Round Duct Tee airRoxy 125 mm airRoxy 02-472

Round Duct Tee airRoxy 125 mm airRoxy 02-472 is a T-shaped branch fitting designed for circular ventilation ducts with a 125 mm diameter. It enables splitting or combining airflow in HVAC systems and provides a compact, orthogonal junction for air distribution and exhaust lines. The fitting is intended for use in residential and light commercial ventilation networks where a standard 125 mm round connection is required.

Advantages

The tee offers a straightforward mechanical connection for 125 mm round ducts, ensuring consistent airflow direction with minimal added resistance. Its geometry supports easy alignment and stable mounting within duct runs. Because it is purpose-built for circular ducts, the fitting simplifies system layout when a perpendicular branch is needed, reducing the need for additional adapters or complex transitions.

Suitable for

• Ventilation branch connections in residential HVAC systems
• Light commercial air distribution and exhaust networks
• Bathroom and kitchen exhaust routing
• Combining or splitting airflow between ducts with 125 mm diameter

Key specifications

• Nominal duct diameter: 125 mm
• Shape: T-shaped branch for circular ducts
• Function: Split or combine airflow in duct networks
• Application environment: Indoor ventilation and exhaust systems
• Compatibility: Designed to mate with standard 125 mm round duct components

How to use

Install the tee by inserting the ends of compatible 125 mm circular duct sections into the fitting until secure. Ensure straight alignment of the main duct run and the perpendicular branch before final mounting. Use appropriate clamps, sheet metal screws, or duct tape compatible with the duct material to secure connections and maintain airtight joints. Position the junction to allow accessible routing for any downstream ductwork and to avoid sharp turns that can increase airflow resistance.

Usage recommendations

Inspect connections for gaps and seal joints with suitable HVAC-grade sealant or foil tape to prevent leakage. When installing in systems with motors or fans, consider the impact of the branch on airflow balance and add dampers or balancing elements if necessary. For long-term performance, avoid severe kinks or compressions at the connection points and allow sufficient support for the duct sections to prevent sagging.