Flanged Ductile Pipe

Flanged Ductile Pipe is manufactured from premium spheroidal graphite cast iron and designed for secure bolted connections in water supply, wastewater treatment, industrial process piping, and pumping stations. The flanged connection provides excellent sealing performance, convenient installation, and simplified maintenance while meeting international quality standards for long-term infrastructure projects.

High-strength flanged connection system

Flanged ductile iron pipe provides a rigid and stable connection structure, ensuring zero displacement under pressure fluctuations. It is especially suitable for pump stations, valve chambers, and above-ground pipeline systems requiring secure mechanical joints.

Precision flange machining for perfect sealing

Each flange end is machined with high precision to ensure perfect alignment and tight sealing performance. Combined with high-quality rubber gaskets, the system significantly reduces leakage risk and improves long-term reliability.

 Excellent structural load resistance

Manufactured using ductile iron with spheroidal graphite structure, the pipe offers outstanding tensile strength and impact resistance. It performs reliably under internal pressure and external mechanical loads.

Corrosion protection system for long service life

Each pipe is protected with multi-layer anti-corrosion coatings, including zinc layer + bituminous or epoxy finishing. This ensures stable performance in both underground and exposed installation environments.

Easy installation and maintenance

Flanged connection design allows for quick assembly and disassembly without specialized welding equipment. This significantly reduces installation time and simplifies maintenance or system modification.

Suitable for complex engineering systems

Flanged ductile iron pipes are widely used in systems requiring frequent inspection or equipment connection, such as pump rooms, water treatment plants, and industrial process pipelines.

Manufacturer direct supply with customization

We provide OEM and customized production services including flange standards, pipe length, coating systems, and pressure ratings to meet global engineering requirements.

Media Compatibility:

Suitable for:

Clean water
Industrial water
Cooling water
Treated water
Low-corrosive liquids

Designed for both pressure and gravity flow systems depending on project design.

Standards:

Manufactured according to international standards:

ISO 2531
EN 545
EN 598
ISO 7005-2
EN 1092-2
ANSI B16.5 (optional)

Custom engineering standards and third-party inspection can be supported.

We provide complete system support for flanged pipeline installation:

Standard Accessories:
Flange gaskets (EPDM / NBR)
Bolts & nuts sets
Flange adapters
Pipe fittings (elbows, tees, reducers)
Rubber joint connectors

Optional Configurations:
Epoxy internal coating upgrade
Zinc-aluminum external coating
Heavy-duty flange reinforcement
Custom flange drilling standards
OEM logo marking
Export wooden crate packaging
Pre-assembled pipeline sections

Each flanged ductile iron pipe undergoes strict quality control before shipment.

Quality Inspection Includes:
Chemical composition testing
Mechanical strength testing
Dimensional accuracy inspection
Flange face flatness check
Coating thickness measurement

Performance Tests:
Hydrostatic pressure test
Leakage test
Flange sealing performance test
Joint alignment verification

Documentation:
Mill Test Certificate (MTC)
Quality inspection report
Hydro test report
Third-party inspection (SGS / BV / TUV available)

Factory inspection is welcome before shipment.