Insulated Flexible Aluminum Tube

The Insulated Flexible Aluminum Tube is a high-performance ducting solution engineered for modern HVAC systems where temperature preservation, moisture control, and installation flexibility are critical.

Consisting of an inner aluminum foil core, an embedded high-tensile steel wire helix, a thermal insulation layer, and a protective outer jacket, this multi-layer structure provides a lightweight yet durable air-conveying channel.

Compared to rigid sheet metal ductwork, its flexible design significantly accelerates installation in restricted spaces while reducing thermal loss and condensation risks across complex layout routes.

Optimized Airflow Stability: The spring steel helix prevents duct collapse and maintains internal diameter even during tight bends.

Labor-Saving Installation: Easily cut to required lengths on-site; connects quickly to standard round collars and grilles with clamps.

Efficient Logistics: Compressible design allows bulk rolls to pack tightly, reducing warehouse storage space and shipping volume per unit.

Durable & Flame Retardant: Constructed with heat-resistant laminates and self-extinguishing insulation options meeting international fire safety codes.

Residential HVAC Systems: Ducted central air conditioning, heat recovery ventilators (HRV/ERV), and ceiling diffuser connections.

Commercial Buildings: Ceiling air supply/return runs in office towers, shopping malls, hotels, hospitals, and schools.

Industrial Facilities: Spot cooling, ventilation ducts in workshops, equipment air intake, and air exchange in manufacturing plants.

HVAC Equipment Connection: Flexible couplings between main duct headers and Fan Coil Units, Air Handling Units, or VAV terminal boxes to isolate vibration.

Aluminum Foil Inner Core: Multi-layer aluminum foil laminate offering a smooth inner airflow passage, high moisture barrier, and corrosion resistance.

Reinforced Steel Wire Helix: High-carbon spring steel wire wrapped within the inner wall to maintain duct roundness, structural integrity, and crush resistance under variable air pressures.

Thermal Insulation Layer: High-density Fiberglass or Polyester insulation tailored to required thermal resistance (R-value) and condensation prevention specs.

Outer Protective Jacket: Heavy-duty vapor barrier jacket shielding the insulation from tearing, dust, moisture, and handling damage during transport and fitting.

To maintain optimal thermal performance and airflow efficiency, follow these recommended practices:

Maintain Smooth Curves: Avoid sharp turns or crushing the duct; sudden direction changes increase air resistance and static pressure loss.

Adequate Support: Install hanging straps every 1.2m to 1.5m to prevent sagging and stress on connections.

Vapor Seal Connections: Ensure both the inner core and outer jacket are fully sealed at collars using appropriate duct tape and stainless steel hose clamps to prevent air leakage and moisture ingress.

Handle with Care: Avoid dragging ducts over sharp metal studs or concrete corners during pulling.

Custom Sizing: Non-standard diameters, special wire pitch, and specific length requests (7.5m / 15m).

Insulation Customization: Custom thermal density, thickness (up to 75mm), and material formulation (Polyester or Fiberglass).

OEM Packaging & Branding: Outer jacket printing, customized carton branding, and private labeling.

Flexible MOQs: Accommodating container mixed-size loading and initial sample orders.

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