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Hydraulic

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There are several key components to the composition of hydraulic oil that must be noted. The most prominent property of hydraulic oil is that which pertains to its viscosity, in other words its viscosity and viscosity index, this is because these two aspects contained in this one property affect many systems and include but are not limited to; sealing, lubrication, pump efficiency, and rate of contamination. Another property would be the fluids low compressibility as this aspect of the fluid allows it to perform the fluids main and key function, act as a medium for power transfer and control, though in that regard there is many other properties involved like fast air release and low volatility but overall low compressibility is the most prominent. Last but not least of the most important properties of hydraulic oil is a compilation of its many lubrication functions derived from its anti wear , cleanliness, demulsibility, hydrolytic stability, and corrosive control qualities. Despite the fluids own cleanliness properties many hydraulic systems fall prey to contamination. This is usually due to human error itself usually in the form of placing new hydraulic oil barrels into the system without properly filtering it beforehand as new oil is usually nowhere near clean enough to be placed in the system. Other forms of contamination include Built –in where during the systems assembly or testing some form of contamination was introduced, and Ingressed contamination where air condensation leads to water being introduced into the reservoir which in turn leads to the production of large water based fluids that introduce contamination due to their support of biological growth. What I believe can occur the most though is in operation contamination as the degradation of rubber tubing, failure to clean the system after a replacing a pump, or any wear contamination generated

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