Galvanized Spiral Duct: Engineered for Superior Airflow Control
Superior Durability
- Hot-dip galvanized coating (Z275 standard) resists corrosion, extending lifespan to 25+ years even in harsh environments (e.g., coastal areas, chemical plants).
Optimal Airflow Efficiency
- Spiral-wound design reduces turbulence, achieving 15% lower pressure drop compared to rectangular ducts (SMACNA-tested).
Lightweight & Easy Installation
- Lock-seam joints enable tool-free assembly, cutting labor costs by 30%. Modular fittings (elbows, reducers) simplify retrofits.
Fire & Hygiene Compliance
- Meets EN 13501-1 fire ratings and ISO 14644 cleanroom standards for hospitals/labs.
Smart-Ready
- IoT sensor compatibility (pressure/temperature) for real-time HVAC monitoring via BIM integration.
Cost-Effective Maintenance
- Smooth interior surface minimizes dust accumulation, reducing cleaning frequency by 50%.
Applications
- HVAC Systems: Ideal for commercial buildings, hospitals, and cleanrooms.
- Industrial Ventilation: Handles corrosive fumes in factories/labs (e.g., chemical plants).
- Fire-Rated Systems: Paired with fireproof insulation for smoke extraction.
Engineering Solutions
- Seamless Construction: Spiral lock-seam technology eliminates leakage points.
- Galvanized Coating: Zinc layer (≥Z275 grade) resists rust in humid environments.
- Modular Fittings: Pre-fabricated elbows/reducers reduce installation time by 40%.

Advanced Technical Parameters
| Parameter | Specification | Standard |
|---|---|---|
| Diameter Range | 80–2000 mm | SMACNA |
| Pressure Rating | ≤2500 Pa | EN 12237 |
| Thickness | 0.5–1.2 mm | ASTM A653 |
| Temperature Range | -30°C to +120°C | ISO 9001 |
Smart Functionality
- IoT Sensors: Optional airflow/pressure monitors for real-time system analytics.
- BIM Integration: 3D models (Revit/DWG) available for precision planning.
Technical Notes
- Installation Tip: Use neoprene gaskets at joints to prevent vibration noise.
- Maintenance Alert: Inspect every 5 years in high-humidity zones.
Why Choose Us?
- Certified Durability: Independently tested to exceed SMACNA/EN standards.
- Custom Fabrication: Laser-cut flanges for perfect alignment.
- Global Logistics: 15-day lead time for bulk orders, with on-site support.







