VIEGA soldered branch tee 15x18x15 mm 103200 for copper piping

VIEGA soldered branch tee 15x18x15 mm is a copper pipe fitting engineered to create a reliable lateral connection between pipes of different diameters in potable water and heating systems. The fitting provides capillary (soldered) joints with two 15 mm ends and one 18 mm branch, enabling secure transitions and long-term leak resistance. Manufactured from copper to meet common plumbing material standards, this branch tee is intended for integration into domestic and commercial piping networks where a compact, robust branch connection is required.

Advantages

The soldered branch tee offers durable copper construction that resists corrosion and thermal stresses typical in water and heating circuits. Capillary connections ensure a tight, low-profile joint that minimizes flow disruption and provides reliable sealing when installed with appropriate solder and flux. Its mixed-diameter design (15 mm to 18 mm) allows straightforward adaptation between differing pipe sizes without additional adapters, simplifying installation and reducing potential leak points.

Suitable for

• Creating lateral connections in potable water supply systems
• Branching in domestic and commercial heating circuits
• Repairs and alterations that require joining 15 mm and 18 mm copper pipes
• Applications where a compact, soldered branch connection is preferred

Key specifications

• Material: copper
• Connection type: capillary (soldered) joints
• End diameters: 15 mm (two ends), 18 mm (branch)
• Application: potable water and heating systems
• Design: branch tee for lateral pipe connection

How to use

Prepare pipes by cutting squarely and removing burrs and oxidation at the joining surfaces. Clean the fitting and pipe ends with appropriate abrasives and apply flux recommended for copper capillary soldering. Insert pipes fully into the fitting, heat the joint evenly with a suitable torch until the correct solder flow is achieved, and feed solder to the joint so it is drawn into the capillary clearances. Allow joints to cool naturally, then remove any residual flux and inspect visually for complete solder coverage and proper alignment before pressure testing the circuit according to applicable standards.

Usage recommendations

Use lead-free solder and flux approved for potable water installations. Ensure installation is performed by a qualified fitter and follow local plumbing codes and pressure testing procedures. For systems with dissimilar metals, consider appropriate measures to prevent galvanic corrosion. Store fittings in a dry environment to avoid surface oxidation prior to installation.