Reducer Tee fitting VIEGA 22x15x22 mm 100445 for plumbing connections

VIEGA reducer tee 22x15x22 mm is a three-way plumbing fitting designed to create a mechanical branch between two parallel 22 mm runs and a reduced 15 mm branch. Manufactured by VIEGA, this reducer tee provides a compact transition point for potable water and heating circuits where pipe diameters change. It is intended for use with compatible VIEGA pipe systems and common installation methods in residential and light commercial plumbing.

Advantages

The reducer tee delivers a secure mechanical connection with a clear stepped reduction from 22 mm to 15 mm, ensuring flow continuity and minimizing turbulence at the junction. Its compact form saves space in manifolds and tight routing areas, while the standardized dimensions simplify integration with existing 22 mm and 15 mm piping. The fitting is suitable for repeated professional installation practices and supports reliable performance in water and heating systems when used with appropriate joining techniques and compatible VIEGA components.

Suitable for

• Branching potable water supply lines between 22 mm and 15 mm pipes
• Creating tees in domestic heating circuits where a reduced outlet is required
• Compact installations and manifold connections with limited space
• Repairs or modifications to existing 22 mm pipe runs that require a smaller branch

Key specifications

• Material and connection type: designed for mechanical joining with compatible VIEGA system pipes
• Pipe diameters: two 22 mm inlets/outlets and one reduced 15 mm branch
• Application media: potable water and central heating fluids where compatible with system materials
• Installation environment: indoor plumbing and heating installations, service cabinets and manifolds
• Form factor: compact tee with a stepped reduction for space-efficient routing

How to use

Select the reducer tee when you need to divert flow from a 22 mm run to a 15 mm branch while maintaining two 22 mm continuations. Prepare pipe ends according to the VIEGA system instructions and local plumbing standards, ensuring cut ends are square, deburred and clean. Assemble the fitting using the appropriate joining method specified for the VIEGA product family you are using (mechanical press, push-fit, or compatible connector type). Verify alignment and support the piping to prevent stress at the joint, then pressure-test the system after installation to confirm watertight integrity.

Usage recommendations

Use only with compatible VIEGA pipes and connectors and follow the manufacturer’s installation instructions and local plumbing codes. Avoid exposing the fitting to aggressive chemicals or temperatures beyond the limits of the connected pipe system. Support the reduced branch to prevent strain and perform a pressure test after installation to confirm correct assembly.