Refrigerated dryers RDX-serie

Refrigerated dryers RDX-serie
capacity up to 4,1 m3/min


Model RDX-24 RDX-30 RDX-36 RDX-41
Air flow* (m3/min) 2,4 3,0 3,6 4,1
Max. working pressure (bar) 14 14 14 14
Screw connection 1" 1" 1" 1"
Rated voltage (Phase/V/Hz) 1/230/50 1/230/50 1/230/50 1/230/50
Drive power (kW) 0,5 0,6 0,7 0,8
Length L (mm) 555 555 555 555
Width W (mm) 510 510 510 510
Height H (mm) 810 810 810 810
Weight (kg) 47 52 60 65

* Measured according to ISO 1217

RDX-series refrigerated dryers with a capacity of 0.4-36.0 m3/min are equipped with an efficient cast-aluminium heat exchanger and an inbuilt coalescence separator. The low degree of pressure loss due to the inbuilt separator and the reliable outer insulation of the heat exchanger facilitate a high level of energy efficiency for the system. The coalescence separator is insensitive to pressure fluctuations in the case of varying load and reliably removes up to 98% of condensed moisture.


Adjusting dryer's capacity for different operating conditions

For complete drying of compressed air, it is necessary to use refrigerated dryers. RDX series dehumidifiers are a robust design with low pressure loss and high efficiency.

The capacity applies to a working pressure of 7 bar, a compressed air temperature at the dryer's inlet of 35°C and an ambient temperature of 25°C, according to DIN ISO 7183. In order to calculate the dryer's capacity for real operating conditions at the dryer's inlet, please use the following correction coefficients:
Capacity(air compressor) x F1 x F2 x F3 = Capacity(dryer).


For an air compressor capacity of 1.6 m3/min, a working pressure of 4 bar, a compressed air temperature at the dryer's inlet of 45°C and an ambient temperature of 35°C, the required capacity of the refrigerated dryer is calculated as follows:

Capacity (dryer) = 1.6 x 1.25 x 1.39 x 1.14 = 3.169 m3/min.


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