Southwark Metal ATD_16IN Duct Takeoff 16 in with Damper

Product Description

The SOUTHWARK METAL ATD_16IN is a 16-inch diameter Air-Tite sheet metal duct takeoff with an integrated damper, constructed from hot dip galvanized steel. It is designed to branch conditioned air from a main trunk duct into a runout or branch duct in forced-air HVAC systems. The damper allows airflow balancing at the takeoff point, giving installers direct control over zone distribution without adding a separate balancing component. This fitting is fabricated to meet ACCA and SMACNA standards, making it appropriate for both new construction and retrofit ductwork installations completed by licensed HVAC technicians and sheet metal contractors.

This takeoff is suited for residential and light commercial forced-air systems where trunk-and-branch duct layouts are used. The 16-inch diameter fits larger trunk duct configurations common in high-capacity air handlers and rooftop units. The Air-Tite construction helps reduce air leakage at the branch connection point, supporting tighter duct system performance in line with ACCA Manual D design requirements. HVAC contractors and sheet metal mechanics will find this fitting applicable to supply duct systems requiring individual branch damper control at the trunk.

Key Features

• 16-inch diameter opening for high-volume branch duct connections
• Integrated damper for airflow balancing without a separate fitting
• Hot dip galvanized steel construction resists corrosion in attic, crawlspace, and mechanical room environments
• Air-Tite design reduces leakage at the trunk connection point
• Meets ACCA and SMACNA applicable standards for duct construction and installation

Compatibility

Designed as an OEM-style sheet metal fitting for use in residential and light commercial forced-air trunk-and-branch duct systems requiring a 16-inch diameter takeoff with damper.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal mechanic in accordance with SMACNA duct construction standards and local mechanical codes. Shut down and lock out the air handler or furnace before cutting into the trunk duct or securing the takeoff. Seal all connections with listed duct sealant or mastic per ACCA and local energy code requirements. Do not overtighten sheet metal screws at the collar, as this can distort the fitting and compromise the air seal.

Technical Specifications

• Diameter: 16 inches
• Material: Hot Dip Galvanized Steel
• Type: Air-Tite Duct Takeoff
• Inclusions: Integrated Damper
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: ATD_16IN