Southwark Metal 15_16X8 Trunk Duct Angle 16x8 Shortway 45 Degree

Product Description

The SOUTHWARK METAL 15_16X8 is a 45-degree shortway trunk duct angle fitting used in forced-air HVAC duct systems. Fabricated from hot-dip galvanized steel, this fitting provides a vertical, radius-throat turn in rectangular sheet metal ductwork at a 16-inch by 8-inch cross section on both the inlet and outlet. The radius throat design reduces turbulence and pressure drop through the turn compared to square-throat fittings. HVAC sheet metal mechanics and duct installers use this type of fitting when a duct run must change direction within tight horizontal clearances on the short dimension of the duct.

This fitting is suited for residential and light commercial forced-air heating and cooling duct systems where rectangular trunk ductwork requires a 45-degree direction change. The shortway orientation means the turn is made across the narrow (8-inch) dimension of the duct, keeping the overall installed depth of the elbow compact. Both the inlet and outlet maintain a consistent 16 x 8 inch frame size, making it a straight-transition fitting with no size reduction through the turn.

Key Features

• 45-degree angle allows directional change in trunk duct runs with minimal pressure loss
• Shortway, vertical, radius-throat construction reduces airflow turbulence through the turn
• Hot-dip galvanized steel construction resists corrosion in unconditioned or semi-conditioned spaces
• Consistent 16 x 8 inch frame size on both ends — no transition required
• Meets ACCA and SMACNA applicable standards for duct fabrication and system design

Compatibility

Designed as an OEM-style sheet metal fitting for rectangular trunk duct systems with a 16 x 8 inch duct cross section requiring a 45-degree shortway angle change.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal mechanics in accordance with SMACNA duct construction standards and applicable local mechanical codes. Shut down the air handling system and lock out the equipment before connecting or modifying any ductwork sections. Secure all joints with sheet metal screws and seal with UL 181-listed mastic or foil tape as required by code. Verify duct alignment and support spacing per SMACNA guidelines after installation.

Technical Specifications

• Angle: 45 degrees
• Type: Shortway, Vertical, Radius Throat
• Frame Size: 16 x 8 inches
• Size A: 16 x 8 inches
• Size B: 16 x 8 inches
• Material: Hot Dip Galvanized Steel
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 15_16X8