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One of our simplest of fans a ‘Biff’ or Bifurcated fan is often used in the food industry as they have a simple in-line axial design and with a motor that is on the outside of the air-flow. The air flow forks (bifurcates) around the motor. This allows the fan to carry gasses like steam or oil mist from fryers that would normally corrode a motor housed in the airstream.
This Stainless-Steel Biff was further modified for use where there is the possibility of explosive dust mixtures present. This is covered by the ATEX directive and requires us to take several steps to ensure that the fan has a reduced risk of ignition sources. This includes the use of brass spark minimising features and the fitting of a vibration sensor.