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Hydraulic Fluids
Other Names: Fire resistant hydraulic fluids. Among the more common fire resistant hydraulic fluids are those made up of water and glycol with some thickeners and additives, phosphate esters and water in oil emulsions with additives.
Viscosity: Viscosities of the above liquids range from 22 to 110 cPs. at ambient temperatures
Pump Notes: Cast iron construction is satisfactory. Elastomers vary depending on the particular grade of hydraulic fluid. Hydraulic fluids are normally used at high differential pressures and a pump design capable of those pressures must be used.
See also: Hydraulics, Hydraulic Oil