Round ventilation duct made of expanded polypropylene (EPP). The most important features of the product are: rigid construction, low weight, easy assembly (female coupling on each element) and good thermal insulation. EPP ducts, used, for example, as sections of the supply and exhaust ventilation systems with heat recovery, do not require additional insulation. The system eliminates the formation of thermal bridges.
EPP ducts are manufactured in 1 m section and diameters 125 and 150 mm. The standard wall thickness is 15mm (gray colour). The duct is supplied with one female coupling in the set.
Thermal conductivity: 0.039 W / m * K
Airtightness class: C
Surface roughness: 0.077 mm