IVAR Alpex - Duo XS rod 75 x 5 , 83575005

Product detailed description

This PE-AL-PEX pipe is commonly used in residential and commercial buildings for central heating systems, domestic hot water distribution and underfloor heating applications. It is designed for use in environments where thermal expansion and contraction are significant due to fluctuating temperatures. Installers working on renovation projects or new builds often select this product for its flexibility and durability. The pipe is pre-cut into 5 m rods, making it ideal for direct installation without additional cutting, especially when using prefabricated components or modular systems.

Its multilayer construction ensures stability under varying pressure and temperature conditions. The inner layer is made of high-density polyethylene, while the middle layer consists of an aluminium reinforcement, and the outer layer is cross-linked polyethylene. It is particularly suited for systems where long-term reliability and minimal maintenance are required.

Technical parameters

Installation and connection

Installation begins with measuring and marking the pipe according to the layout. The pipe can be cut using a fine-toothed hacksaw or a pipe cutter. After cutting, any burrs should be removed with a deburring tool to avoid damage to seals during fitting installation. Crimping requires a compatible crimper and crimp rings, while press fitting requires a press tool and matching dies. Ensure the pipe is fully inserted into the fitting before applying the crimp or press. Check that the tool aligns correctly with the fitting to avoid misalignment, which could cause leaks. A common mistake is using incorrect crimp rings or press dies, which can compromise the joint integrity.

Compatibility and accessories

This pipe is compatible with TA and RA crimping systems as well as press fittings from the same manufacturers. To complete the installation, crimp rings or press dies specific to the pipe’s outer diameter must be used. Additional components such as valves, manifolds and heat emitters must also be selected based on the system design. Although no alternative products are listed, it is recommended to consult the manufacturer’s technical documentation for full compatibility details with other system components.

Technical background for designers

The PE-AL-PEX construction combines the flexibility of polyethylene with the rigidity of aluminium, reducing axial expansion compared to single-layer pipes. The cross-linked polyethylene outer layer enhances thermal resistance and prevents oxygen ingress, which can degrade system components over time. This makes it suitable for closed-loop systems where chemical stability is important. The pipe integrates well with radiant floor heating systems and can be embedded in screed or insulation layers. Longevity depends on correct installation practices and avoiding exposure to UV light or aggressive chemicals outside its intended use.

Service and operation

Once installed, the system should be tested for leaks and pressure loss before commissioning. During operation, regular visual inspections are recommended to detect signs of wear or damage. There are no specific service intervals outlined in the provided data, but any issues with joints or fittings should be addressed immediately. Avoid using solvents or cleaning agents not specified by the manufacturer to prevent degradation of the pipe material or seals.

Frequently asked questions

Can the pipe be used for underfloor heating?
Yes, the operating temperature and pressure rating make it suitable for underfloor heating systems.

What tools are needed for installation?
A crimping tool and crimp rings or a press tool and dies are required depending on the chosen connection method.

Is the pipe suitable for domestic hot water systems?
Yes, the maximum operating temperature of 95°C supports use in domestic hot water applications.

Can it be embedded in concrete screed?
Yes, the pipe is designed for embedding in screed or insulation layers as part of radiant heating systems.