The centrifugal separator removes large volumes of condensate from the compressed air. Optimised design enhances the centrifugal effect and ensures a near constant degree of condensate separation over a wide flow volume range. Furthermore, particles up to 5 μm are also “washed out”. A centrifugal separator is recommended for systems where the refrigeration dryer is installed “directly” downstream from the rotary screw compressor. The centrifugal separator is installed between the compressor and the refrigeration dryer and removes the ‘liquid condensate’ from the compressed air. This provides the refrigeration dryer with additional reserve drying capacity. This is particularly important at high ambient temperatures in order to ensure that the required dew point is consistently maintained. KAESER centrifugal separators are maintenance-free.