Features and Advantages
Superior mechanical propertiesSpherical graphite structure reduces stress concentration, resulting in significantly higher compressive and tensile strength for pipes than gray cast iron pipes, and even close to steel pipes.
Excellent corrosion resistanceCast iron itself is highly adaptable to corrosive environments such as acids and alkalis. With the addition of a lining made of cement or epoxy resin for corrosion protection, its lifespan can exceed 50 years.
Easy installation: Utilizes socket or flange connections for fast installation and excellent sealing at the joints, with a low risk of leakage.
Adaptable to complex terrainFlexible performance exceeds steel pipes, suitable for laying in complex terrains like mountains and rivers.
2. Main Application Fields
Municipal Water SupplyUrban tap water transmission, especially suitable for long-distance and large-diameter requirements.
Drainage systemRainwater and wastewater discharge, strong resistance to ground subsidence.
Gas TransmissionGas and other medium transmission, reliable sealing.
Industrial SectorCorrosive medium transportation for chemical plants, thermal power plants, etc.
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 | Excellent (especially after lining) | Corrosion-prone, requires anticorrosion 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 | Challenging terrain, preference for large bore sizes | High-pressure, high-precision applications | Small bore, temporary works |
4. Production Process and Standards
Centrifugal casting methodThrough high-speed rotation of the mold, iron water is evenly distributed to form a dense tube wall.
International StandardMeets standards such as ISO 2531, EN 545, ensuring pressure grades (e.g., K9, K12) align with size specifications.
5. Growth Prospects
With the advancement of urbanization and increased water quality requirements, the demand for ball mill cast iron pipes is growing in areas such as the renovation of old pipelines and the construction of sponge cities. Their environmental benefits (recyclable) and long-term cost advantages are becoming increasingly evident.
