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- Inner: PE - Middle: Steel mesh Adhesive - Outer:PE |
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| SRP APPERANCE |
- FIRM STEEL FRAME OF THE PIPE, CONNECTED BY CONTACT WELDING AT ANY POINT OF CROSSING
- ROSS SECTION OF THE PIPE |
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| SRP CHARACTER |
- Size: dn90~dn500 - Pressure:1.0~3.5MPa - Temperature: -20℃-40℃ - Apply: Water, Gas, Chemical, Mine,
Power station, Sea water - Pressure testing |
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| CONNECTION |
SRP: A, Electrofussion; B, Electrofussion flange; C, Steel/Plastic connection; (Apply Butt-welding plus
electrofussion fittings) |
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| PRODUCTION CAPACITY |
| The production capacity of the GS/PE-G-400 reinforced pipe production line |
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| SPECIFICATION |
- Reinforced pipe 110,160,250,315,355 |
| PRODUCTION SPEED |
- Reinforced pipe 0.8 m/min ( Φ 160) 0.25 m/min ( Φ 355) |
| ANNUAL OUTPUT |
- 80km/y(Reinforced pipe)
- 3000T/y(PE pipe) |
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| STEEL WIRE SPECIFICATION |
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| Surface processing
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- Plating copper - zinc alloy, cooper and zinc; phosphorus |
| Plating thickness
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- 0.14 - 0.3 um |
| Tensile Strength
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- ≥ 2000 MPa |
| Elongation rate |
- ≤ 2% |
| Surface treatment |
- Degrease |
| Bending required |
- non-permissible camber <30mm |
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DWE Pipe's HDPE pipes conform to the international standard ISO4427, to the European standard draft, prEn 12201 and/or relevant national standards. Material classification for PE pipesDesignation of materialMRS at 50 years and 20℃(MPa)Hydrostatic design stress, σs(MPa)PE 100108PE 8085.0/6.3The piper are designated by material type(e.g.PE 80) conforming to the applicable level of minimum required strength(MRS) as specified below:
The wall thickness of the pipe will thus be determined by the chosen hydrostatic design stress for the PE material type and the pressure class of the pipe. High density Polyethylene(HD-PE) pipes have been used for more than 20 years. The experience shows that HD-PE pipes offer an optimal solution to most pipe problems. HD-PE pipes have outstanding advantages over conventional materials, such as
● corrosion resistance
● flexibility
● non toxicity
● impact strength
● long service life
● weld ability
● light weight
● abrasion resistance |
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| Material classification for PE Pipes |
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| Material classification for PE pipes |
Designation of material |
MRS at 50 years & 20℃(MPa) |
Hydrostatic design stress, σ s (MPa) |
| PE 100 |
10 |
8 |
| PE 80 |
8 |
5.0/6.3 |
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| Typical data for PE |
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| Typical data for PE |
Design Stress |
Mpa |
5.0/6.3 |
8.0 |
| Density(black compound) |
kg/㎥ |
945 - 956 |
957 - 961 |
| Melt flow rate(190 ℃/5kg) |
g/10min |
0.4 - 0.7 |
0.2 - 0.4 |
| Tensile Strength at yield |
MPa |
18 - 23 |
23 - 25 |
| Elongation at break |
% |
> 600 |
> 600 |
| Brittleness temperature |
℃ |
< -70 |
< -70 |
| Flexural Modules E |
MPa |
650 - 1000 |
1000 - 1200 |
| Charpy impact strength |
kj/㎡ |
No breaks |
No breaks |
| Linear expansion coefficient |
㎜/m ℃ |
0.17 |
0.17 |
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