Reducing Tee VIEGA 42 x 22 x 42 mm (model 324902) — copper plumbing fitting

VIEGA reducing tee 42 x 22 x 42 mm is a copper plumbing fitting designed to join two main runs of 42 mm piping with a reduced branch of 22 mm. It is intended for water distribution and heating systems where a reliable transition between different pipe diameters is required. The fitting delivers a compact, corrosion-resistant junction suitable for both residential and commercial installations and is compatible with standard copper piping practices.

Advantages

This reducing tee is made of copper, providing good thermal conductivity and corrosion resistance for long-term service in potable water and heating circuits. Its reduction design enables a smooth change in diameter with minimal hydraulic disturbance, and the robust construction ensures mechanical strength under typical system pressures. The fitting is suitable for professional soldering or approved joining methods used with copper pipework, offering consistent joint integrity when installed according to applicable codes.

Suitable for

• Distribution manifolds in domestic and commercial water systems
• Branch connections in central heating and radiator circuits
• Retrofit and extension work where a 42 mm main must feed a 22 mm branch
• Areas requiring corrosion-resistant copper fittings

Key specifications

• Material: copper
• Connection layout: reducing tee with branch reduction
• Dimensions: main runs 42 mm, branch 22 mm
• Intended media: potable water, heating fluids
• Typical joining methods: soldering or other approved copper pipe joining techniques

How to use

Prepare pipe ends by cutting square and cleaning to remove oxidation and debris. Fit the reducing tee onto the prepared copper pipes, ensuring full insertion to the fitting stops. Join the connection using the recommended method for copper: apply flux as required and solder or braze with appropriate filler material, or use other approved joining techniques compatible with the fitting. Allow joints to cool and then pressure-test the system according to local standards to verify leak-free installation.

Usage recommendations

Follow local plumbing codes and manufacturer guidelines when selecting a joining method and performing installation. Use correct filler alloys and flux for potable water systems, ensure adequate ventilation during soldering or brazing, and perform pressure testing after installation. For installations involving different materials or special fluids, verify compatibility prior to use.