PEX-AL-PEX Multilayer Pipes (for Gas)
PEX-AL-PEX multilayer pipes are a revolutionary product for gas market. They are proven to be more cost-effective, easier and faster to install, as well as to have superior characteristics and benefits as compared with traditional gas pipes. The PEX-AL-PEX pipe comes with 5 layers. The inner and outermost layers are PEX and central core layer is overlap-welded aluminum. They are bonded by hot melt adhesives.
Pipe Colors
Inner layer: transparent
Outer layer: Yellow, gray
Executive Standard: ISO 17484-1, AS 4176.8, GB/T 18997.1
Features of our PEX-AL-PEX Multilayer Pipes
1. A perfect gas piping solution made using high-class crosslinked polyethylene;
2. Excellent resistance to corrosion and high strength;
3. Coiled pipe need much less fittings;
4. Easy installation and connection
Applications
Suitable for indoor NG and LPG pipe system with maximum operating pressure of up to 0.4Mpa
| Spec. (mm) | Wall Thickness (mm) | Min ring Strengths (N) | Min burst Pressure (Mpa) | Package (m/coil) |
| 1216 | 2.0 | 2300 | 6.00 | 200 |
| 1620 | 2.0 | 2500 | 5.00 | 100 |
| 2025 | 2.5 | 2500 | 4.00 | 100 |
| 2532 | 3.0 | 2650 | 4.00 | 100 |
| Bending radius | ≥5D(D means outside diameter) | ||
| Working temperature | 40 ℃ -60℃ | ||
| Oxygen - permeability | 0 | ||
| Coefficient of roughness | 0.0004mm | ||
| Hydrostatic Sustained Pressure Test | 10h, 60℃, 2.72Mpa, No burst occur | ||
| Delamination | No delamination when tested with the adapter tool (1.1ID) | ||
| Fusion Line Test | No visible damage when tested with the adapter tool(1.1 ID) | ||
| Resistance to gas group performance | Test Medium | The maximum rate of change of average quality | The average maximum tensile force control loop rate of change of radial |
| Mineral Oil | 0.5 | ± 12 | |
| Tert-butyl Mercaptan | -0.5 | ||
| Methanol Into Ethylene Glycol | 1.0 | ||
| Toluene | 1.0 | ||
Copper Fittings for Gas Pipe System
Due to different connection methods, the fittings for our PEX-AL-PEX multilayer pipes come in three types: Slip-on fittings, press fittings and compression fittings.
Fitting specifications: dn16-dn32
