After-sales Service: | Tracking Services, Technical Guidance |
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Warranty: | 3year |
Type: | Ductile Iron Pipes |
Usage: | Water Supply, Gas Supply, Oil Pipe |
Joint Type: | Flexible Joint |
Section Shape: | Round |
Samples: |
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Customization: |
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Suppliers with verified business licenses
Metallic Zinc Coating
When metallic zinc spray is applied, the average mass of zinc per unit area shall not be less than 130g/m², ensuring robust protection.There is a local minimum requirement of 110 g/m². Customized zinc mass options are available upon request to meet specific needs.
Bitumen Coating
The mean thickness of the bitumen coating must be at least 70 μm, with a local minimum of 50 μm. We also offer bitumen coatings tailored to customer specifications.
Alternative Coating
Process and Testing Protocols:
1. Induction furnace and treated metal (includes chemical analysis of raw material, spheroidizing, and nodularity checks).
2. Casting process (involves visual inspection and weight verification).
3. Heat treatment (ensures appropriate microstructure).
4. Hydrostatic testing (pressure testing for strength evaluation).
5. Dimensional checks (verifies pipe length, joints, outer diameter, wall thickness, and overall appearance).
6. Zinc spraying (thickness testing for coating consistency).
7. Lining and coating (100% visual inspection with random thickness testing).
8. Marking and packing (100% visual inspection to ensure quality).
Project Case
Suppliers with verified business licenses