Made of spiral steel wire integrated in three polyester layers coated with a high-quality flame-retardant layer and 25mm thick red colored fiberglass perimeter heat insulation and external housing of metallic colored polyester double layer.
Maximum operating pressure 3.000Pa.
Maximum air velocity 30m/s.
Sizes from 102mm to 508mm.
Resistance in case of fire, without releasing toxic gases.
Temperature from -30οC to +100°C.
Easy installation in circular or oval connections.
Suitable for air-conditioning and ventilation systems.