Pexb-AL-Pexb

MODUS PEX-A-AL-PEX-B PIPE SYSTEM

Multi-Layered Strength – Flexibility, Durability and Stability All in One

Modus PEX-A-Al-PEX-B pipes are multilayer composite pipes made from a combination of high-performance PEX (cross-linked polyethylene) and aluminum interlayer technology. This structure combines the flexibility of PEX-A with the stability of PEX-B. The aluminum interlayer provides the pipe with both shape memory and a low coefficient of expansion. The result: maximum temperature resistance, excellent form retention, and long life.

High-quality LG Chem raw materials are used in production, and the aluminum layer is butt-welded. This ensures both complete sealing and excellent axial accuracy.

Technical Specifications

Feature	Value
Building Type	5 Layer (PEX-A / Adhesive / Aluminum / Adhesive / PEX-B)
Raw materials	LG Chem PEX A & B – high density cross-linked polyethylene
Aluminum Layer	Laser welded, 0.20 mm thick – provides diffusion barrier and stability
Diameter Ranges	Ø16, Ø20, Ø25, Ø32, Ø40 mm
Coil Lengths	50m – 500m
Working Temperature	Continuous 95 °C / Max. 110 °C
Working Pressure	6 bar @ 95 °C / 10 bar @ 20 °C
Coefficient of Expansion	0.025 mm/mK (Very low thanks to the aluminum layer)
Oxygen Barrier	Full metal barrier (Aluminum layer) – 100% oxygen impermeability
Standards	EN ISO 21003 / DIN 4726 / DIN 16836
Certification	TSE, KIWA and SKZ compatible production and testing processes
Color Options	White, metallic gray, red, blue
Production System	Fully traceable production under ISO 9001 quality management

Advantages

- Multi-layer structure: combines the flexibility of PEX with the form stability of aluminium
- Minimum expansion: Stable behavior like a metal pipe thanks to the laser-welded aluminum layer
- Excellent shape retention: Retains shape when bent, does not spring back after assembly
- Full oxygen barrier: Thanks to the metal middle layer, the risk of corrosion is eliminated
- High temperature resistance: continuous operation up to 95 °C
- Easy installation: Compatible with axial, press or push-fit connection systems
- Acoustic comfort: Quiet water flow, low vibration
- Visual aesthetics: Glossy outer layer provides a professional installation appearance

Areas of Use

- Underfloor heating and cooling systems
- Radiator connection lines
- Hot and cold water installations
- Central heating and cooling circuits
- Industrial liquid handling systems
- Recessed and surface mounting applications

Quality and Trust

Each Modus PEX-A-Al-PEX-B pipe undergoes automated ultrasonic weld inspection during production. Each batch undergoes density, tensile strength, weld strength, pressure testing, and thermal expansion tests. The production process fully complies with the ISO 9001 quality management system and EN ISO 21003 product standard. Modus' quality philosophy is based on the principle of "Zero complaints – Maximum confidence."

Conclusion

Modus PEX-A-Al-PEX-B pipes are the most advanced example of metal-plastic hybrid technology. Combining the strength of aluminum, the flexibility of PEX, and the engineering quality of Modus, they deliver long-lasting, form-stable, and leak-proof solutions.

Modus PEX-A-Al-PEX-B – Strength Inside Flexibility.