Knowledge

Viscosity Stability and its Importance in Hydraulic Oils.Maintaining viscosity stability is a crucial factor for any lubricant, particularly hydraulic oils. Equipment manufacturers (OEMs) suggest specific ISO-grade hydraulic oils, and the hydraulic oil needs to retain its recommended ISO grade throughout its operational lifespan.The degree of viscosity stability is assessed through shear stability …

The significance of operating temperature in hydraulic oil lies in the fact that within this specific temperature range, the hydraulic oils maintain their viscosity within the ISO-grade standards, ensuring optimal performance. Additionally, operating within this temperature range contributes to a low oxidation rate, promoting a well-functioning system and overall good operational conditions. …

There is a connection between the degree of viscosity loss and hydraulic performance. When hydraulic oil experiences significant shear instability leading to high viscosity loss, it can be detrimental to your system. This is because the viscosity of the hydraulic oil may fall outside the specified range for its viscosity grade. Increasing shear reduces the high-temperature properties of the fluid. …

Thermal conductivity refers to a material's capability to conduct heat and is typically represented by the symbol "k" with units in W/mK (Watts per meter Kelvin) in the International System of Units (SI). This property plays a crucial role in gauging conductive heat transfer. The ability of heat transfer fluids to conduct heat is directly influenced by their thermal conductivity. A heightened ther …