Boge S-4 compressors with integrated refrigerant dryers

The oil-lubricated Boge screw compressors in the S-4 series between 55 and 110 kW now come with an optional integrated dryer. The refrigerant compressed air dryer is characterised by low pressure losses and has been fitted into the housing to ensure its compact design and flat surfaces with sharp lines could be maintained. The refrigerant dryer’s electronics and control systems are integrated directly into the device, which is only 400 mm longer than the non-dryer version.

Boge says the S-4 screw compressor provides high delivery volumes with low power consumption. The core element of every individual compressor is the compression pump designed and produced in-house, and the integrated power transmission or direct drive with speed control. The optimally designed cooling air duct and the vertical oil separator, which has been isolated from any mechanical vibration, are designed to provide quiet operation.

The compressed air has a pressure dew point of 3°C and is suitable for use across a wide range of applications. One advantage of the S-4 devices is their reduced footprint in comparison with similar compressors with separate downstream refrigeration — having a different unit to dry the compressed air means increased installation costs for both the electrics and pipework.