Which oil or fluid you choose depends on what your equipment is and how you plan to use it.It doesnt matter how good the other properties of the oil are if the viscosity grade is not matched to the operating temperature range of the hydraulic system where it will be used.This means that under certain conditions, the use of a multigrade can reduce the power consumption of the hydraulic system.
The high shear rates and turbulent flow conditions often present in hydraulic systems destroy the molecular bonds of the VI improvers over time resulting in loss of viscosity. This adjustment reduces the maximum permissible operating temperature that would otherwise be allowable with the selected oil and thereby provides a margin of safety for viscosity loss through VI improver shearing. The use of these fluids is approved by most major hydraulic component manufacturers. Detergent oils have the ability to emulsify water, and disperse and suspend other contaminants such as varnish and sludge. These can be desirable properties in mobile hydraulic systems, which unlike industrial systems, have little opportunity for the settling and precipitation of contaminants at the reservoir, due to its small volume. Water accelerates the aging of the oil, reduces lubricity and filterability, reduces seal life and leads to corrosion and cavitation. Avoid these problems by maintaining water content below the oils saturation point at operating temperature. Stabilized ZDDP chemistry has largely overcome these shortcomings, making it an essential additive to the fluid used in any high-pressure, high-performance hydraulic system, such as those fitted with piston pumps and motors. However in some applications, especially those with extremes of temperature or other unusual operating conditions, using something different than what the manufacturer recommends may increase hydraulic system performance and reliability. For more information on reducing the operating cost and increasing the.
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