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Technical Feasibility

At the moment Turbine Oils are cleaned by centrifuges which remove contamination and free water. Then, why do we need the KLAROL Oil Purifier for cleaning turbine oils ?

A centrifuge cannot remove emulsified water from turbine oils, which acts as a catalyst to increase oxidation, causes foaming in oils and reduces component life. One of the major problems of continuous water presence in the oil is formation of varnish which is a thin, insoluble film deposit that is usually found on bearings and servo-valves. It is a high molecular weight substance that is insoluble in oil. Varnish insoluble are more than 75 percent soft contaminants that are less than 1 micron in size and are not measured by traditional particle counts. Insoluble compounds have polar affinities and, over time, begin to migrate from the body of the base oil to machine surfaces.

Initially, the surfaces start to show a golden / dark brown color which then changes to darker gum layers that hardens into lacquer.

Varnish cannot be removed by a centrifuge. It can choke turbine oil filters,servo pencil filters, reduce bearing life, cause servo and directional valves to stick and fail and can even cause turbine shut-down.

Varnish’s propensity to attract dirt and solid particle contaminants increases component wear. Varnish’s insulation effect causes loss of heat transfer in heat exchangers.