Lukjan RX81070505 Branch Wye 7x5-5 Duct Fitting

Product Description

The LUKJAN RX81070505 is a 7x5-5 branch wye fitting designed for use in sheet metal duct systems. This wye fitting splits a main duct run into two branch takeoffs, allowing airflow to be distributed across multiple zones or diffusers. It falls in the tees and wyes category of HVAC supply fittings and is typically installed by sheet metal contractors and HVAC technicians during new construction or system modification work. The 7x5-5 designation reflects the main trunk and branch opening dimensions, making it a recognized size in residential and light commercial duct layout.

Branch wye fittings like the RX81070505 are used in forced-air HVAC supply and return duct systems where a smooth, angled split is preferred over a sharp tee to reduce turbulence and static pressure loss. This fitting is suited for residential and light commercial applications where duct runs need to be branched efficiently. It is typically installed in trunk-and-branch duct layouts during rough-in or retrofit work on ducted heating and cooling systems.

Key Features

• 7x5-5 sizing provides a defined trunk-to-branch transition for standard duct layouts
• Wye geometry reduces turbulence at the branch point compared to square tee fittings
• Designed for sheet metal duct system installation by HVAC professionals
• Categorized under Branch Wyes for straightforward specification and ordering

Compatibility

Designed as an OEM-style sheet metal branch wye for use in residential and light commercial forced-air duct systems requiring a 7x5-5 wye configuration.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal contractors. Shut down the air handling unit and confirm the system is de-energized before modifying ductwork. Secure the fitting to adjacent duct sections using sheet metal screws and seal all joints with mastic sealant or UL 181-listed tape in accordance with local mechanical codes and SMACNA guidelines. Do not use this fitting in applications outside its rated duct dimensions.

Technical Specifications

• Fitting Type: Branch Wye
• Size Configuration: 7x5-5
• Category: HVAC Tees and Wyes

Standard Information

• Brand: LUKJAN
• Manufacturer Part Number: RX81070505