This insulated flexible air duct for air conditioning has a diameter of 102 mm and an extended length of 10 m. It is intended for air distribution in air conditioning and ventilation systems and is supplied rolled up.
The duct is manufactured from a film of additive-treated polyolefin resin and stabilized with a built-in spring steel wire helix. The construction also includes a vapor-protective layer of additive-treated polyolefin resin and a heat-insulating polyester fiber coating.
The operating temperature is from -20 °C to +90 °C, while short-term temperature peaks of up to +110 °C can be tolerated. The maximum air velocity is 20 m/s, and the bending radius is 0.8–1.5 times the duct diameter, allowing the duct to be routed through installations with changes in direction.
At an air velocity of 8 m/s, the air volume is 250 m³/h, while at 10 m/s it is 333 m³/h. The maximum pressure is approx. 200 mm; the reference basis for this pressure specification is not further specified.
The black air duct has a fire reaction class of 1 according to the Italian standard D.M. 26/06/84. The diameter is specifically 102 mm and should not be equated with nominal 100 mm or 4-inch connections without verifying the actual connection dimensions of the installation.
Key featuresInsulated and flexible duct for air distribution
Diameter: 102 mm
Length: 10 m
Polyolefin film with spring steel wire helix
Vapor-protective layer and polyester fiber insulation
Operating temperature: -20 °C to +90 °C
Short-term temperature peaks: up to +110 °C
Maximum air velocity: 20 m/s
Air volume: 250 m³/h at 8 m/s and 333 m³/h at 10 m/s
Fire reaction class 1 according to D.M. 26/06/84
