ADVANTAGES OF OIL FILTERING IN A SECONDARY CIRCUIT Lower costs for purchase and disposal Costs are drastically reduced thanks to the increased service life of oil and to the reduced amounts of waste oil to dispose of. More productivity and reliability of your system A considerable reduction of downtime due to the accumulation of contaminating particles in oil, and as a consequence increased production and reliability. More protection for hydraulic components Constant removal of condensate and the reduction of solid particles in oil offer a longer service life to valves, pumps, filters and other hydraulic machine components.