7" Adhesive Duct Takeoff with Damper

7" Adhesive Duct Takeoff with Integral Damper – Professional HVAC Component

The 7-inch adhesive duct takeoff with damper is engineered for secure branch connections in sheet metal trunk lines. Manufactured from 26-gauge galvanized steel, this fitting provides both structural integrity and airflow control, making it suitable for residential, light commercial, and retrofit applications.

Applications

Designed for use in forced-air heating and cooling systems, this takeoff attaches directly to rectangular or round duct surfaces without the need for screws or rivets. The integral opposed-blade damper allows adjustment or shutoff of airflow to individual runs as required by system design.

Technical Specifications

• Diameter: 7 inches
• Collar Length: 6 inches
• Material: 26-gauge galvanized steel, G-30 coating
• Flange: 1-1/2 inch adhesive flange
• Damper: Integral manual damper with locking handle

Installation Requirements

Surface preparation is critical for a proper seal. Installers should ensure that the trunk line surface is clean and free from oil or debris before applying. The adhesive flange must be pressed firmly to create a continuous bond. A bead of approved duct sealant may be added for additional air-tightness. Installation should conform to SMACNA guidelines and local mechanical codes.

Contractor Notes

Adhesive takeoffs reduce installation time by eliminating the need for mechanical fasteners. The integral damper provides on-site airflow balancing, simplifying commissioning. For maximum reliability, confirm damper position during startup and ensure that adhesive surfaces are fully engaged to prevent air leakage.

Key Features

• 26-Gauge Construction: Heavy-duty steel for long service life
• Adhesive Flange: Simplifies installation and reduces labor time
• Integral Damper: Provides adjustable airflow control at branch connections
• 7" Diameter: Standard size for common branch duct transitions

The 7" adhesive duct takeoff with damper provides HVAC professionals with a durable, code-compliant solution for efficient duct branch connections and airflow regulation.