Southwark Metal 781088a Wye Branch 10x8x8 in

Product Description

The SOUTHWARK METAL 781088a is a wye branch fitting used in sheet metal ductwork systems to divide a single duct run into two equal branches. This fitting splits airflow in two directions while maintaining air velocity and minimizing pressure drop across the junction. Licensed HVAC technicians and sheet metal mechanics install wye branches during new construction trunk-and-branch duct installations and during duct modifications where balanced airflow distribution is required. The trunk inlet measures 10 inches and both branch outlets measure 8 inches, making this fitting suited for balanced supply distribution in residential and light commercial forced-air systems.

This wye branch is used in forced-air HVAC supply duct systems where a single trunk line must be divided into two branch runs of equal size. The equal 8-inch outlet dimensions make it appropriate for applications where symmetric airflow is needed across two zones or two supply runs. It is installed as a fixed fitting in sheet metal duct assemblies and is typically sealed with mastic or foil tape per system design requirements.

Key Features

• Equal dual-outlet design splits airflow evenly into two 8-inch branches from a 10-inch trunk
• Wye geometry preserves air velocity and reduces turbulence compared to sharp tee fittings
• Designed for sheet metal duct system integration in forced-air HVAC applications
• Sold individually as a single fitting unit

Compatibility

Comparable to Southwark Metal Item 781088 and Snappy Item 720-1088. Designed as an OEM-style replacement or equivalent fitting for standard 10-inch by 8-inch by 8-inch wye branch applications in sheet metal supply duct systems.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal mechanics. Power down the air handling system before modifying ductwork. Seal all joints with duct mastic or listed foil tape per local mechanical codes and SMACNA guidelines to maintain system efficiency. Do not use this fitting on return-air systems unless the duct design specifically calls for a wye configuration on the return side.

Technical Specifications

• Fitting Type: Wye Branch
• Inlet Size: 10 inches
• Outlet Size (each): 8 inches
• Unit of Measure: Each

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 781088a