The fact that contamination in industrial operating oils causes wear in the operating system components and lubrication functions, leading to unplanned downtime, expensive repairs and lower productivity, has long been known in the service and maintenance sector. The majority of units are equipped with some form of particle filter to reduce one of the reasons of this wear. Many people also know that penetrating water represents at least as big a problem as do particles, which not at least is emphasized when using bio-based oils.
Even a very small amount of water in hydraulic oil causes continuous wear to pumps, valves, bearings, gaskets and gears. In addition, an environment is created for corrosion in the hydraulic system, which sooner or later leads to breakdowns. The water must be removed from the hydraulic oil! Water is present in three forms in operating oils: Free water, emulsified water and bound water. The latter is molecularly bound to the oil and therefore impossible to separate by just using water-absorbing filters.
The only way to consistently keep all water away from the hydraulic oil is to supply energy and controlled air streams to release bounded water molecules from the oil. Capturing water with cellulose filters can be partly effective, but not to the level required to protect the oil from water. Cellulose filters just catch the free water and quickly fill the filter with water and thus also lose their function. To constantly change these filters becomes a very considerable cost to the operator.
COT Oil Refiner® is able to continuously maintain the PPM level below 200 ppm without risking the oil becoming oxidized or damaging the additives of the oil.