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Product Overview

Composite duct flange is a professional connecting fitting specially designed for composite air duct systems. It is commonly manufactured from galvanized steel, aluminum alloy, and fire-resistant plastic. The main types include integrated flange, snap-in flange, and corner assembly flange.

With lightweight structure, excellent fire resistance, moisture-proof performance and superior air tightness, our duct flanges are fully compatible with PIR, phenolic, fiberglass, magnesium oxysulfide and all other types of composite ducts. We provide standard flange thickness options of 2cm, 2.5cm, 3cm and 4cm, and support customized size production according to customer project requirements. They are widely used in HVAC ventilation and fire smoke exhaust systems for various construction projects.

Main Functions & Uses

1. Duct Connection Firmly connects multiple duct sections to form a complete and stable ventilation pipeline system.

2. Air Leakage SealingMatched with sealing gaskets, it effectively prevents air leakage and improves the overall operating efficiency of the air conditioning and ventilation system.
3. Structural ReinforcementGreatly strengthens the rigidity of duct joints, avoiding duct deformation, loosening and vibration during long-term operation.
4. Equipment ConnectionRealizes standard connection between ducts and fans, air valves, elbows, tees and other ventilation accessories and equipment.
5. Easy Maintenance & InstallationModular and standardized design enables fast installation, convenient disassembly, inspection and later pipeline renovation.
6. Fire Safety ComplianceFire-rated flange versions meet international fire protection standards, suitable for formal fire smoke exhaust engineering projects.

Application Scenarios

Widely applied in shopping malls, office buildings, hotels, industrial factories and all kinds of commercial and public building ventilation & smoke exhaust systems.