Norweigan company StatoilHyrdo installed Europafilter oil filtration units in their compressor trains after they were experiencing operational reliability issues. Europafilter oil filtration units are available exclusively in Australia through Basil V R Greatrex .
After extensive analysis, the operational issues were found to be linked to the cleanliness of the lub oil in the 5 compressors during operation (NAS1638 CLASS 12).
Every three months each of the 10 Frank Mohn, 1500 litres/min screw pumps had to be dismantled for maintenance and service to ensure that the lub oil was clean. StatoilHyrdo decided to install Europafilter kidneyloop oil filtration units in an offline circuit in the hope that this may reduce the time and money spent currently maintaining the screw pumps.
The Europafilter oil filtration units treat the lubricant continuously while the compressors are in operation as the oil leaving the oil reservoir is cleaned and then returned to the oil reservoir.
StatoilHyrdo have been very pleased with the Europafilter oil filtration units. The screw pumps have experienced considerably less wear and very little oil consumption. The screw pumps have not required maintenance nor has their oil been changed since the oil filtration units were installed nine years ago.