Vacuum oil VM-5с according to TU 38.401-58-3-90, is used as a working fluid in fore-vacuum piston pumps. Due to the high degree of purification of the base of vacuum oil, the VM-5с vacuum oil is characterized by a narrow fractional composition, low volatility, and high stability against oxidation.
Application area
Vacuum oil VM-5с is used in high-performance piston vacuum pumps AVZ, NVZ. Permissible use in mechanical vacuum pumps with oil seal.
Benefits
- Improves sealing of working chambers;
- Reduces friction power loss;
- Optimum viscosity for each specific case;
- Sufficiently low saturated vapor pressure (oil evaporation and the degree of vacuum achieved depend on it);
- Environmental Safety;
- High hydrolytic stability during evacuation of vapors and air;
- Low gas solubility.
Specifications
| Name of indicator |
Norm |
| Kinematic viscosity, mm² / s: at 50 ° С |
60-74 |
| Kinematic viscosity, mm² / s: at 100 ° С |
0,2 |
| Temperature, ° С flashes in a closed crucible |
230 |
| Temperature, ° С solidification |
-12 |
| Density at 20 ° С, kg / m³ |
0,875 |