Forged for the harshest conditions. Our corrugated spiral duct delivers 20% more strength than smooth-wall systems — with superior airflow, airtight seams, and industrial-grade galvanized steel built to outlast the job.
Our Corrugated Spiral Pipe is precision-engineered for environments that demand more. The corrugated profile dramatically increases radial stiffness and resistance to external pressure — delivering structural integrity that smooth-wall duct simply cannot match.
Fabricated from premium galvanized steel with 90 GSM zinc coating, every section is manufactured to exact tolerances. Whether you're running exposed ductwork in a warehouse, an underground ventilation run, or a high-pressure exhaust system, this duct performs without compromise.
Every detail is intentional — from the corrugation pitch that adds stiffness, to the locked spiral seam that eliminates air loss and keeps your system running at peak efficiency.
The corrugated profile enhances radial stiffness and load-bearing capacity — up to 20% stronger than equivalent smooth-wall pipe of the same gauge, with no added weight.
Premium galvanized steel with 90 GSM zinc coating provides exceptional resistance to rust, moisture, and harsh environmental conditions for decades of service life.
Optimized internal geometry delivers consistent, efficient airflow with reduced friction loss — keeping pressure drop minimal across the entire run for maximum system efficiency.
Lightweight yet rigid sections with precise end tolerances connect quickly and securely, reducing labor time and total installation cost on every project.
Available in 4" to 22" diameters in 5 ft and 10 ft standard lengths. Non-standard dimensions and configurations manufactured to your exact project specifications.
The corrugated structure provides exceptional collapse resistance under negative pressure — making it the definitive choice for exhaust, dust extraction, and vacuum systems.
| Diameter | Gauge | Length | Zinc |
|---|---|---|---|
| 4" | 20, 22, 24, 26 | 5 / 10 ft | 90 GSM |
| 5" | 20, 22, 24, 26 | 5 / 10 ft | 90 GSM |
| 6" | 20, 22, 24, 26 | 5 / 10 ft | 90 GSM |
| 7" | 20, 22, 24, 26 | 5 / 10 ft | 90 GSM |
| 8" | 20, 22, 24, 26 | 5 / 10 ft | 90 GSM |
| 10" | 20, 22, 24, 26 | 5 / 10 ft | 90 GSM |
| 12" | 20, 22, 24, 26 | 5 / 10 ft | 90 GSM |
| 14"–22" | 20, 22, 24, 26 | 5 / 10 ft | 90 GSM |
Corrugated spiral pipe outperforms longitudinal and smooth-wall alternatives in rigidity and load resistance at the same gauge.
Precision-locked spiral seams prevent air escape, improving system efficiency and cutting energy costs over the installation's lifetime.
20, 22, 24, and 26 gauge options with 90-grade steel and 90 GSM zinc coating. Built to outlast any competitor on the market.
Non-standard sizes and configurations made to spec. Send us your project drawings for a fast, accurate custom quote.
Ideal for large-scale heating, ventilation, and air conditioning in office buildings, schools, hospitals, and retail spaces.
The corrugated structure handles high-velocity dust-laden air and negative pressure without collapse or deformation.
Factories, plants, and warehouses requiring robust exhaust ducting that holds up to demanding conditions day after day.
Enhanced rigidity makes corrugated spiral duct suitable for buried runs where smooth-wall duct risks deformation over time.
Precise airflow control and airtight seams for controlled environments requiring ultra-consistent performance standards.
Withstands positive and negative pressure extremes — the definitive choice for spray booths, welding booths, and blower stacks.
Industry-leading spiral pipe fabrication machinery ensures every piece meets tight dimensional tolerances and consistent quality standards.
Located at 2531 Mathews Ave, Memphis TN — our central location means fast turnaround and affordable shipping across the region.
Non-standard sizes, custom gauges, and specialty configurations. Send us your specs and we'll manufacture it right the first time.
Contractors, HVAC engineers, and facility managers across Tennessee rely on SIDCO for consistent quality and on-time fulfillment.
Get in touch with our team to discuss sizing, quantities, and custom fabrication requirements. Fast quotes. Expert advice. Precision manufacturing.
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