Oil contamination

Oil contaminationContaminated oil causes 90% of all machine faults and downtime.


Hydraulic fluids lie at the heart of any type of manufacturing equipment.

This oil must be filtered, analysed and replaced. And despite all this, companies still suffer downtime during which pumps, valves, cylinders and seals need to be replaced.



Pollution in the oil cannot be avoided and is an integral part of every hydraulic system.

Oil contaminationEven new hydraulic fluid is dirty, and typically contains more than 75,000 solid particles > 5µ per 100ml. Pumps, valves, pipes, hoses, heat exchangers and oil tanks all bring dirt from the manufacturer.

Abrasive wear, fatigue and erosion all cause additional contamination whenever dirt particles circulate through the system at high speed and at high pressure. Dirt particles from the surrounding air, entering through reservoir breathers and cylinders rod seals, add to the system's contamination load. Condensation caused by changes in temperature and leaking oil cooling systems contaminate the oil with water. A combination of metal particles (which act as catalysts), water and oxygen at relatively high temperatures will result in increased and accelerated oxidation of the oil.

During this complex process of oxidation, polymerisation causes sticky molecular structures, which we normally call "sludge".These resinous substances are dark in colour (one of the reason why oil darkens after a period of time) and leave deposits on all the many parts of the hydraulic system.

Due to their microscopic size, they are not removed by traditional filter systems, and because of their sticky structure and corrosive effect, they directly affect the efficiency and the reliability of the hydraulic system.


Solid particles

The element set up forces the oil to flow through 114 mm. of filtration material, and to pass through 3 stages of different density. The big particles are retained on top of the element, smaller particles in the 1st. stage, and the smallest particles in the lower compressed part. This progressive removal of particles, results in a high ß-ratio and a very high dirt absorption capacity.





Additionally the cellulose material allows the absorption of up to 200 ml. of water in the filter element. In case of higher water concentrations a special "Water eater" element (WE-100) or a "Water Separation" element (WS-type) can reduce water contamination to less than 100 PPM.



Sludge, resins and oxidation products

The most remarkable and noticeable feature of the Triple R element is his ability to remove resins and oxidation products. The resin removal results from a combination of a special cellulose material with a long flow distance (114 mm.)
through the element.

Read more about solid particles

  Read more about water   Read more about sludge



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