What type of fluid do hydraulic devices use to exert pressure?
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The type of fluid hydraulic devices use to exert pressure is in-compressible liquid.
- The in-compressible liquids are as follows:
- Mineral oils – products of refining crude oil
- Fire-resistant fluids – there are 4 main types. HFAE, Type HFC, Type HFAB and Type HRAS.
- Water/oil emulsions – this is when the predominant substance (around 60%) in the oil.
- Water glycol - made up of 40% water and 60% glycol
- Phosphate Esters
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