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The SOUTHWARK METAL SPCON-24GA_16IN is a 16-inch sheet metal spiral pipe connector coupling fabricated from hot dip galvanized steel at 24 gauge material thickness. It is designed to join sections of round spiral duct in low-pressure HVAC air distribution systems. The galvanized coating provides corrosion resistance suited for both supply and return duct applications. HVAC sheet metal mechanics and duct installers use this coupling during new construction and retrofit ductwork projects where secure, airtight connections between spiral duct sections are required.
This coupling is appropriate for commercial and residential HVAC installations using 16-inch round spiral duct. It fits into typical forced-air system trunk and branch configurations where consistent duct diameter and structural integrity are critical to maintaining designed airflow performance. Its 24-gauge construction meets commonly referenced SMACNA and ACCA sheet metal ductwork standards for round spiral duct fabrication and installation.
Designed as an OEM-style coupling for use with 16-inch round spiral ductwork in residential and commercial HVAC air distribution systems meeting SMACNA and ACCA standards.
Installation should be performed by a qualified HVAC sheet metal mechanic or licensed mechanical contractor. Shut down and de-energize the air handling system before connecting or modifying ductwork. Slip the coupling evenly over the ends of adjoining duct sections, secure with sheet metal screws at the overlapping collar, and seal all joints with UL 181-listed foil tape or mastic sealant per applicable mechanical codes. Reference SMACNA duct construction standards and local mechanical code requirements for sealing class and fastener spacing.
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