Ductile Iron Pipe Export ISO2531 & EN545

Overview

1. Ductile cast iron Pipe are mainly used for transferring drinkable water, waste water and for irrigation.
2. Standard: ISO2531, EN545, EN598
3. Coating: Metallic zinc spray with Bituminous Coating (Outside) Cement mortar lining (Inside). Epoxy coating available upon request.
4. Available joint method: T type; Self-anchor; Flange
5. Material: Ductile Iron
Product ranging from: 80mm- 2600mm

A DN100 ductile iron pipe is a nominal diameter 100 mm pipe widely used in municipal water supply, sewage systems, fire protection pipelines, and industrial fluid transport. Known for its high strength, corrosion resistance, and long service life, DN100 ductile iron pipe is one of the most common sizes used in urban distribution networks and infrastructure projects.

Manufactured according to international standards such as ISO 2531, EN 545, EN 598, and AWWA C151, DN100 pipes provide reliable performance under both internal pressure and external load conditions.

What Does DN100 Mean?

DN100 stands for Nominal Diameter 100 mm, which refers to the approximate internal diameter of the pipe.

Key conversions:

• DN100 = 100 mm nominal diameter

• Equivalent inch size ≈ 4 inches

• Commonly used for branch pipelines and secondary distribution systems

DN100 pipes are ideal where moderate flow capacity and high mechanical strength are required.

DN100 Ductile Iron Pipe Specifications

Typical specifications vary depending on the wall thickness class (K7, K8, K9, etc.).

Standard Technical Parameters

Specifications may vary slightly depending on manufacturer and standard.

Pressure Rating and Strength

DN100 ductile iron pipes are designed to withstand high internal pressure and external loads.

Typical performance:

• Working pressure: up to 16–25 bar (depending on class)

• Test pressure: higher according to ISO/EN standards

• Tensile strength: ≥ 420 MPa

• Yield strength: ≥ 300 MPa

This makes them suitable for pressurized water distribution systems.

Internal Lining Options

Internal lining protects the pipe from corrosion and ensures water quality.

Common options include:

Cement mortar lining (standard)

• Suitable for potable water

• Prevents corrosion

• Long service life

Epoxy lining

• Used in industrial pipelines

• Excellent chemical resistance

Sulfate-resistant cement lining

• Ideal for aggressive soil or wastewater

External Coating Options

External protection is essential for underground pipelines.

Available coatings:

• Zinc coating + bitumen finishing layer (standard)

• Zinc-aluminum alloy coating

• Fusion bonded epoxy (FBE)

• Polyethylene sleeve protection

• Polyurethane coating for highly corrosive environments

These coatings significantly extend pipeline lifespan.

Common Applications of DN100 Ductile Iron Pipe

Municipal Water Supply

DN100 is widely used in urban water distribution networks.

Typical uses:

• Secondary water supply lines

• Residential areas

• Commercial building connections

Fire Protection Systems

DN100 pipes are commonly used in:

• Fire hydrant supply lines

• Fire sprinkler systems

• Industrial fire protection networks

Their strength ensures reliable performance during emergencies.

Wastewater and Sewage Systems

With proper lining, DN100 pipes can transport wastewater safely.

Used in:

• Sewage transport lines

• Treatment plant pipelines

Industrial Pipelines

Suitable for transporting:

• Cooling water

• Industrial fluids

• Process water

Advantages of DN100 Ductile Iron Pipe

High Mechanical Strength

Ductile iron has superior strength compared to PVC and HDPE, making it ideal for underground installation.

Long Service Life

Service life can exceed 50–100 years with proper coating and installation.

Excellent Corrosion Resistance

Protective linings and coatings prevent internal and external corrosion.

Leak-Free Joint System

Push-on rubber gasket joints provide excellent sealing and easy installation.

Strong Load-Bearing Capacity

Suitable for roads, highways, and heavy-traffic areas.

Low Maintenance Cost

Durability reduces repair and replacement expenses.

DN100 Ductile Iron Pipe Dimensions (Example: K9 Class)

Always confirm exact dimensions with the supplier.

Joint Types Available

Push-On Joint (Tyton)

Most widely used.

Benefits:

• Fast installation

• Flexible movement

• Reliable sealing

Flanged Joint

Used for:

• Pump stations

• Valve connections

Mechanical Joint

Ideal for maintenance and repair applications.

DN100 Ductile Iron Pipe vs PVC Pipe

Ductile iron is preferred for critical infrastructure.

What to Consider When Buying DN100 Ductile Iron Pipe

Important factors include:

Standards compliance
ISO 2531, EN 545, EN 598, or AWWA standards

Wall thickness class
K7 for standard use
K9 for higher pressure systems

Coating requirements
Select based on soil and environmental conditions

Joint type compatibility

Supplier quality certification

Why DN100 Ductile Iron Pipe Is Widely Used Worldwide

DN100 ductile iron pipe provides the ideal combination of strength, durability, and reliability. It is suitable for municipal infrastructure, fire protection systems, and industrial pipelines. Its long lifespan and low maintenance requirements make it a cost-effective solution for engineers, contractors, and distributors.