Southwark Metal 15_12X8 Trunk Duct Angle 12x8 45 Degree

Product Description

The SOUTHWARK METAL 15_12X8 is a sheet metal trunk duct angle fitting used in forced-air HVAC duct systems. It is fabricated from hot dip galvanized steel and provides a 45-degree directional change in a rectangular trunk duct run. The shortway orientation with a vertical, radius throat configuration minimizes turbulence and static pressure loss at the turn. At 12 inches by 8 inches on both the inlet and outlet, this fitting maintains a consistent duct cross-section through the transition. HVAC sheet metal installers and duct fabricators rely on this type of fitting to route trunk lines around structural framing or change duct direction within a mechanical space.

This fitting is suited for residential and light commercial forced-air heating and cooling duct systems where rectangular trunk duct is run in attics, crawlspaces, basements, or mechanical rooms. The shortway design is selected when available depth along the minor dimension is limited. The radius throat reduces flow separation at the heel of the turn compared to a square-throat fitting, supporting efficient air distribution through the duct system. Installation should follow ACCA and SMACNA standards for rectangular duct fabrication and layout.

Key Features

• 45-degree angle provides a moderate directional change while maintaining airflow efficiency
• Shortway orientation suits installations with limited clearance along the 8-inch dimension
• Vertical, radius throat design reduces turbulence and static pressure loss at the turn
• Hot dip galvanized steel construction resists corrosion in typical mechanical space environments
• Consistent 12 inch by 8 inch cross-section on both ends maintains trunk duct sizing through the fitting
• Fabricated to ACCA and SMACNA applicable standards for commercial and residential duct systems

Compatibility

Designed as an OEM-style replacement and new-construction fitting for rectangular sheet metal trunk duct systems using 12 inch by 8 inch duct sections.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal duct installers. The duct system should be de-energized and the air handler or furnace shut down before any duct modification or fitting installation. Connections should be sealed with UL-listed duct sealant or approved foil tape and fastened per SMACNA rectangular duct construction standards. Support hangers should be installed in accordance with local mechanical codes to prevent sagging at the fitting.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Angle: 45 degrees
• Type: Shortway, Vertical, Radius Throat
• Size A: 12 inches x 8 inches
• Size B: 12 inches x 8 inches
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 15_12X8