Reducing Tee VIEGA 42 x 28 x 42 mm — model 292058, copper press fitting

The VIEGA reducing tee 42 x 28 x 42 mm is a copper press fitting designed to create a reliable branch from a 42 mm main run to a 28 mm feed while preserving a second 42 mm outlet. Intended for potable water and heating installations, this model provides a compact solution for distribution manifolds, pipework changes in HVAC systems, and general plumbing tasks where a reduction and branching are required. The fitting is compatible with press-connection systems and elastomeric sealing elements designed for copper press fittings.

Advantages

The copper construction ensures good thermal conductivity and corrosion resistance suitable for hot and cold water systems. Press-connection design delivers fast, consistent joints without open flames or soldering, reducing installation time and fire risk. The dimensional arrangement (42 x 28 x 42 mm) allows a seamless transition between different pipe sizes while maintaining flow continuity on the two larger branches.

Suitable for

• Domestic and commercial potable water distribution
• Heating systems and radiator connections in hydronic installations
• Distribution manifolds and branch lines in HVAC piping
• Repairs or retrofits where a 42 mm main must feed a 28 mm branch

When it may not be suitable

This reducing tee is intended for use with compatible press tools and appropriate sealing elements; it is not suitable for fusion, threaded, or soldered joints without using the correct connection method. It is only rated for applications and fluids compatible with copper press fittings and listed seals; use outside recommended media or temperature/pressure ratings may lead to premature failure.

Key specifications

• Material: Copper
• Connection type: Press-fit
• Dimensions: 42 mm × 28 mm × 42 mm (main run × branch × run)
• Application: Potable water and heating systems
• Suitable for use with elastomeric sealing elements designed for copper press fittings

How to use

Prepare pipe ends by cutting square, deburring and cleaning to ensure a proper press connection. Insert pipes fully into the fitting until they reach the depth stop. Use a compatible press tool and correct jaw for 42 mm and 28 mm diameters to make the press connections according to the tool manufacturer’s instructions. Verify that seals are correctly positioned and inspect each joint visually after pressing. Test the system under appropriate pressure before putting into service.

What to consider before purchase

• Confirm compatibility of the fitting with your press tool and press jaws for 42 mm and 28 mm sizes
• Ensure material suitability for the intended fluid, temperature and pressure ranges
• Check that required sealing elements are available and approved for potable water if applicable
• Plan access for pressing the fitting in confined spaces

Usage recommendations

Follow manufacturer instructions for press tooling and sealing elements, perform pressure testing after installation, and use appropriate personal protective equipment. For potable water systems use certified seals; for heating systems verify compatibility with system temperatures and inhibitors.