Principle of operation
Low Vacuum Dehydration (LVDH)

Water in oil leaves a trail of destruction corroding machine parts, reducing bearing life, leading to catastrophic breakdown.

Water depletes anti rust & anti oxidation additives in oil. It combines with gases such as ammonia and hydrogen sulphide - perpetuating the corrosion process.

A number of methods are used for removing water from oil, like centrifuging and coalescers. The most popular method to remove water is centrifuging.

Centrifuging however, cannot/does not efficiently remove water from oil, as explained in the comparative chart.

PRINCIPLE

Oil is indirectly heated and fed into a vacuum chamber where it is dispersed into a thin film to vaporise water and dissolved gases at low temperature.

The air and gases that evolve are condensed and removed from oil. Ultimate water removal through re circulation is zero percent water content or 5O% below saturation level. Soluble gases and air are also removed to 50% of saturation level. Indirectly heating oil at low temperature ensures there is no burn off, no oxidation and no additive depletion.

Cracked low molecular weight oil, which is a by-product of the oil oxidation process, which accumulates in the hydraulic or lubrication fluid, accumulates in Oil.

The LVDH is the only system, which can remove, cracked oil, thus restoring oil to its original properties.

The LVDH unit removes water/moisture to below 50% of the saturation point in oil at low temperature. (44-60⁰C) and finds application in: · Hydraulic oils · Turbine oils . Compressor oils · Vacuum pump and compressor seal oils · Gear oils  · Dehydration before blending different oils.

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