Pre-insulated Duct (PU) by FirstDuct for Air Duct. PIR (Poly Isocyanurate Rigid Form) is an improvement from PUR (Poly Urethane Rigid Form) with better fire retardancy, higher density and better R value.
| Panel dimentions (mm) | 4000 x 1200 x 20 |
| Density of Polyisocyanurate | 53 +/- 2 kg/m³ |
| Aluminium foil thickness | 80 micron |
| Fire retardant | Class 0 |
| Thermal conductivity | 0.020 w/m.k |
| Friction losses | 0.0135 |
| Pressure in duct max | 2000 pa |
| Working temperature | -60°C until +80°C |
| Air flow max | 12m/s |
| Weight | 1.48 kg/m² |
Pre-insulated Duct (PU) by FirstDuct for Air Duct