Water lubricated compressors are mainly used as a replacement for dry running two stage air compressors. Bearings and rotors are lubricated with water, which makes it possible to completely remove all oil as well as the expensive seal system from the compressor.

Increasing demand for oil free air as well as oil free condensate in waste water has the potential to make the water lubricated compressor competitive also towards the oil flooded compressor.

SRM has developed a water lubricated compressor in the power range 22-45 kW, max 11 bar a. The design, including plastic finish molded rotors and water lubricated bearings, has proven a good reliability and performance in the same range as for an oil injected compressor.

SRM can assist in design and development, manufacturing and testing of water lubricated compressors.