Servofyress HFDU ES oils are non-aqueous fully synthetic ester type fire-resistant hydraulic fluids designed for use in high pressure hydraulic equipments operating in possible fire risk areas in manufacturing and mining industry (Servofyress HFDU 68 ES). They have very good anti-wear and anti-corrosion properties, good filterability and air-release value. They are HFDU type fluids as defined by ISO 6743/4 and ISO 12922.These grades have EATON approval under Rev-03-401-2010 Rev-01 . These oils also meet IS 7895: 1975 (RA 2007 )Tests for fire resistant characteristics of hydraulic fluids used in mining machinery.