FirstDuct provide the best solution for your ducting needs with high quality materials. Our pre insulated ducts (PIR) have an excellent insulation properties, lightweight material, and great durability. PIR Duct (Poly Isocyanurate Rigid Form) is an improvement from PUR Duct (Poly Urethane Rigid Form) with better fire retardancy, higher density and better R value.
Description | Value |
---|---|
Panel dimensions (mm) | 4000 x 1200 x 20 |
Density of polyisocyanurate (PIR)1 | 53 +/- 2kg/m31 |
Aluminium foil thickness | 80 micron |
Fire retardant | class O |
Thermal conductivity | 0.020 w/m.k |
Friction losses | 0.0135 |
Pressure in duct max | 2000 pa |
Weight | 1.48 kg/m2 |
Working temperature | -60°C to +80°C |
Air flow max | 12 m/s |