COMBIAFS RECTANGULAR is produced from multi-layer aluminium & polyester strengthened with high tension steel spring wire, covered with a PVC layer. COMBIAFS RECTANGULAR is recommended for discharging welding fumes (where high mechanical resistance is required), low and medium pressure heating, cooling and air conditioning systems.
In order to prevent condensation the surface temperature of the duct shall be kept higher than the dew point of the air surrounding it. A PVC layer on the outer surface of COMBIAFS RECTANGULAR acts as an insulation which makes the duct more impermeable to water and keeps surface temperature higher.
COMBIAFS RECTANGULAR is elastic and flexible. It can be easily fitted to circular, oval, or rectangular connectors.
The dimensions, tolerances and mechanical resistance of COMBIAFS RECTANGULAR are tested, classified & certified according to EN 13180 standard.