1 inch x 1/8 inch x 1 inch Copper Baseboard Reducing Tee Copper x Female x Copper

1 inch x 1/8 inch Copper Reducing Tee – Baseboard Heating Transition Fitting

The 1 inch x 1/8 inch copper reducing tee is designed for use in hydronic baseboard heating systems and low-pressure plumbing applications requiring a reduction in pipe diameter. Manufactured from lead-free copper, this fitting ensures compatibility with potable water and complies with national plumbing codes regarding lead content.

This tee features a 1 inch copper tube size on the run with a 1/8 inch branch, allowing integration of smaller diameter lines into standard copper distribution loops. It is typically installed via soldering (sweat connection) and is engineered to maintain mechanical integrity under fluctuating temperature and pressure conditions.

Technical Features

• ✅ Material: Lead-free wrought copper (ASTM B75/B88 compliant)
• ✅ Connection: Cup x Cup x Cup (sweat connections for soldering)
• ✅ Nominal Sizes: 1 inch run x 1/8 inch branch
• ✅ Operating Pressure: Suitable for up to 200 PSI in water systems
• ✅ Temperature Range: Rated for continuous service up to 400°F when properly joined with lead-free solder

Application and Use

This fitting is used primarily in closed-loop baseboard heating systems where control piping, sensors, or drain branches require connection to a larger diameter main. It is also applicable in compact plumbing layouts requiring micro-line branching from standard copper supply lines.

• • Residential baseboard heating manifolds
• • Transition fittings for low-volume bleed lines or air vents
• • Integration of gauges or test ports in hydronic loops

Installation Guidelines

Install using industry-standard soldering techniques. Surfaces must be cleaned, fluxed, and heated evenly before applying lead-free solder. Overheating or contamination may affect the integrity of the joint. Always ensure alignment with system design tolerances and verify adherence to local plumbing and mechanical codes.

Material and Code Compliance

Lead-free copper fittings are mandatory in potable water systems and are approved under NSF/ANSI 61 and 372 standards. The use of these fittings supports compliance with federal Safe Drinking Water Act regulations and most local codes throughout the United States.