| Type: | Ductile Iron Pipes |
|---|---|
| Usage: | Water Supply |
| Joint Type: | Flexible Joint |
| Section Shape: | Round |
| Certification: | ISO2531, EN545, ISO4179, ISO8179 |
| Shape: | Round |
| Customization: |
|---|
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Nominal
Size DN |
Minimum tensile
strength, Rm Mpa |
Minimum 0.2%
proof stress, Rp0.2 Mpa |
Minimum elongation
after fracture,A % |
Hardness
HB |
|
80-1000
|
≥420
|
≥300
|
≥10
|
≤230
|
|
1100-2600
|
≥7
|
|||
|
Note:
1. By agreement between manufacture and purchaser, the 0.2% proof stress (Rp0.2) may be measured. It shall be not less than: · 270 MPa when A≥12% for DN 40 to DN 1000 or A≥10% for DN >1000; · 300 MPa in other cases. 2. DN 40 to DN 1000, the minimum elongation after fracture shall be 7% for thickness classes over K12. |
||||
|
Nominal Size(DN)
|
Hydrostatic works test pressure (bar)
|
|
80-300
|
50
|
|
350-600
|
40
|
|
700-1000
|
32
|
|
1200-2000
|
25
|
|
2200-2600
|
18
|
|
External coatings
|
Internal coating
|
Coating of the joint area
|
|
-Metallic zinc (130-400g/m2)
-Zn-Al Alloy 85/15 -Black Bitumen coating -Red or Blue Epoxy coating |
-Cement lining
-Seal coat -PU coat |
- Epoxy coating;
- Polyurethane coating. |
Quality Control
TransportationTransporting:
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