Description: sound insulated flexible duct are made of micro perforated aluminum foil with strong helix steel wire as inner duct, covered with fiberglass insulation and non-flammable, excellent aluminum jacket.

Type: 1 layer / 2 layers / 3 layers

Thickness of inner duct:  0.074mm

Thickness of jacket:  0.045mm

Thickness of fiberglass:  25mm

Density of fiberglass: 20kg/m3

Diameter: from 3” (75mm) to 30” (750mm)

Length: 10m

Temperature range: -30 ºC  -  +150 ºC

Max air velocity: 30m/s

Working pressure: 2500Pa

Fire Resistance: Class B1

Low / Medium / High pressure air ventilation and air condition system

Packing: individual carton