OELCHECK GmbH products

Air release property is the period in minutes after which the air disperged in oil is again released up to a residue of 0,2 Vol.%. Air is blown into the oil sample through a defined valve at a defined pressure and time. Via the density, depending on the time, the release of the disperged air bubbles is recorded graphically till the volume remains unchanged. The air release time is taken from this graph.

The sample diluted with solvent is running over an object carrier which is an inclined plane. Under this glass band there is a horizontal magnet. At the peak of the object carrier the magnetic field force has its lowest intensity. On the lower end of the carrier the glass band almost touches the magnet which means that the field force at this point reaches its highest intensity. As soon as the oil-solvent mixture passes the carrier, the larger easily magnetizable iron particles deposit in the upper part. The smaller particles need a stronger magnetic intensity and accordingly they deposit more deeply. The deposit follows the pattern of the magnetic field lines.