🛡️ Zero Oxygen Diffusion
Aluminium layer prevents oxygen ingress — protects boilers, heat pumps, and manifold components from corrosion.
Alu-PEX Multilayer Composite Pipe
16mm × 2mm aluminium-barrier pipe. Holds shape when bent — no clips needed on straight runs. Zero oxygen diffusion. Ideal for heat pump systems and screed installations.
Specifications & Pricing
| Coil Length | Code | Approx. Weight | List Price | Trade Price | Coverage @ 200mm |
|---|---|---|---|---|---|
| 100m | ALU16-100 | 14 kg | £145.00 | £104.50 | 20 m² |
| 200m | ALU16-200 | 28 kg | £270.00 | £195.00 | 40 m² |
| 500m | ALU16-500 | 70 kg | £625.00 | £450.00 | 100 m² |
| 1000m | ALU16-1000 | 140 kg | £1,150.00 | £830.00 | 200 m² |
Why Choose Alu-PEX?
🔧 Holds Its Shape
Bends stay put without spring-back. Fewer clips needed, faster installation, cleaner pipe runs.
🌡️ High Temperature Rating
95°C continuous, 110°C peak. 10 bar at 20°C. Suitable for all wet UFH and radiator circuits.
📏 Dimensional Stability
Low thermal expansion (0.025 mm/m/K vs 0.15 for PEX). Less stress on fittings and screed.
⚡ Heat Pump Optimised
Thin wall (2mm) = faster response. Ideal for low-temperature heat pump systems (35–45°C flow).
✅ WRAS & KIWA Approved
Full UK water regulations compliance. 50-year design life. Compatible with press-fit and compression fittings.
Alu-PEX vs Standard PEX
| Property | Alu-PEX 16×2 | PEX 16×2 |
|---|---|---|
| Oxygen Barrier | ✅ Aluminium layer | ❌ EVOH (degrades) |
| Shape Retention | ✅ Excellent | ❌ Spring-back |
| Thermal Expansion | 0.025 mm/m/K | 0.15 mm/m/K |
| Clip Spacing | 600–800mm | 300–400mm |
| Heat Output (at 45°C) | ~85 W/m² | ~78 W/m² |
| Trade Price (500m) | £450 | £595 |