Uninsulated Flexible Duct
Flexible ducts are bendable tubes used in HVAC systems to transport air between different parts of the system. Made from a combination of plastic, metal wire coil, and insulation, they are
INCO-FDU3
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Uninsulated Flexible Duct

Flexible ducts are bendable tubes used in HVAC systems to transport air between different parts of the system. Made from a combination of plastic, metal wire coil, and insulation, they are

INCO-FDU3

Standard Specifications
Inner Core Double-laminated polyester film bonded to a corrosion-resistant steel wire helix for strength and durability
Maximum Positive Pressure 10 in. w.g. (2,500 Pa)
Maximum Negative Pressure 0.5 in. w.g. (125 pa)
Maximum Velocity 5,000 fpm (25 m/s)
Operating Temperature −22 °F to 302 °F (−30 °C to +150 °C)
Standard Length 25ft and 33ft
(8m and 10m)
Diameter 4" to 20"
(100mm to 500mm)
Fire Performance Standard Performance
Warranty 10 Years
  • It is a non-insulated aluminum flexible air duct specifically produced for low and medium pressure ventilation and air conditioning systems.
  • It is produced from multi-layer aluminium and polyester, strengthened with high tension hard steel spring wire.
  • Its dimensions, tolerances and mechanical resistance are tested, classified & certified according to EN 13180 standard.
  • Floduct Uninsulated  flexible air ducts are airtight.
  • It has high elasticity and flexibility. It can be easily fitted to circular, oval or rectangular connectors.
  1. Suitable for low and medium pressure ventilation and air conditioning systems
  2. Non-insulated.
  3. Aluminium inner and outer face
  4. M0 certified according to France national reaction to fire standard
  5. Class A2 certified according to European reaction to fire standard.
  6. Higher negative pressure durability compared to standard product.
  7. Smaller sag compared to standard product.
  8. Lower pressure loss compared to standard product
  9. Lower bending loss coefficient compared to standard product.
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Installation and Application