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delta duct FD4 pre insulated duct panels and accessories incube holding srilanka

Delta Duct FD4 – Metalized Core Flexible Duct

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Applications: Energy-Efficient Enterprise Buildings, Industrial Ventilation. Key Features: Double-layer Metalized PET & Clear Polyester Core for Enhanced Reflection. Compliance: Superior Thermal Vapor Barrier, Maintenance-Free Air Routing.

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Delta Duct FD4 is an upgraded insulated flexible duct featuring an enhanced inner core for improved thermal reflection. While it shares the same durable metalized PET outer jacket as the FD3, its inner core is constructed from a double layer of metalized PET and clear polyester. This construction, combined with high-quality fiberglass insulation, provides a robust barrier against heat gain and air leakage.

Real-World Applications

  • Energy-Efficient Buildings: Utilized in projects focusing on reducing thermal loss within the duct network.

  • Industrial Ventilation: Ideal for light industrial settings where a more reflective inner core is preferred for temperature-sensitive air delivery.

  • Retrofit Projects: A quick means of correcting misalignment between existing rigid system components.

Specification: (from product catalog)

  • Diameter: 4″ to 20″

  • Inner Core: Double layer metalized PET & clear polyester

  • Outer Jacket: Metalized PET laminated over clear polyester

  • Insulation Thickness: 25 mm

  • Max Velocity: 5000 FPM (25.5 m/s)

  • Max Positive Pressure: 10″ W.C. (2.5 KPa)

  • Insulation R-Value: 4.2 or 6 ($F-hr/BTU$)

Authorized Distribution in Sri Lanka

Incube Holding Sri Lanka is the primary sales and distribution agent for Delta Duct air conditioning solutions and HAPRI building insulation products. We provide direct access to these high-quality enterprise building materials, specializing in Thermal and Acoustic Insulation Solutions across Sri Lanka.

For reliable, durable, and international-standard air distribution systems, trust the partnership between Delta Duct and Incube Holding.

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