Features and Advantages
Strong mechanical propertiesSpherical graphite structure reduces stress concentration, resulting in significantly higher compressive and tensile strength for pipes compared to gray cast iron pipes, even nearing that of steel pipes.
Excellent corrosion resistanceCast iron itself is highly adaptable to corrosive environments like acids and alkalis. With the addition of corrosion-resistant linings such as cement or epoxy resin, its lifespan can exceed 50 years.
Easy installation: Features socket or flange connections for quick installation and excellent sealing at the joints, minimizing the risk of water leakage.
Adaptable to complex terrainBendable performance exceeds that of steel pipes, suitable for laying in complex terrains such as mountains and rivers.
2. Main Application Fields
Municipal Water SupplyCity tap water transportation, especially suitable for long-distance and large-diameter requirements.
Drainage systemRain and wastewater discharge, strong resistance to ground subsidence.
Gas TransmissionGas and other medium transmission, reliable sealing.
Industrial SectorCorrosive medium transportation for chemical plants and thermal power plants.
3. Compared to other piping materials
| Type | Ball Mill Cast Iron Pipe | Steel Pipe | Plastic tubes (e.g., PE) |
|---|---|---|---|
| Strength | High (close to steel pipe) | High | Lower |
| Corrosion resistance | Superior (especially after lining) | Rust-prone, requires corrosion treatment | High corrosion resistance |
| Service Life | Long-term (50 years or more) | Medium (Maintenance Required) | Short (20-30 years) |
| Cost | Initial investment is high, with low long-term maintenance. | Low initial investment, high maintenance cost | Low initial investment, frequent replacement |
| Applicability | Complex terrain, preference for large bore | High-pressure, high-precision applications | Small bore, temporary works |
4. Production Process and Standards
Centrifugal casting methodThe iron water is evenly distributed and forms a dense tube wall through high-speed rotation of the mold.
International StandardsMeets ISO 2531, EN 545, and other standards, ensuring pressure class (e.g., K9, K12) complies with size specifications.
5. Future Prospects
With urbanization advancing and water quality requirements increasing, there's a growing demand for ball mill cast iron pipes in areas such as the renovation of old pipeline networks and sponge city construction. Their environmental benefits (recyclability) and long-term cost advantages are becoming increasingly apparent.
