Polyisocyanurate (PIR) Pre-Insulated Duct Panel is one of the most advanced and energy saving air duct systems, it's eco-compatible and environment-friendly as well. The system is installed from zero ODP, Polyisocyanurate (PIR) Pre-Insulated Duct Panel and related accessories by using a set of special tools. The panels comprise rigid Polyisocyanurate (PIR) insulation foam protected on both sides with 80 micro coated aluminium foil, which is of low vapour permeability. The foam is completely CFC and HCFC free. And is of highly thermal resistance.
Specification and Technical Data Size 3900*1200*20mm Density 55 -60 kg/m3 Thermal Conductivity 0.020-0.025 w/m. K Fire Rating Class B1(GB8624-1997) Compressing Strength 0.2 MPa Bending Strength 2.0MPa Water Absorption < 0.1 % Working temperature -100 ---+80 ° C Max wind velocity < 12m/s