Flanged Connection Corrosion-Proof Ductile Iron Pipe Fittings

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Flanged Connection Corrosion-Proof Ductile Iron Pipe Fittings

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Product Description

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Basic Information

Certification: ISO2531, EN545, EN598, AWWA C110

Material: Ductile Iron (Qt500-7, Qt450-10)

Customized: Available (OEM/ODM)

Delivery Time: 1 Month

MOQ: 33 Tons

Transport Package: Wooden Crates/Pallets

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Ductile Iron Pipe Fittings

High-Strength, Corrosion-Resistant Solutions for Pipeline Systems

Our ductile iron fittings are manufactured under strict ISO 2531/EN 545/EN 598/AWWA C110 standards, ensuring superior mechanical performance and longevity. Ideal for water supply, sewage systems, and industrial pipelines, these fittings combine the durability of cast iron with the flexibility of ductile iron technology.

Technical Specifications

Item	Details
Material	High-grade ductile iron (QT500-7, QT450-10)
Standards	ISO 2531, EN 545, EN 598, AWWA C110, GB/T 13295
Pressure Rating	PN10-PN25, Class K9/K10
Sizes Available	DN80-DN1200 (Custom sizes upon request)
Coatings	Zinc/epoxy internal/external coating, cement lining, bitumen painting
Connection Types	Flanged, push-on
Operating Temp.	-30°C to +120°C

Key Advantages

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Exceptional Strength: Higher tensile strength (≥500 MPa) and impact resistance than traditional cast iron.

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Corrosion Protection: Optional epoxy/zinc coatings for harsh environments (e.g., seawater, acidic soils).

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Leak-Free Performance: Precision-machined joints ensure tight sealing (tested to 1.5x working pressure).

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Cost-Effective: 30% lighter than gray iron fittings, reducing transport and installation costs.

Applications

Water & Wastewater: Municipal water supply, drainage, and treatment plants.
Industrial: Chemical processing, mining slurry pipelines, and fire protection.
Infrastructure: HVAC systems, underground conduits, and bridge drainage.

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Main Products Range

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Production Excellence

Operating with a total investment of 2 billion RMB, the facility utilizes twenty centrifugal casting units and automated finishing lines. Annual production capacity includes:

Ductile Iron Pipes: 500,000 tons (DN80mm-DN2600mm)
Cast Iron Drainage Pipes: 200,000 tons (DN50mm-DN300mm)
Ductile Iron Fittings: 200,000 tons (DN80mm-DN2600mm)

Anti-Corrosion Technology

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Zinc Coating: ISO 8179 standard using 99.99% pure zinc wire (130g/m²).

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Cement Lining: ISO 4179 standard using Portland cement 52.5 and quartz sand.

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Quality Assurance & Certifications

Our commitment to quality is reflected in our management systems: ISO 9001 (Quality), ISO 14001 (Environmental), and OHSAS 18001 (Occupational Health & Safety).

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Packaging & Shipping

Packaging: Standard wooden crates or pallets with anti-rust protection for export.
Logistics: Worldwide ocean and land freight support.

Frequently Asked Questions

Q1: Why choose Ductile Iron over grey iron? A: Ductile iron offers over 3x the tensile strength (≥420MPa) and significantly higher impact resistance and elongation (≥10%), making it much more durable for high-pressure systems.

Q2: How long is the lifespan of these fittings? A: With standard zinc and bitumen or epoxy coatings, these fittings can achieve a verified lifespan of 50 to 100 years even in harsh environments.

Q3: How do I select the right joint type? A: T-Type is best for high-pressure systems; K-Type is ideal for seismic zones; and Flanged joints are used for valve or pump connections.

Q4: Do small cracks in the cement lining affect performance? A: Small cracks (≤0.8mm) are acceptable per ISO 4179. They are self-healing due to CaCO3 deposition when water flows through the system.

Q5: What certifications do your products hold? A: Our products comply with ISO 2531, EN 545, and GB/T 13295-2019 standards, and our facility is ISO 9001, ISO 14001, and OHSAS 18001 certified.

Q6: What post-installation tests are required? A: Standard procedures include a 0.3MPa air leak test, alignment verification, and water quality immersion tests for potable systems.