Shell Irus Fluid C is a HFC TYPE FIRE-RESISTANT HYDRAULIC FLUID
Shell Irus Fluid C is an advanced water-glycol fire resistant hydraulic fluid containing powerful additives to enhance its anti-wear, anti-corrosion and anti-oxidation properties. The water content is approximately 40% by weight.
Shell Irus Fluid C is particularly suitable for demanding hydraulic applications where there is a high fire risk, such as those found in the Mining and Metal Processing industries In order to reduce the water evaporation Shell Irus Fluid C, as for all the ISO HFC type of fluids, should be used below 55°C with a suggested maximum temperature of 45°C.
In general, water-glycol fluids are less effective bearing lubricants than petroleum mineral hydraulic oils, but are entirely satisfactory in systems containing pumps with plain bearings or lightly loaded ball and roller bearings. However, in common with other water-based fluids a reduction in bearing life can be expected. This will normally be included in the ‘derating’ made by the pump manufacturer.
CONTROL OF WATER CONTENT
Water content should be controlled within 35% to 45% by weight. Condensate or de-ionized water should be used for any additions, which should be made slowly while the fluid is circulating.
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