DUCTILE IRON PIPE (DIP)
Product Description
Ductile Iron Pipe (DIP) - High-Strength, Corrosion-Resistant Water Supply Solution
| Ductile Iron Pipe for Water Supply |
Ductile Iron Pipe for Sewer Systems |
Product Overview
Ductile Iron Pipe (DIP) is a high-strength, corrosion-resistant, and flexible water pipeline widely used in municipal water supply, hydraulic engineering, firefighting systems, and industrial water transportation. Manufactured from premium ductile iron with advanced casting technology and anti-corrosion treatment, it ensures long-term, stable performance even under high pressure and harsh environments.
Key Advantages
High Strength & Impact Resistance - Near-steel strength with excellent pressure and shock resistance, ideal for high-pressure water systems.
Superior Corrosion Resistance - Features cement mortar lining + zinc layer + asphalt coating (or epoxy coating) for enhanced durability in corrosive soils and water.
Flexible & Seismic-Resistant - Spheroidal graphite structure provides ductility, adapting to ground settlement and earthquakes while minimizing pipe bursts.
Long Lifespan & Low Maintenance - Service life of 50-100 years, significantly reducing long-term costs.
Eco-Friendly & Safe - Complies with ISO 2531, EN 545, GB/T 13295, and AWWA C151 standards; smooth inner surface ensures clean water delivery.
Easy Installation - T/K-type push-on joints or flanged connections for quick, leak-proof assembly.
Technical Specifications
| Parameter |
Specification |
| Material |
Ductile Iron (QT500-7, QT450-10) |
| Diameter Range |
DN80 - DN2600 |
| Working Pressure |
PN10 - PN25 (customizable for higher pressures) |
| Standards |
ISO 2531 / EN 545 / GB/T 13295 / AWWA C151 |
| Internal Lining |
Cement Mortar or Epoxy Coating |
| External Coating |
Zinc + Bitumen or Polyurethane (PU) Coating |
| Joint Types |
T/K-Type Socket, Flanged, Restrained (Lock-Joint) |
Applications
Municipal Water Supply - Primary/secondary distribution networks
Industrial Water - Power plants, chemical facilities, mining
Fire Protection - High-pressure firefighting pipelines
Hydraulic Projects - Reservoirs, water diversion, irrigation
Power Industry - Cooling water, ash slurry transport
Main Products
About Us
Shanxi Chenhui Snowall Casting Group Co., Ltd.
Shanxi Chenhui Snowall Casting Group Co., Ltd. is a large integrated corporation specializing in mining, ore processing, sintering, iron smelting, and casting. With a total investment of 2 billion RMB, the company operates three smelting furnaces, twenty centrifugal casting units, five annealing furnaces, and five automated finishing lines. Its annual production capacity exceeds 1 million tons, including:
Ductile Iron Pipes: 500,000 tons (DN80mm-DN2600mm)
Flexible Cast Iron Drainage Pipes: 200,000 tons (DN50mm-DN300mm)
Ductile Iron Fittings: 200,000 tons (DN80mm-DN2600mm)
Ductile Iron Manhole Covers: 100,000 tons
Location & Logistics
Strategically located in southeastern Shanxi Province, the company serves as a vital gateway connecting Shanxi to Central China. It enjoys excellent transportation access:
Adjacent to the Taiyuan-Jiaozuo Railway, linking major rail lines like Tongpu, Shitai, and Jingguang.
Near the intersection of Jincheng-Jiaozuo, Taiyuan-Macao, and Jincheng-Houma Highways, with close proximity to National Highway 207.
Only 3 km from the nearest railway station, enabling efficient distribution via rail, expressway, and road networks.
Quality Assurance & Certifications
The company has invested heavily in a state-of-the-art casting product testing center, equipped with:
Metallographic, spectroscopic, physical, and high-temperature testing labs.
Advanced Production & Anti-Corrosion Technology
Zinc Coating: Adheres to ISO 8179, using 99.99% pure zinc wire for a 130g/m² coating (100-year lifespan verified by national labs).
Cement Lining: Complies with ISO 4179, using Portland cement 52.5, quartz sand, and water, cured via steam for 8 hours.
External Coatings: Options include tar asphalt, epoxy asphalt, epoxy resin, or polyurethane (eco-friendly, double-layer anti-corrosion).
Product Advantages
Mechanical Properties: High impact resistance, pressure tolerance, corrosion resistance, elongation, and easy installation.
Global Reach: Exported to 100+ countries (Middle East, Southeast Asia, South America), acclaimed for quality and after-sales service.
Corporate Vision
"Continuous improvement is our principle; customer satisfaction is our eternal pursuit." Committed to green manufacturing and low-carbon development, the company seeks global partnerships for mutual success.
Certifications
Awards & Recognition
"Shanxi Famous Brand Product" (Shanxi Brand Recommendation Committee)
"AAA Quality Credit Enterprise" (Shanxi Bureau of Quality & Technical Supervision)
"AAA Quality Integrity Unit" & "Consumer-Trusted Brand" (China Quality Integrity Promotion Association)
"AAA China Quality Credit Enterprise" (China Quality Credit Certification Center)
"Key Recommended Industry Leader in Zhejiang" (Zhejiang Industrial Economic Federation)
Compliance with GB/T 13295-2019 and ISO 2531 standards.
Certifications: ISO 9001 (Quality Management), ISO 14001 (Environmental Management), OHSAS 18001 (Occupational Health & Safety).
Packaging & Shipping
Packaging - Wooden/steel pallets with end caps for transport protection.
Logistics - Ocean/land freight; worldwide export supported.
FAQ
Q1:Why Choose Our DIP?
A:
Strict QC - Full-process inspection from raw materials to finished pipes.
Advanced Production - Centrifugal casting ensures uniform wall thickness and strength.
Custom Solutions - Tailored pressure ratings, coatings, and sizes available.
Global Certifications - ISO 9001, CE, WRAS, NSF compliant; exported to Europe, Middle East, Southeast Asia, etc.
Q2: What are the advantages vs. other pipe materials?
A:
High Strength: Tensile strength ≥420MPa (3×grey iron)
Corrosion Resistance: Zn+bitumen/epoxy coating (50-100yr lifespan)
Flexibility: Elongation ≥10% for ground movement adaptation
Easy Installation: Push-on/T-type/K-type joints for efficiency
Q3: How to select joint types?
A:
T-Type: High-pressure systems (PN10-PN25)
K-Type: Seismic-prone areas
Flanged: Valve/pump connections
Restrained Joints: No thrust block required
Q4: Do cracks in cement lining affect performance?
A:
Acceptable: ≤0.8mm per ISO 4179
Self-healing: CaCO3 deposition seals cracks during water flow
Q5: How to repair damaged external coating?
A:
Clean area (Sa2.5 blast)
Apply epoxy coal-tar paint (1.2×original thickness)
PU tape reinforcement (severe corrosion zones)
Q6: Post-installation tests required?
A:
Leakage: 0.3MPa air test (15min stabilization)
Alignment: Max. 3° deflection (DN≤600mm)
Water Quality: 48hr immersion test per GB/T 17219
Contact us for quotes and technical support!
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