Copper Reducing Tee Conex Series 5000 18 x 15 x 15 mm

Conex Series 5000 copper reducing tee 18 x 15 x 15 mm is a three-way soldering/brazing fitting designed to join an 18 mm copper pipe to two 15 mm copper pipes. Manufactured to suit low-pressure copper installations, this reducing tee enables a reliable and durable change of pipe size in potable water, central heating and similar plumbing systems. The fitting is intended for use where a permanent, leak-resistant copper joint is required and is compatible with standard soldering or brazing techniques.

Advantages

The Conex Series 5000 reducing tee provides a compact and robust solution for transitions between different copper pipe diameters, offering leak-resistant joints when correctly soldered or brazed. Its smooth internal profile maintains flow characteristics while minimising turbulence at the junction. The fitting is suitable for repeated thermal cycles typical of heating systems and is compatible with potable water when installed according to applicable regulations and good practice.

Suitable for

• Domestic and commercial potable water distribution
• Central heating and radiator connections
• Plumbing installations requiring a reduction from 18 mm to 15 mm
• Repair or modification of existing copper pipework

Key specifications

• Material: copper
• Type: reducing tee (three-way fitting)
• End connections: plain ends for soldering or brazing
• Dimensions: 18 mm branch to two 15 mm outlets
• Application pressure: suitable for low-pressure copper systems (plumbing and heating)

How to use

Prepare pipe ends by cutting square, deburring and cleaning to remove oxidation and contaminants. Apply suitable flux to the fitting and pipe ends, assemble the joint with correct insertion depth, and heat evenly for soldering or brazing according to the filler material manufacturer's instructions. Allow the joint to cool naturally and then inspect for secure, uniform solder distribution and any signs of flux residue removal requirements. Installations must follow local plumbing codes and manufacturer guidance for potable water and heating systems.

Usage recommendations

Use qualified personnel for soldering or brazing to ensure compliance with safety and local regulations. Verify compatibility of solder/braze alloys with potable water systems where required, and pressure-test the installation after completion to confirm leak-free operation.