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"Saving the World - One Customer at a Time..." ™


Educational Series - Volume 6 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - July 23, 2026


Hydraulic Myth #4


All Hydraulic Fluids are the Same

TRUTH:

Some fluids may look the same, but the difference in their chemical properties are not often visible!



Most Common Types: Mineral Oil, Synthetic Oil, Water Glycols & Phosphate Esters.


Differences in Chemical Properties


Some fluids provide better lubricity, some fluids work

better under high temperatures, some fluids have better

fire-resistant properties, some are necessary where the

oil may come in contact with food being made &

some are preferred to limit ecological impact -

the cost of these fluid can vary dramatically.


The seals used in the hydraulic pumps, motors, valves, cylinders & hoses must be compatible with

the fluid type being used.


If the seal types are not compatible with the fluid, the seals could swell or disintegrate, undermining the overall functionality of the system.

Fundamentals of Hydraulics Classes

Our week-long sessions include two major components of training:


Academic Training (above)

Hands-On Training (right)


(click on images for more information)

Our "Hands-On" training

helps students understand fluid power functionality with actual system components.

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