Products

Precision Spiral Systems: High-Quality Spiral Duct & Fittings

Cleveland-based manufacturer specializing in high-quality spiral ductwork and fittings, proudly crafted with union labor and 100% U.S.-sourced steel.

Spiral Duct 4″ – 60″ Single & Double Wall, Reducers, Taps, Gored Elbows, Couplers, Gasketed or Non-Gasketed Pipe & Fittings.

ALL DUCTWORK IS FABRICATED PER SMACNA STANDARDS AND
PROJECT SPECIFICATIONS.

Single Wall Spiral W/Gasketed Fittings

All spiral duct (all gauges and diameters) shall be manufactured with a spiral seam.

Steel fittings from 24 gauge to 20 gauge:

Steel fittings from 18 gauge to 16 gauge:

Longitudinal seams to be fully welded and sealed.

Transverse seams to be tack welded and sealed.

  • Transverse seams to be fabricated using Gorelock technology.
  • Longitudinal seams to be stitch welded for strength and durability.
Single Wall Spiral W/ Non-Gasketed Fittings

General Pipe Construction: All gauge and diameter pipe: Must be spiral seam.

Steel Fittings:

24 to 20 Gauge:

  • Transverse seam: Must be Gorelock.
  • Longitudinal seam: Must be stitch welded.

18 to 16 Gauge:

  • Longitudinal seam: Must be fully welded and sealed.
  • Transverse seam: Must be tack welded and sealed.

Aluminum Fittings:

50” and Smaller:

  • Transverse seam: Must be Gorelock.
  • Longitudinal seam: Must be button lock.
    (Note: There’s a repeated line saying “tack welded and sealed longitudinal seam” — possibly redundant or indicating an alternative method.)

52” and Larger:

  • Transverse seam: Must be button lock.
Double Wall Spiral

Duct & Fittings Fabrication Requirements

Duct Pipe:

  • All gauges and diameters of pipe shall be fabricated with a spiral seam.

Steel Fittings – 24 Gauge to 20 Gauge:

  • Transverse seams shall be Gorelock.
  • Longitudinal seams shall be stitch welded.

Steel Fittings – 18 Gauge to 16 Gauge:

Longitudinal seams shall be fully welded and sealed.

Transverse seams shall be tack welded and sealed.