Refrigeration dryers of the DFE series are designed for drying compressed air flows up to 16 bar (g) to pressure dew points up to +3°C for compressed air without aggressive substances.
All the models are provided with an electronic condensate drain and a potential free alarm contact as stand-ard. The refrigeration dryers comply with the requirements of the Pressure Equipment Directive 97/23/EC as well as with the Machinery Directive 2006/42/EC and have the corresponding CE marking.
The dryer will be delivered as turn-key-unit. All electrical and mechanical components are ready mounted on a robust base frame with silencing hood (metal sheet, painted).
All components are easy to access and can be handled with standard tools for maintenance.
All models are serially with an electronic condensate drainer, dewpoint indicator, metal silencing hood, main switch, operation switch and power plug.
The plate heat exchanger block, made of aluminium has three functions:
Air / Air-heat exchanger, Air / refrigerant heat exchanger, and condensate separator system.
The refrigerant circuit exists of refrigerant piston compressor, air cooled refrigerant-condenser, pressure switch, pressure control device, “Schrader valve” (for refilling), thermostat for temperature to low and refrigerant tank and separator.
Partial load regulated by a thermal expansion valve and in conjunction with the cold accumulator the refrigerant circuit is switched on and off.
In case of overloading the dryer will switch off if dewpoint is higher +20 °C.
Very good access to all connections (compressed air inlet and outlet on the top side, power supply on the right side near to the top).
Start up time before using only 5 minutes.
A pre assembled dryer bypass incl. 3 ball valves is optionally available.