ItemSpecificationOuter SleeveSingle-layer AluminumInsulation MaterialFiberglass (Glass Wool) ,Thickness: 25mm / 30mmInner DuctDouble Layer AluminumFiberglass Density12kg/m3,16kg/m3,20kg/m3,24kg/m3,32kg/m3Polyester Density (option)Thickness: 25mm / 30mm, 100–750 g/m³Thermal ResistanceR4.2, R6, R8 (optional insulation thickness, high R-value colors is pink)Maximum Air Velocity30 m/sWorking PressureUp to 3000 PaAvailable Diameter50mm–650mm (2″–25″)Temperature Range-30°C to 150°CSteel Wire Diameter0.6–2.5 mm (carbon steel spiral)Standard Length10 m (customizable upon request)Ease of CuttingNo special tools required; easy to connectFire & Pressure TestingPassed fire resistance and pressure testsFlexibilityCan be bent in any direction (small bending radius)Space SavingCompression ratio of 10:1InstallationEasy installation; long service life
