Southwark Metal 52_5X4X4 Flue Wye 5x4x4 in Sheet Metal

Product Description

The SOUTHWARK METAL 52_5X4X4 is a hot-dip galvanized sheet metal flue wye designed for branching round duct and flue pipe runs in HVAC and ventilation systems. Built to a 5-inch by 4-inch by 4-inch configuration, this fitting splits or combines airflow between three duct legs while maintaining a sealed, corrosion-resistant connection. The hot-dip galvanizing process coats the steel inside and out, making it suitable for exhaust, combustion vent, and general air distribution applications. HVAC sheet metal mechanics and installers use this fitting in both new construction and retrofit duct work where a reliable wye branch is required.

This fitting is suited for residential and light commercial duct systems where round pipe branches off a main trunk or where two branch runs merge into a single outlet. Typical applications include supply and return air distribution, combustion flue venting, and draft-hood connector runs. It is fabricated to meet ACCA and SMACNA standards, which are the primary industry references governing sheet metal duct construction and installation. The 5-inch main with dual 4-inch branches covers a common size pairing found in forced-air furnace and air handler installations.

Key Features

• Hot-dip galvanized steel construction for corrosion resistance in duct and flue applications
• 5-inch by 4-inch by 4-inch wye configuration for branching or combining round duct runs
• Fabricated to ACCA and SMACNA applicable standards
• Sheet metal construction suitable for combustion vent and general HVAC air distribution
• Three-leg wye geometry allows airflow splitting or merging without sharp directional loss

Compatibility

Designed as an OEM-style sheet metal wye fitting for round duct and flue pipe systems requiring a 5-inch main outlet and dual 4-inch branch connections, conforming to ACCA and SMACNA construction standards.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal mechanic in accordance with SMACNA duct construction standards and any applicable local mechanical codes. Shut down the air handling equipment and, where flue or combustion vent service is involved, confirm the appliance is off and cooled before disturbing any duct connections. Secure joints with sheet metal screws and listed duct sealant or UL 181-listed tape as required by the application and local authority. Do not use this fitting beyond its rated duct or flue application without verifying local code acceptance.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Main Size: 5 inches
• Branch Size: 4 inches x 4 inches
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 52_5X4X4