Hydraulic Oil
Non-compressible fluid that is used to transfer power within hydraulic machinery and equipment. Hydraulic oils can be classified into different subgroups according to various performance level some are given below:
- HL -With active ingredients to increase the corrosion protection and resistance to aging
- HM -With active ingredients to increase the corrosion protection and resistance to aging and to reduce wear due to scoring in the mixed friction area
- HLP- Further active ingredients in addition to HL oil to reduce wear and increase resistance in the mixed friction area – widest application in practice
- Minimises oxidation
- HV and HVLP- Like HLP, but with increased resistance to aging, as well as an improved temperature-viscosity relationship
- HLPD - Like HLP, but with additives to improve particle transport (detergent effect) and dispersion capacity (water carrying capacity) and active ingredients to increase the corrosion protection (German designation, not standardised)
