Aviation oil VNIINP 50-1-4f
aviation oil
Description
The oil-VNIINP 50-1-4f synthetic diester with additives that increase anti-wear properties and thermo-oxidative stability.
Applications
applied in engines with oil at an outlet temperature up to 175 ° C and cooling turbines.
Technical Specifications VNIINP-50-1-4f
| Indicator | Norm |
|---|---|
| Appearance | – |
| Kinematic viscosity mm2 /s: | |
| at 100 ° C, at least | 3,2 |
| at -30 ° C, no more than | – |
| at -40 ° C, no more than | 2000 |
| at -54 ° C, no more than | 11000 |
| Temperature, ° C: | |
| flash in the open crucible, not lower | 204 |
| pour point, not higher than | -60 |
| Acid number, mg KOH /g, not more than | 0,20 |
| Content: | |
| water-soluble acids, bases, solids, water | The lack |
| thermooxidative stability, h (temperature, ° C) | 50 (175), (air 10 dm3 /h) |
| Performance after oxidation: | |
| Kinematic viscosity mm2 /s, not more: | |
| at 100 ° C | – |
| at -40 ° C | 3500 |
| Change viscosity at 100 ° C, not more than | 7,0 |
| Acid number, mg KOH /g, not more than | 0,4 |
| Mass fraction of residue, insoluble in iso-octane,%, no more than | 0,30 |
| Corrosion on plates g /m2: | |
| Steel ShKh15 | The lack |
| copper M1 and M2 | ± 1,5 |
| Aluminum Alloy AK4 | ± 2,0 |
| Coking ability,%, not more than | – |
| Density at 20 ° C, kg /m3 and not more than | 926 |
| Tribological characteristics on CHSHMT at (20 ± 5) ° C: | |
| the critical load, N, not less than | 840 |
| wear rate under axial load 196 N, not more than | 0,40 |
