Southwark Metal SL60-26GA_18IN Round Pipe 26GA 18in

Product Description

The Southwark Metal SL60-26GA_18IN is a round, snap-lock galvanized sheet metal pipe section used in low-pressure forced-air duct systems. Fabricated from hot-dip galvanized steel at 26 gauge, it measures 18 inches in diameter and 60 inches in length. The snap-lock seam allows for fast field assembly without requiring additional fasteners at the longitudinal joint. HVAC sheet metal mechanics use this pipe in trunk-and-branch and radial duct layouts for residential and light commercial supply and return air distribution. It meets ACCA and SMACNA standards for fabrication and installation.

This pipe section is suited for new construction and retrofit duct installations where a full 60-inch straight run is needed at the 18-inch diameter. It fits into standard SMACNA-compliant duct systems using compatible elbows, tees, reducers, and collars. The hot-dip galvanized finish resists corrosion in conditioned spaces and in unconditioned areas such as attics, crawlspaces, and mechanical rooms where ambient moisture levels are moderate.

Key Features

• Snap-lock seam construction for fast, tool-minimal longitudinal joint closure
• Hot-dip galvanized steel provides corrosion resistance in typical duct environments
• 26 gauge material thickness meets SMACNA standards for this diameter range
• 60-inch length reduces the number of joints needed in long straight runs
• Compliant with ACCA and SMACNA applicable standards
• Round profile supports balanced airflow and easy transition to fittings

Compatibility

Designed for use in ACCA- and SMACNA-compliant round duct systems requiring 18-inch diameter straight pipe sections. Compatible with standard snap-lock and slip-fit round duct fittings of the same diameter.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal mechanic following SMACNA duct construction standards and local mechanical codes. Secure pipe sections with sheet metal screws at drive-cleats or slip collars and seal all joints with listed duct sealant or pressure-sensitive foil tape rated for HVAC duct systems. Support spacing should conform to SMACNA hanger and support guidelines for the diameter and gauge. Always de-energize air-handling equipment before working on connected duct sections.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Diameter: 18 inches
• Length: 60 inches
• Gauge: 26 GA
• End Type: Snap-Lock
• Type: Round
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: Southwark Metal
• Manufacturer Part Number: SL60-26GA_18IN