Tube 400Ø 1.2m 22g Galvanised
Manufactured 2-3 Days
Description
Round Galvanized Sheet Metal Duct – 400mm Ø x 1.2m
The Round Galvanized Sheet Metal Duct is a strong and efficient solution for distributing air in HVAC systems. Made from high-quality 22 gauge galvanized steel, it provides durability, corrosion resistance, and long-term performance.
Each duct section is swaged (big end/small end) for easy, secure connection to consecutive duct pieces, sheet metal fittings, or flexible duct, ensuring a tight and reliable joint.
Features
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Diameter: 400mm, Length: 1.2m
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Round profile for efficient airflow distribution
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Material: 22 gauge galvanized steel for strength and corrosion resistance
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Swaged ends (big end/small end) for simple, secure joining
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Suitable for commercial, industrial, and residential HVAC systems
Estimated Airflow – 400mm Ø Duct
| Air Velocity (m/s) | Airflow (L/s) |
|---|---|
| 1.5 | 188 |
| 3 | 377 |
| 5 | 628 |
| 7 | 880 |
| 8 | 1005 |
Notes:
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Calculations based on duct cross-sectional area: 0.12566 m²
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Actual airflow depends on fan capacity, system design, and pressure losses
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