Southwark Metal 84ST_1-1/2X10 Ductboard Collar Tap 10 Inch

Product Description

The SOUTHWARK METAL 84ST_1-1/2X10 is a sheet metal ductboard collar tap used to create branch takeoffs in fibrous glass ductboard HVAC systems. Constructed from hot dip galvanized steel, this 10-inch collar features a 1-1/2-inch tab that seats firmly against the ductboard surface, forming a secure mechanical connection at the penetration point. The galvanized finish resists corrosion in both conditioned and unconditioned spaces. HVAC installers use this fitting when transitioning from a ductboard trunk to a round or flexible branch run, maintaining system integrity and minimizing air leakage at the junction.

This collar tap is suited for residential and light commercial forced-air distribution systems where fibrous glass ductboard is used as the primary trunk or plenum material. The 10-inch diameter accommodates high-volume branch runs off a main ductboard section. Installers working in attics, crawlspaces, and mechanical rooms will find this fitting appropriate for new construction and retrofit applications where ductboard is the specified distribution medium. It conforms to ACCA and SMACNA standards applicable to sheet metal duct fittings.

Key Features

• 10-inch diameter collar sized for high-volume branch takeoff applications
• 1-1/2-inch tab provides positive seating and mechanical support against ductboard face
• Hot dip galvanized steel construction resists corrosion in humid or unconditioned environments
• Meets ACCA and SMACNA applicable standards for sheet metal duct fittings
• Compatible with round and flexible branch duct connections at the collar end

Compatibility

Designed as an OEM-style replacement and new-installation fitting for fibrous glass ductboard HVAC distribution systems requiring a round collar tap connection.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal workers. Power down the air handling unit and relieve any system pressure before cutting into the ductboard trunk. The 1-1/2-inch tab should be seated flush against the ductboard surface and secured with approved duct adhesive and foil tape in accordance with SMACNA and local mechanical code requirements. Do not use this fitting as a structural support for branch duct runs without independent hanger support.

Technical Specifications

• Size: 10 inches
• Tab Size: 1-1/2 inches
• Material: Hot Dip Galvanized Steel
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 84ST_1-1/2X10