Oil K-19 (GOST 1861-73) is producedl from low-sulphur petroleums by method of selective clearing.
It is intended for greasing of piston compressors of an average and a high pressure of technological installations where oils with the low content of sulphur are required.
Viscosity index, not less: —
Density at 20°С, kg/m3, no more: —
Viscosity kinematic, cSt, at 100°C, not less: 17-21
Viscosity kinematic, cSt, at 40°C, not less: —
Acid number, mg: 0.04
Flash temperature, in an open crucible, °C, not more low: 245
Hardening temperature, °C, not above:-5
Ash percentage, %, no more: 0,01
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 mehaniko-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can influence work of components.