seamless weld PE-AL-PE multilayer pipe for natural gas system
1,certificates:Iso,ce
2,size:DN1216-3240
3,used for gas transportation.
4,colour:yellow
Multilayer pipe is five-layer pipe combines the advantages of metal and plastic pipe, while eliminating the disadvantages of both material.
-classified according to application: Cold water pipe, hot water /heating pipe, gas pipe.
-classified according to welding method: Overlap-welded and butt-welded.
Technical Structure
specifications and package:
Gas pipe
| | HDPE/AL/HDPE |
| Specification | 1014 | 1216 | 1418 | 1620 | 2025 | 2026 | 2632 | 3240 |
| packing Specification(m/roll) | 100
200 | 100
200 | 100 | 100 | 100 50 | 100 50 | 50 | 50 |
| Main Characteristics |
| Thermal conductivity | 0.45w/(m.k.) |
| Coefficient of heat expansion | 0.025mm/(m.k) |
| Bend radius | ≥5D(D means outside diameter) |
| Oxygen-permeability | 0 |
| Coefficient of heat roughness | 0.0004mm |
| other | Static-free,longevity |
| Following is the condition we must go by when we use it: |
| Specification | Minimum | Min pipe | long-term | working temperature | working pressure |
| burst pressure | ring strength | hydrostatic strength | °C |
| mm | (Mpa) | (N) | (Mpa) | cold pipe | hot pipe | (Mpa) |
| 1216 | 7 | 2300 | 2.7 | -40~60 | -40~95 | 1.25 |
| 1418 | 6 | 2300 | 2.7 |
| 1620 | 6 | 2300 | 2.7 |
| 2025 | 5 | 2500 | 2.7 |
| 2632 | 4 | 2500 | 2.3 |
| 3240 | 4 | 3500 | 2.1 |
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