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A main route must carry air from several branch networks.
The broad circular passage accommodates trunk-scale cross-sectional requirements.
STJH-SPIRAL-GALVANIZED-STEEL-DUCT-DN800
Spiral Galvanized Steel Duct DN800
Large galvanized spiral trunk for high-volume air distribution.
- Large bore serves trunk-scale ventilation layouts.
- Heavy-gauge shell is distinct from small branch construction.
Product Introduction
An 800 mm circular shell forms a broad main air route through plant spaces. The heavier wall accommodates the larger diameter, while the spirally formed structure provides a continuous metal passage suited to central supply or return distribution.
Key Features
- Large bore serves trunk-scale ventilation layouts.
- Heavy-gauge shell is distinct from small branch construction.
Technical Parameters
| Nominal Bore | 800 mm |
|---|---|
| Wall Gauge | 0.8 mm |
| Factory Length | 3000 mm |
| Metal | Galvanized steel |
| Approximate Weight | 18.33 kg/m |
| Duct Shape | Circular |
| Fabrication | Spiral seam |
| Wall System | Single-wall, uninsulated |
| Joint Interface | Large circular duct fittings |
| Customization | Available for the intended main duct route and environment. |
Applications
- Central return-air trunks
- Large supply routes in mechanical galleries
Solutions for Your Application
Handling weight must be considered for large duct sections.
The stated mass per metre helps plan lifting and supports for the selected gauge.
Available Options
- Segmented elbows
- Insulation and external jacketing
Planning a Spiral Galvanized Steel Duct DN800 specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
