Oil degradation products in hydraulic systems and lubrication systems can lead to malfunctions and increased bearing temperatures. The result is unscheduled downtime and high costs. Gel-like, resinous or solid oil degradation products are present in the system as residues. They accumulate at different points in the system where deposits on valves lead to increased wear and complete failure. Electrostatic discharges accelerate the oil degradation by cracking the oil. The resulting products react chemically to form larger molecules. This oil sludge leads to noticeable system contamination
To detect oil degradation products, oil analyses need to be performed. Visual particle sensors, MPC tests and the concentration of antioxidants give an indication of the extent of oil degradation. The main cause for the formation of varnish is oxidation. Furthermore, contaminants in lubrication oil and hydraulic oil accelerate oil degradation– regardless of whether they are solid, liquid or gas. As an expert in fluid conditioning and oil conditioning, HYDAC helps you to control varnish effectively and ensure sustainable system protection.
HYDAC Varnish Elimination Solutions
- Ion eXchange Unit IXU- Removing varnish with ion exchangers
Efficiently remove varnish from phosphate-ester (HFD-R) and polyolester (HFD-U) based fire resistant hydraulic fluids and lubrication fluids with the HYDAC ion exchanger unit. Our ion exchanger is constructed in a similar way to a bypass filter and works 24/7. The varnish is separated via accumulation onto a specific resin. This enables the varnish to be eliminated reliably.
- Varnish Elimination Units VEU-F – Removing varnish with cooling & filtration
For the removal of solid or gel-like oil degradation products: the service-friendly HYDAC Varnish Elimination Units VEU are used to condition mineral oils and effectively remove varnish. With this technology, the solubility of the contamination decreases as the oilcools down. This method is suitable for all lubrication applications and hydraulic oil applications which are operated with mineral oils.
- Varnish Elimination Unit VEU-F-5/3- Removing varnish from small tanks
The easy to service VarnishElimination Unit VEU-F-5/3 effectively removes oil degradation products from mineral oils. With this new unit, HYDAC has just the right solution for system tanks <1000 litres. Thanks to the special two-stage filter element, oil degradation products can be removed from your oil even without cooling. The VEU is installed in a matter of minutes with the tank connection kit and is ready for operation immediately.
