



BromingHvac introduces an advanced design approach for Double Wall Rectangular Ducts, incorporating cutting-edge manufacturing techniques that ensure the consistent quality and optimal performance of your HVAC systems.
Key Features:
Overall, BromingHvac’s Double Wall Rectangular Ducts are a high-performance, versatile solution for HVAC systems, offering manufacturers and installers a reliable, energy-efficient option to improve air quality and streamline system operations. These advanced features help you achieve superior performance and remain competitive in today’s evolving market.
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| Inner Wall | Galvanized Steel , Aluminum, or Stainless Steel |
|---|---|
| Outer Wall | Galvanized Steel , Aluminum, or Stainless Steel |
| Insulation | Glass wool / rock wool / foam board |
| Insulation Thickness | 25–50 mm (optional) |
| Sheet Thickness | 0.5–1.2 mm (per layer) |
| Connection Type | TDC / TDF / Flange / Slip Joint |
| Standard Length | 1000–1500 mm per section |
| Leakage Class | SMACNA Class 3 or higher |
| Standards | SMACNA / DW144 / ISO 9001 |

Frequently Asked Questions