Southwark Metal 58_10X8 Sheet Metal Pipe Reducer 10x8

Product Description

The SOUTHWARK METAL 58_10X8 is a 3-piece sheet metal pipe reducer designed to transition round duct from a 10-inch diameter down to an 8-inch diameter in forced-air HVAC systems. Fabricated from hot dip galvanized steel, this reducer resists corrosion in both supply and return duct applications. The no-crimp design allows the installer to connect adjacent fittings and duct sections without a pre-formed bead, giving flexibility in system assembly. It meets ACCA and SMACNA standards, making it appropriate for commercial and residential ductwork installations where code-compliant fittings are required.

This reducer is used in trunk-and-branch and radial duct systems where airflow must be stepped down between duct segments. Typical applications include reducing main trunk lines to branch takeoffs, transitioning between supply plenum outlets and smaller runs, and balancing static pressure across distribution systems. Sheet metal contractors and HVAC installers specify this fitting for new construction and retrofit projects where galvanized steel ductwork is required by specification or local code.

Key Features

• Transitions 10-inch diameter duct to 8-inch diameter in a single fitting
• Hot dip galvanized steel construction for corrosion resistance in duct environments
• 3-piece fabrication for dimensional accuracy and consistent fitment
• No-crimp ends allow flexible connection to adjacent fittings and straight duct
• Meets ACCA and SMACNA applicable standards for duct construction

Compatibility

Designed as an OEM-style replacement and new-installation fitting for residential and commercial round galvanized steel duct systems requiring a 10-inch to 8-inch diameter reduction.

Installation Notes

Installation is typically performed by licensed sheet metal contractors or HVAC technicians. Shut down the air handling unit and isolate the duct section before cutting into existing ductwork. Secure connections with sheet metal screws and seal all joints with UL 181-rated mastic or foil tape per SMACNA guidelines. Follow local mechanical code requirements for duct support spacing and clearances.

Technical Specifications

• Larger End Size: 10 inches diameter
• Smaller End Size: 8 inches diameter
• Material: Hot Dip Galvanized Steel
• Type: 3-Piece
• Crimp Supplied: No
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 58_10X8