Southwark Metal SP10-26GA_12IN Spiral Pipe 26GA 12in

Product Description

The SOUTHWARK METAL SP10-26GA_12IN is a 12-inch diameter, 10-foot length spiral seam sheet metal pipe fabricated from hot dip galvanized steel at 26 gauge. It is designed for low-pressure supply and return air distribution in commercial and residential HVAC duct systems. The spiral lock seam construction provides rigidity and consistent roundness along the full length of the pipe. Licensed sheet metal contractors and HVAC technicians install this pipe as part of trunk-and-branch or radial duct layouts. The hot dip galvanized finish delivers corrosion resistance suitable for both conditioned and unconditioned space applications.

This pipe is used in forced-air heating and cooling systems where round spiral duct is specified. It is a standard component in low-pressure air handling installations in light commercial buildings, warehouses, retail spaces, and residential new construction or renovation projects. The 12-inch diameter accommodates higher-volume branch or main trunk runs. Fabrication and installation of this product is governed by ACCA and SMACNA standards, which dictate gauge selection, joint reinforcement, hanging spacing, and pressure class requirements for sheet metal ductwork.

Key Features

• 26 gauge hot dip galvanized steel construction for corrosion resistance and structural integrity
• 12-inch diameter accommodates high-volume air distribution runs
• 10-foot nominal length reduces the number of joints required per run
• Spiral lock seam provides consistent roundness and added rigidity without additional stiffeners
• Fabricated to ACCA and SMACNA applicable standards for low-pressure duct systems

Compatibility

Designed for use in ACCA- and SMACNA-compliant round spiral duct systems. Accepts standard 12-inch slip, drive, or beaded-end fittings typical of low-pressure sheet metal ductwork installations.

Installation Notes

Installation must be performed by a licensed sheet metal contractor or qualified HVAC technician in accordance with SMACNA Duct Construction Standards and local mechanical codes. Shut down the air handling unit and de-energize associated electrical controls before cutting into or joining existing ductwork. Joints should be secured with sheet metal screws and sealed with UL 181-listed mastic or foil tape per code requirements. Support spacing and hanging hardware must conform to SMACNA hanger and support guidelines for the applicable pressure class.

Technical Specifications

• Type: Spiral Seam Pipe
• Diameter: 12 inches
• Length: 10 feet
• Material: Hot Dip Galvanized Steel
• Material Thickness: 26 Gauge
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: SP10-26GA_12IN