Oil I-20A (GOST 20799-88) is a distillate oil or a mix distillate with residual from sulfurous and low-sulfur petroleums of selective clearing.
It is uses as working liquids in hydraulic systems of the machine-tool equipment, automatic transfer lines, presses. This oil is also used for greasing middle-loaded tooth gearings, slide ways bearing and sliding of machine tools where it is not required to use special oils, and other mechanisms. Mostly the oil I-20А is used in hydraulic systems of the industrial equipment, in building, on the roads and other machines working outdoors.
Application of specified oils in those or other mechanisms depends on their viscosity: in process of its increase in oil use in more loaded and less high-speed mechanisms. It is possible to replace the specified oil with alloyed oils IGP-18, IGP-30, IGP-38 and IGP-49 (TOR 38.101413-97) of corresponding viscosity.
Density at 20 °С, kg/cu.m, not more than: 890
Kinematic viscosity, cSt, at 40 °С, not less than: 25-35
Kinematic viscosity, cSt, at 20 °С, not less than: —
Kinematic viscosity, cSt, at -60 °C, not less than: —
Ash percentage, %, not more than: 0.005
Acid number, potassium hydroxide mg/ g, not more than: 0.03
Flash temperature, in an open cup, °C, not lower than: 180
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.
