Copper reducing tee VIEGA 22x18x18 mm 103217 – plumbing pipe fitting

Copper reducing tee VIEGA 22x18x18 mm is a solderable plumbing fitting designed to connect one 22 mm copper line to two 18 mm copper branches. Intended for use in potable water and heating systems, this reducing tee provides a reliable transition between pipe sizes and enables secure branch-offs in both residential and commercial installations. The fitting is manufactured for conventional soldering or brazing techniques, ensuring durable metal-to-metal joints when installed by a certified plumber or heating technician.

Advantages

The reducing tee is made of copper, offering good thermal and corrosion resistance suitable for potable water and hot-water heating circuits. Its concentric reduction from 22 mm to 18 mm ensures smooth hydraulic flow with minimal turbulence at the junction. The design supports standard soldering and brazing processes, producing leak-tight joints when proper flux and heating procedures are used. Compatibility with common copper pipe systems simplifies integration into existing networks and reduces the need for additional adapters.

Suitable for

• Potable water supply lines in residential and commercial buildings
• Domestic hot-water and central heating distribution
• Branching off a main 22 mm feed to two 18 mm circuits
• Plumbing repairs and renovations requiring size reduction

Key specifications

• Material: copper
• Connection type: solderable/brazable socket ends
• Main inlet diameter: 22 mm
• Branch outlet diameters: 18 mm (two outlets)
• Application medium: potable water, heating fluids
• Suitable joining methods: soft soldering, silver brazing

How to use

Prepare pipe ends by cutting square, removing burrs and cleaning with an appropriate abrasive or emery cloth. Apply flux to the cleaned pipe ends and the fitting sockets, then insert pipes fully into the tee sockets. Heat the joint uniformly with a suitable torch until the solder or brazing filler flows and creates a continuous fillet around each socket. Allow joints to cool naturally before checking for leaks. Follow local plumbing codes and manufacturer guidance for safe installation and pressure testing.

Usage recommendations

Ensure compatibility with pipe wall thickness and local regulations before installation. Use appropriate flux and filler metals rated for potable water systems when connecting drinking water lines. For heating systems, verify pressure and temperature ratings of the overall installation; when in doubt, consult a licensed plumber or heating specialist to confirm correct materials and joining methods.