A great multifunctional box fan from German manufacturer Helios Ventilation. This fan is suitable for medium to higher airflow volumes against high resistances in every type of ventilation system The ..T120 Range is also suitable for the extraction of dirty, humid and hot air upto a maximum of 120Deg C.
Self-supporting frame construction from aluminium hollow profiles
Double walled side panels with 20mm thick temperature insulating and flame retardent mineral wool
Steel backward curved centrifugal impellor
All sizes except GBD630/4 T120 can be speed controlled
Technical Details
The curve below shows the fans performance. The top curve is without speed control and the fan produces 2941 m³/h (0.817 m³/s)at Free Air and its recommend maximum is 929 m³/h (0.258 m³/s) at 300Pa, the fan can perform anywhere between these points. The other curves show performance with a 5 step controller.