If liquid is not compressible, why do we need special hydraulic fluid? Why not just use water?

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If liquid is not compressible, why do we need special hydraulic fluid? Why not just use water?

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33 Answers

Anonymous 0 Comments

Water’s properties aren’t great for hydraulic fluid. For example it’s not very slippery so the cylinders won’t slide as smoothly. Also it’s reactive, the metal hydraulic cylinders will get rusted out if you used water in them, not the case with inert hydraulic oil.

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