Southwark Metal 13_8X8 Trunk Duct Angle 8x8 45 Degree

Product Description

The SOUTHWARK METAL 13_8X8 is a sheet metal trunk duct angle designed for directional transitions in forced-air duct systems. Constructed from hot dip galvanized steel, this fitting delivers a 45-degree angle change in rectangular trunk duct runs. The Broadway-style flat design features a radius throat, which reduces turbulence and pressure drop at the transition point. It is sized at 8 inches x 8 inches on both the inlet and outlet, making it a same-size fitting suited for maintaining consistent duct cross-section through the turn. Licensed HVAC sheet metal installers and ductwork fabricators are the typical trades installing this component.

This trunk duct angle is used in residential and light commercial forced-air HVAC systems where rectangular sheet metal ductwork requires a 45-degree directional change without a reduction in duct size. The Broadway flat configuration with radius throat is a standard fitting type in trunk-and-branch duct layouts. It is appropriate for supply or return trunk duct applications where maintaining airflow efficiency through the bend is a priority. Both new construction and retrofit duct system installations are common use cases.

Key Features

• 45-degree angle for directional trunk duct transitions
• Broadway flat style with radius throat reduces turbulence and pressure loss
• Hot dip galvanized steel construction for corrosion resistance
• Same-size 8 inches x 8 inches inlet and outlet — no reduction in duct cross-section
• Meets ACCA and SMACNA applicable standards

Compatibility

Designed as an OEM-style sheet metal fitting for rectangular trunk duct systems. Compatible with standard 8 inches x 8 inches rectangular sheet metal ductwork as specified under ACCA and SMACNA standards.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal installer in accordance with SMACNA duct construction standards and local mechanical codes. The duct system should be fully de-energized and the air handler shut down before any ductwork modifications are made. Secure all connections with appropriate sheet metal screws and seal joints with listed duct sealant or mastic per local code requirements. Do not exceed the system's design static pressure rating for the duct class used.

Technical Specifications

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

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 13_8X8