VMGZ oil (TU 38.101479-86) is the low-viscosity low cold-test mineral basis produced by means of hydrocatalytic process, solidified polymethacrylate additive an additive. Contains additives: antiwear, antioxidizing, antifoamy.
Oil is intended for systems of a hydrodrive and hydromanagement of the building, road, lumbering, hoisting-and-transport and other cars working on open air at temperatures in working volume of oil from -40°C to +50°C depending on type of the hydropump. For northern regions it is recommended as all-weather, for an average geographical zone — as winter.
Density at 20°C, kg/m3, no more: 865
Viscosity kinematic, cSt, at 50°C, not less: 10
Viscosity kinematic, cSt, at-40°C, not less: 1500
Viscosity kinematic, cSt, at 100°C, not less: —
Acid number, mg, no more: 0
Flash temperature, in an open crucible, °C, not more low: 135
Hardening temperature, °C, not above: -60
Mass fraction of sulphur, %, no more: —
Ash percentage, %, no more: —
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 affect work of components.