Rectangular Duct Systems
Rectangular Ventilation Duct Systems are engineered for the efficient transport and distribution of conditioned air in central HVAC, fresh air supply, exhaust extraction, and emergency smoke control networks. Fabricated from premium galvanized steel, stainless steel, or aluminum sheets on automated CNC roll-forming lines, these ducts maximize space utilization in tight ceiling voids and vertical mechanical shafts.
Featuring integrated or slide-on flange connection profiles, heavy-duty corner corners, and specialized sealant technologies, the system guarantees high airtightness classes (Class A, B, C) compliant with EN 1507 and SMACNA standards. Engineered cross-brake stiffeners eliminate casing flutter, prevent structural deformation under high static pressures, and minimize acoustic transmission.
Key Features
- Premium Raw Materials: 0.50 mm - 1.20 mm high-grade hot-dip galvanized steel, stainless steel (AISI 304/316), or aluminum sheet
- High Airtightness: Certified compliance with EN 1507 and SMACNA airtightness Class B & C standards
- Rigid Flange Connections: Integrated flange or 20/25/30/35 mm slide-on flange profiles with reinforced corner brackets
- Anti-Vibration Stiffening: Automated cross-brake stiffeners minimizing sheet vibration and turbulence noise
- Insulation Compatibility: Seamlessly insulated internally or externally with elastomeric rubber or mineral wool
- Modular Fitting Range: Comprehensive portfolio of bends, transitions, offsets, and plenums for rapid jobsite assembly
Application Fields
- Shopping malls, corporate office towers, luxury hotels, and residential complexes
- Hospitals, cleanrooms, and hygienic air handling unit distribution lines
- Industrial manufacturing facilities, automotive plants, and food processing lines
- Enclosed car park smoke exhaust networks and stairwell pressurization shafts
- All mechanical HVAC installations requiring high airflow handling in low-clearance ceiling spaces
