1. Portland cement mortar lining |
2. Sulphate Resistant cement mortar lining | |
3. High-Aluminum cement mortar lining | |
4. Epoxy Resin Lining | |
5. Epoxy Ceramic Lining | |
External Coating | Zinc+bitumen(70microns) painting |
Rubber Gasket | NBR rubber, SBR rubber or EPDM rubber ring as per ISO4633 |
Application | Potable Water / Drinking Water |
Packing | DN100-DN300 in bundles; DN350-DN2600 in bulk ship |
Note | The pipe coating can be customized, such as, zinc-aluminum alloy, PU, etc. |
Below is the comparison between ISO 2531, EN 545, and EN 598 standards for Ductile Iron Pipes:
Standard Scope: International standard for ductile iron pipes used in water and wastewater systems.
Key Features:
Focuses on the design, manufacturing, and acceptance criteria of ductile iron pipes.
Applicable to both potable water and wastewater systems.
Emphasizes quality assurance for international markets.
Standard Scope: European standard for ductile iron pipes used in potable water supply systems.
Key Features:
Specifically applies to pipes used for drinking water supply.
Emphasizes corrosion resistance and coatings safe for potable water.
Ensures long-term reliability and compliance with European water safety standards.
Standard Scope: European standard for ductile iron pipes used in wastewater and drainage systems.
Key Features:
Focuses on pipes for sewage, stormwater, and drainage applications.
Emphasizes sealing requirements and corrosion resistance for wastewater environments.
Ensures durability and leak resistance in sewage systems.
| Feature | ISO 2531 | EN 545 | EN 598 |
|---|---|---|---|
| Application Area | Water and wastewater systems | Potable water supply systems | Wastewater and drainage systems |
| Region | International standard | European standard | European standard |
| Pipe Function | General water and wastewater use | Mainly used in potable water | Primarily for sewage/drainage |
| Corrosion Resistance | Focuses on overall corrosion resistance | For potable water systems | For sewage applications |
| Coating Requirements | Optional based on application | Coatings suitable for drinking water | Coatings for sewage systems |
| Pipe Connections | Various connection methods | Sealing and long-term reliability | Sealing and durability for wastewater |
ISO 2531 is more generalized for international applications, suitable for both water and wastewater systems. EN 545 is specifically designed for potable water supply systems, with a focus on drinking water safety and long-term reliability. EN 598 focuses on wastewater and drainage systems, particularly on sealing and corrosion resistance in sewage applications. When selecting the pipe standard, it is essential to consider the specific application area, regional standards, and the required performance characteristics.
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