Oil IGP-91 (TOR 38.101413-97) is a distillate oil, residual oil or a mix of distillate and residual oils from sulfurous petroleums of deep selective clearing with antioxidizing, wear-protective, anticorrosive and antifoam additives.
This oil usually is used for greasing of the modern domestic and import equipment in various branches of a national economy for which operation oils with the improved operational properties are necessary.
Oil IGP-91 is used in hydraulic systems of heavy pressure equipment and for greasing gear transfers, middle-loaded gear and worm reducers, in circulating systems of grease of the various equipment.
The basic indicators characterizing operational properties of oils IGP are viscosity, stability against oxidation, anticorrosive properties and firmness to foaming.
Kinematic viscosity, cSt, at 40 °С, not less than: 148-165
Mass fraction of zinc, %, not less than: 0.04
Mass fraction of sulfur, %, not less than: 1
Flash temperature, in an open cup, °C, not lower than: 225
Hardening temperature, °C, not above: -15
Data on operational temperatures represent values, which are guided by a structure of lubricants, and also on a scope and technology of use. Depending on a kind of mechanical-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can affect work of components.