| After-sales Service: | Bending,Welding,Cutting,Decoiling |
|---|---|
| Type: | Cast Iron Pipes |
| Usage: | Water Supply, Pressure Pipelines |
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| Standard: | ISO 2531 (Ductile iron pipes, fittings and accessories for pressure pipelines) |
| EN545 (Ductile iron pipes, fittings and accessories and their joints for water pipelines) | |
| EN598 (Ductile iron pipes, fittings, accessories and their joints for sewerage applications) | |
| Pipe class | K9, C40, C30, C25, etc. |
| Pipe joint | push-on joint(T-type), K-type, self-restrained joint |
| Effective length | 6m for bulk shipment;5.7m for container shipment. |
| Packing | DN100-DN300 in bundles; DN350-DN2600 in bulk ship |
| Internal lining | 1. Portland cement mortar lining |
| 2. Sulphate Resistant cement mortar lining | |
| 3. High-Aluminum cement mortar lining | |
| 4. Epoxy Resin Lining | |
| 5. Epoxy Ceramic Lining | |
| External Coating | 1. zinc+bitumen(70microns) painting |
| 2. Fusion bonded epoxy coating | |
| 3.Zinc-aluminum alloy +liquid epoxy painting | |
| Bitumen painting | ISO 8179-at least 70um |
| Gaskets type( ISO4633) | NBR rubber, natural rubber, SBR rubber, EPDM rubber ring |
| Size | DN 80 - 2,600 mm |
| Advantages | High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life time |
| inspection | Checked by automatic inspection equipment |
| Chemical composition (%): | C: 3.5 - 4.0;Si: 1.9 - 2.6;P: <0.06;Mn:0.15 - 0.45;S: <0.02 |
| Mechanical properties | Tensile strength: ≥420MPa |
| Yield strength: ≥300Mpa | |
| Hardness: ≤230HB | |
| Elongation%: DN80 - 1000 ≥10 DN1200 - 2200 ≥7 | |
| Process and testing: | Induction furnace and treated metallic (Chemical analysis of raw material, spheroidizing & Nodularity) |
| Casting (Visual check and weight check) | |
| Heat treatment (Micro structure) | |
| Hydrostatic test (Pressure test) | |
| Dimensional checks (Checking pipe length and joint, OD, wall thickness, appearance) | |
| Zinc spraying (Thickness testing) | |
| Lining and coating (100% visual check, thickness testing randomly) | |
| Marking and packing (100% visual check) | |
| pipe coating | pipe coating can be customized, such as, zinc-aluminum alloy, PU, etc. |
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