PEX-AL-PEX Composite Pipe – High-Performance Multilayer Pipe for Hot & Cold Water Systems
PEX-AL-PEX composite pipe (also known as multilayer composite pipe or PEX aluminum PEX pipe) is a high-performance piping solution widely used in plumbing, heating, and gas distribution systems. By combining cross-linked polyethylene (PEX) with an aluminum core layer, this pipe delivers superior strength, temperature resistance, and dimensional stability compared to single-layer plastic pipes.
What Is PEX-AL-PEX Pipe?
PEX-AL-PEX pipe consists of five layers:
- Inner layer: Cross-linked polyethylene (PEX)
- Adhesive layer
- Aluminum core layer
- Adhesive layer
- Outer PEX protective layer
The aluminum layer is longitudinally welded and provides oxygen barrier protection, shape stability, and enhanced pressure resistance. This structure integrates the flexibility of plastic with the rigidity of metal.
Key Features of PEX-AL-PEX Composite Pipes
Suitable for hot and cold water systems, typically operating up to 95°C, making it ideal for underfloor heating and central heating systems.
The aluminum core significantly improves pressure resistance and structural stability.
The aluminum layer prevents oxygen penetration, protecting boilers and metal components from corrosion.
Compared to standard PEX pipes, PEX-AL-PEX pipes have reduced thermal expansion, ensuring dimensional stability.
The inner PEX layer resists scaling, rust, and chemical corrosion, ensuring long-term system reliability.
Lightweight, bendable, and compatible with compression, press, and crimp fittings, reducing installation time and labor costs.
Available Specifications
Typical specifications include:
- Diameter range: 16mm – 63mm
- Pressure rating: PN10 – PN25
- Standard compliance: ISO, DIN, ASTM, and EN standards
- Color options: white, red, blue, yellow (for gas applications)
Custom lengths and packaging options are available for bulk industrial supply.
Why Choose PEX-AL-PEX Composite Pipe?
Compared with traditional copper or galvanized steel pipes, PEX-AL-PEX pipes offer lower installation costs, better corrosion resistance, and longer service life. Compared with single-layer PEX pipes, they provide enhanced rigidity, oxygen barrier performance, and improved dimensional control.
For modern plumbing and heating systems requiring durability, efficiency, and cost-effectiveness, PEX-AL-PEX composite pipe is a reliable and widely adopted solution.
Our company adopts a dual-channel procurement model of both online and offline. If you need it, you can choose to visit our offline factory or communicate directly with the salesperson online.
Our address
Jianxi District, Luoyang City, Henan Province, China - North Hang Technology Park
Phone Number
(86)-15038689376
cnzjpipe@mtwkj.com
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