Turbine OilsAll-Union State Standards 32-74T22, T30, T46 and T57 turbine oils are utilized for lubricating bearings and auxiliary machinery turbines (steam and gas turbines, turbo machinery, turbines). These oils are also utilized as working liquids for control systems. Guarantee period of storage - 5 years from the day of manufacture.Table 32
| Index name |
Т22 |
Т30 |
Т46 |
Т57 |
| Kinematic viscosity, mm²/s |
20–23 |
28–32 |
44–48 |
55–59 |
| Viscosity index, not less than |
70 |
65 |
60 |
70 |
| Acid number, mg KON/g, not more than |
0,02 |
0,02 |
0,02 |
0,05 |
| Temperature, °С: |
|
|
|
|
| - flash temperature in a closed crucible, not lower than |
180 |
180 |
195 |
195 |
| - solidification temperature, not higher than |
−15 |
−10 |
−10 |
– |
| Presence: |
|
| - mechanical impurities |
None |
| - water-soluble acids and alkalis |
None |
| Ash level, %, not more than |
0,005 |
0,005 |
0,010 |
0,030 |
| Sodium test, absorbance (ditch of 10 mm), not more than |
2,0 |
2,0 |
2,0 |
2,0 |
| Ash level, %, not more than |
5 |
5 |
5 |
5 |
| Test corrosion of copper plates, 3 hours, 100 ° C |
Withstands |
| Stability against oxidation, %, not more than: |
|
|
|
|
| - acid number after oxidation, mg KON/g |
0,10 |
0,10 |
0,10 |
– |
| - sediment after oxidation, % |
0,35 |
0,35 |
0,35 |
– |
| Colour, units of CNT, not more than |
2,0 |
2,5 |
3,0 |
4,5 |
| Transparency of the oil at 0°С |
Transparent |
| Density at 20°С, kg/m³, not more than |
900 |
900 |
905 |
900 |
|
|
