Servofyress HFDR Oils are triaryl phosphate based fire resistant hydraulic fluids for general industrial applications. These are HFDR type fluids as per ISO 6743/4. They have excellent thermal and oxidation stability for high temperature applications and provide corrosion protection for both ferrous and non ferrous metals. They can be used as hydraulic fluids and high pressure reciprocating air compressor lubricant for high temperature applications. These products are not designed for use in EHC systems of power plants.