Copper reducing tee Conex series 5000 18 x 18 x 15 mm – plumbing fitting

Conex series 5000 copper reducing tee 18 x 18 x 15 mm is a plumbing fitting engineered to join three copper pipes where one branch requires a reduced diameter. Manufactured in copper, this reducing tee is suitable for potable water and heating systems and is intended for use with soldering or brazing methods to create a mechanically reliable, leak-resistant joint. The design enables smooth flow transitions between 18 mm main runs and a 15 mm branch while maintaining compatibility with standard copper tube assemblies.

Advantages

The Conex copper reducing tee offers dimensional accuracy and consistent wall thickness for dependable joints during soldering or brazing. Its reducing configuration allows installation of a smaller-diameter branch without additional adapters, reducing installation time and potential leak points. Constructed from copper, the fitting provides corrosion resistance appropriate for potable water and heating circuits and is compatible with standard copper plumbing practices.

Suitable for

• Potable water distribution systems requiring a reduced branch
• Domestic and commercial heating pipework
• Repairs or extensions where an 18 mm main run must feed a 15 mm outlet
• Soldering or brazing installations with copper tubing

Key specifications

• Material: Copper
• Configuration: Reducing tee (two 18 mm inlets, one 15 mm outlet)
• Nominal diameters: 18 mm × 18 mm × 15 mm
• End connection type: Plain copper tube ends for soldering/brazing
• Intended media: Potable water and heating fluids

How to use

Prepare copper tubes by cutting squarely and cleaning the outside of the tube ends and the fitting sockets to remove oxidation and contaminants. Apply appropriate flux to tube ends and fitting bores, insert tubes fully into the reducing tee, and perform soldering or brazing according to applicable codes and safety procedures. Allow joints to cool naturally and inspect for complete capillary flow of solder or braze material and for leaks before putting the system into service.

Usage recommendations

Use compatible flux and solder alloys suitable for potable water systems and follow local plumbing regulations. Verify pipe fitment and clearance before heating to avoid overheating adjacent materials. For systems under pressure, perform a pressure test after installation and repair any visible defects before commissioning.