Air Flow Products 84RATD05 Stick-on Takeoff Damper 5 in

Product Description

The AIR FLOW PRODUCTS 84RATD05 is an airtight stick-on takeoff fitting designed for 5-inch round duct pipe with an integrated damper. This fitting attaches directly to rectangular sheet metal duct, creating a branch connection for round supply runs without the need for cutting or flanging the main trunk. The built-in damper allows the technician to balance airflow at the takeoff point during commissioning. HVAC installers and sheet metal contractors use this type of fitting on new construction and retrofit duct systems where airtight performance and field-adjustable airflow control are required.

The 84RATD05 is suited for residential and light commercial forced-air duct systems. It connects a 5-inch round branch duct to a flat or rectangular main trunk line using an adhesive-backed mounting design that speeds installation and reduces air leakage at the connection point. The damper makes it practical for zoned or multi-register layouts where individual outlet balancing is needed. Sheet metal and HVAC contractors will find this fitting appropriate for supply-side trunk-and-branch configurations in low-pressure ducted air systems.

Key Features

• Airtight construction minimizes conditioned-air leakage at the branch connection
• Stick-on adhesive backing allows direct attachment to rectangular trunk duct without cutting flanges
• Integrated damper provides field-adjustable airflow balancing at the takeoff point
• 5-inch round outlet connects to standard 5-inch round flex or rigid branch duct
• Speeds installation compared to traditional collar-and-screw takeoff methods

Compatibility

Designed as an OEM-style replacement and new-installation fitting for residential and light commercial forced-air duct systems using 5-inch round branch duct connected to rectangular sheet metal trunk lines.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal contractor. Power down the air handler and set the thermostat to off before opening any duct section. Ensure the trunk duct surface is clean and free of dust or grease before applying the adhesive backing to achieve a proper airtight seal. Verify the damper position and branch duct connections comply with local mechanical codes and SMACNA duct construction standards before restoring system operation.

Technical Specifications

• Outlet Size: 5 inches (round)
• Damper: Integrated
• Mounting Type: Adhesive stick-on
• Connection Type: Round pipe takeoff

Standard Information

• Brand: AIR FLOW PRODUCTS
• Manufacturer Part Number: 84RATD05