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A series of refrigerated air dryers with copper heat exchangers. The dryers of the DF series are basically made of two different circuits: compressed air circuits, divided into two heat exchangers and a refrigerating circuit. The hot and humid input compressed air passes through the air-to-air exchanger and then reaches the evaporator (air-to-refrigerant exchanger), where it is cooled by the refrigerating circuit until it reaches the preset dew point, thus condensing the humidity it contains. In the high-efficiency separator the condensed humidity is then separated and expelled.
The advantages of such a system are essentially two; first of all the air input is pre-cooled, so the refrigerating system can be sized in order to guarantee a more limited thermal jump, with an
energy saving of about 40 – 50%, and secondly no cold air is conveyed through the compressed
air line, thus overall preventing the formation of condensate on the external surface of the piping.
The range constitutes 22 models (DFE 3 – DFE 600) and 20 models (DFF 8 – DFF 600) with a compressed air flow rate of 0.34 to 60.5 m³/min.
Please refer to the downloadable PDF brochure for more information: 
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