PE-AL-PE Gas Pipe
Yellow-jacketed PE-AL-PE pipe for low-pressure gas lines, ≤ 0.4 MPa.
Overview
PE-AL-PE Gas Pipe
Five-layer pipe with high-density polyethylene inner and outer layers and an overlap-welded aluminium core. The yellow outer layer identifies gas lines. Designed with reference to GB/T 18997.1 (gas type) and ISO 17484 for indoor low-pressure gas distribution.
- Outer layer · HDPEProtects the pipe and carries the marking and colour.
- Adhesive layerBonds plastic to aluminium so the layers never separate.
- Aluminium layerBlocks oxygen, holds the bent shape and takes the pressure.
- Adhesive layerBonds the aluminium to the inner pipe.
- Inner layer · HDPESmooth, corrosion-free and hygienic in contact with water.
Sizes
Every catalogue size
Open a model for its own page. Custom wall and aluminium thickness are made to your drawing.
| Model | OD × wall (mm) | Al layer (mm) | Pressure | Packing | Inquiry |
|---|---|---|---|---|---|
| SL-PEG-1620 | 16 × 2.0 | 0.20 | 0.4 MPa | 100 / 200 m coils | |
| SL-PEG-2020 | 20 × 2.0 | 0.25 | 0.4 MPa | 100 / 200 m coils | |
| SL-PEG-2525 | 25 × 2.5 | 0.30 | 0.4 MPa | 50 / 100 m coils | |
| SL-PEG-3230 | 32 × 3.0 | 0.40 | 0.4 MPa | 50 / 100 m coils | |
| SL-PEG-4035 | 40 × 3.5 | 0.50 | 0.4 MPa | 50 / 100 m coils |
Technical data
Performance and installation
- Designed with reference to
- GB/T 18997.1 (gas type) · ISO 17484
- Application class
- Gas ≤ 0.4 MPa, −20 to 60 °C
- Max. working temperature
- 60 °C
- Nominal pressure
- 0.4 MPa (4 bar)
- Aluminium layer welding
- Overlap-welded aluminium layer
- Thermal conductivity
- 0.45 W/(m·K)
- Linear expansion
- 0.025 mm/(m·K)
- Bending radius
- ≥ 5 × OD by hand, ≥ 3 × OD with a bending spring (16–32 mm)
- Colours
- Yellow outer layer
- Supply form
- 16–20 mm: 100 / 200 m coils · 25–40 mm: 50 / 100 m coils
- Joining
- Fittings suited to gas service, selected according to the system
FAQ
Common questions
Do you supply fittings?
We specialize exclusively in manufacturing multilayer composite pipes (coils and straight lengths) and do not supply fittings directly. Pipes use metric OD and wall-thickness specifications, with nominal inner diameters listed on product pages to help you select the corresponding connection system for your market.
What is the difference between overlap-welded and butt-welded?
Overlap-welded aluminium has a narrow overlapping seam; butt-welded aluminium is joined edge to edge, giving an even wall and round profile. Butt-welded models end in -B.
How is the pipe marked?
Each pipe carries the model code, size, production date and batch number, so every length can be traced to its production record.
Tell us what you need.
Sizes, quantities and your market. You get a quotation within 24 hours.