Screwed joint t-piece 16x16x16 for plastic-aluminium

Product detailed description

This threaded tee joint is commonly used in residential and commercial buildings for connecting PEX-AL-PEX pipes in water supply systems, radiant floor heating circuits and radiator distribution networks. Installers working on underfloor heating systems or domestic hot and cold water distribution will find this component useful for branching pipe runs without requiring crimping tools. The threaded design allows for standard wrench installation, making it a practical alternative to crimp fittings when tool availability is limited.

The fitting is particularly suited for applications where flexibility in layout adjustments is required during installation. It supports long-term operation under standard domestic heating and water supply conditions. The combination of brass components and EPDM sealing ensures resistance to corrosion and maintains a tight seal over time. The recommended pipe size of 16x2 mm aligns with common specifications for underfloor heating and low-pressure water systems.

Technical parameters

Installation and connection

Installation requires cutting the pipe to length and inserting it into the fitting until it reaches the stop mark. The pipe should then be secured using a standard spanner on the hexagonal nuts. It is essential to ensure that the pipe is fully inserted and that the nuts are tightened evenly to prevent misalignment. Common mistakes include over-tightening, which can damage the sealing rings, or under-tightening, which may lead to leaks. Installers should also verify that the pipe type matches the recommended PEX-AL-PEX 16x2 mm specification.

Compatibility and accessories

This tee joint is compatible with PEX-AL-PEX, PE-RT-AL-PE-RT and other specified pipe types. It is recommended to use stainless steel manifolds for optimal performance. Additional components such as straight or elbow threaded joints may be needed to complete the piping layout. Related products include the threaded tee joint 20x20x20 for larger pipe sizes and the threaded tee joint 16x3/4x16 with external thread for mixed metal connections.

Technical background for designers

The operating principle relies on mechanical compression between the pipe and the sealing rings within the brass body. The teflon washer reduces friction during tightening and prevents galling of the brass threads. The EPDM sealing rings provide a flexible, resilient seal that accommodates minor dimensional variations in the pipe. The brass construction offers durability and resistance to corrosion, making it suitable for both potable water and heating media. Long-term performance depends on correct installation and adherence to recommended pipe types and operating conditions.

Service and operation

Regular visual inspections should be conducted to check for signs of leakage or corrosion. The integrity of the sealing rings should be verified during maintenance checks, especially in systems subject to frequent temperature fluctuations. No scheduled service intervals are specified in the technical documentation. If a leak develops, the fitting should be disassembled, inspected for damage and reassembled with new sealing rings if necessary.

Frequently asked questions

Can this tee joint be used with PE-RT pipe?
Yes, it is compatible with PE-RT-AL-PE-RT and other specified pipe types including Giacomini, Barbi and HPW.

Is this fitting suitable for gas applications?
No, the product is not certified for use with natural gas or other combustible gases.

What tools are required for installation?
A standard spanner or wrench is sufficient to tighten the hexagonal nuts during installation.

Can this joint be used in a mixed metal system?
Yes, it can be combined with stainless steel manifolds and other compatible fittings for mixed metal systems.

Documents for download

• Hygienic certificate for brass fittings in PEX-AL-PEX system (PDF)