Southwark Metal SP10-24GA_20IN Spiral Pipe 24 Gauge 20 in

Product Description

The SOUTHWARK METAL SP10-24GA_20IN is a hot-dip galvanized steel spiral pipe section used in low- and medium-pressure HVAC duct distribution systems. It measures 20 inches in diameter and 10 feet in length, fabricated from 24-gauge galvanized steel for corrosion resistance and structural rigidity in both supply and return air applications. The spiral-lock seam construction reinforces the pipe wall, reducing the need for internal bracing at standard duct velocities. Sheet metal contractors and HVAC installers use this pipe section as a primary trunk or branch run component in commercial and residential forced-air systems.

This spiral pipe is suited for round duct systems in light commercial and residential HVAC installations where consistent diameter, gauge, and seam integrity are required across the duct run. The 20-inch diameter makes it appropriate for high-volume trunk applications feeding multiple branch takeoffs. Fabricated to SMACNA and ACCA standards, it integrates directly with standard fittings, collars, and flanges designed to those specifications.

Key Features

• Hot-dip galvanized steel construction provides corrosion resistance for long-term duct system performance
• 24-gauge material thickness meets SMACNA and ACCA standards for round spiral duct fabrication
• Spiral-lock seam adds rigidity to the pipe wall without additional internal support
• 20-inch diameter suits high-volume trunk line applications in forced-air systems
• 10-foot section length reduces the number of joints needed per linear run

Compatibility

Fabricated to ACCA and SMACNA standards for round spiral duct systems. Compatible with standard 20-inch round duct fittings, collars, end caps, and flanges manufactured to the same specifications.

Installation Notes

Sheet metal contractors should install round spiral pipe in accordance with SMACNA Duct Construction Standards and local mechanical codes. Secure sections with sheet metal screws and seal all joints with UL 181-listed tape or mastic before insulating. Support hangers should be spaced per SMACNA guidelines for the pipe diameter and gauge. Always power down and lock out the air handling unit before making connections to an active duct system.

Technical Specifications

• Type: Spiral Pipe
• Diameter: 20 inches
• Length: 10 feet
• Material Thickness: 24 Gauge
• Material: Hot-Dip Galvanized Steel
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: SP10-24GA_20IN