DF/S"" portable electric extractor fan Use: the brand new “DF/S” portable fan is suitable for extraction of fumes, gases, dusts, foul air, small pneumatic conveyors of light dusts, air blowing etc.... and in all those cases where a quick solution or a simple and moveable installation of the fan is required. Easy to handle: thanks to the minimum weight and dimensions, the “DF/S” unit can be moved manually, is very practical and is easy to handle; it is furthermore equipped with a special support so that it can be positioned in several directions. Strong extraction: thanks to the high pressure generated, the centrifugal electric extractor fan with open impellers in painted steel sheet, allows excellent extraction via flexible hoses, which can also be very long (see flow rates-pressures diagram). Versions: the DF/S with protection grid on the extraction vent and outlet side is supplied as per standard in the 220 V single-phase version with start stop switch on the motor of three-phase 220/380 v 50 hz. Motors are supplied on request with other voltages, frequency 60 hz."