The color of vacuum pump oil can often reflect its refining degree and stability. For base oils, the higher the general degree of refining, the cleaner the removal of hydrocarbon oxides and sulfides, Shanghai EVP vacuum pump oil prices, the lighter the color. However, even if the refining conditions are the same, different oil sources.
Shanghai EVP vacuum pump oil is synthetic oil, imported from Germany, packing: 5 liters, 20 liters, vacuum pump oil high temperature resistance, oxidation resistance, better vacuum. Suitable for large vacuum pumps.
HFV-A Series High Vacuum Pump Oil
Vacuum pump oil effect:
In the process of using thermal conductive oil pump, because the vacuum pump oil directly into the pump chamber, when the vacuum pump runs, with the gas pressure gradually reduced, the pump temperature gradually increased. The molecular components with high saturated vapor pressure in oil can evaporate into the vacuum space, which affects the ultimate pressure of the vacuum pump, and can diffuse back to the vacuum system, polluting the vacuum system and directly affecting the acquisition of the ultimate vacuum.
Vacuum pump oil model:
| Item/Grade | HFV-A100 | HFV-A200 | HFV-A250 | Experimental Method |
| Kinematic viscosity(40oC), mm2/s | 41.4~50.6 | 61.2~74.8 | 90~110 | GB/T265 |
| Viscosity index | 105 | 105 | 105 | GB/T2541 |
| Flash point(open cup), ℃ | 225 | 240 | 250 | GB/T3536 |
| Pour point, ℃ | -10 | -10 | -10 | GB/T3535 |
| Demulsibility(40-40-0)ml,min54℃
82℃ |
10— | 10— | —10 | GB/T7305 |
| Foam characteristic(ml/ml)(Foam tendency/stability)
24℃ 93.5℃ Later24℃ |
80/050/0
60/0 |
80/050/0
60/0 |
80/050/0
60/0 |
GB/T12579 |
| Extreme pressure，kpaDifferential pressur
Total pressure |
2.0×10-52.0×10-4 | 2.0×10-52.0×10-4 | 2.0×10-52.0×10-4 | GB/T6306.2 |
Shanghai EVP vacuum pump oil is a special lubricating oil specially developed for vacuum pumps on vacuum equipment. Vacuum pump oil is suitable for reciprocating booster pump, mechanical booster pump and oil seal mechanical vacuum pump, etc. It can also be used for various diffusion vacuum pumps. It is recommended for the use of vacuum pumps in handicrafts, ceramics, chemistry and other fields. Specific vacuum pump oil price can consult Shanghai EVP.
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