Ultragrade 70 Oil
Edwards offers a range of new oils, Ultragrade® 15, 19, 20 and 70, which result from a new process. Most manufacturers use a solvent refining process, whereas these oils are produced by a unique hydrotreating process. This process eliminates nitrogen, sulphur and oxygen and the aromatic hydrocarbons, leaving a clear base stock essentially free of impurities.
When combined with additives, the Ultragrade® oils give improved vacuum performance, thermal and oxidation stability and rust inhibition. The anti-oxidants included in the oils enable the pump to withstand high operating temperatures without oil degradation, so extending intervals between oil changes.
Informacje
Features and Benefits
- When combined with additives, the Ultragrade® oils give improved vacuum performance, thermal and oxidation stability and rust inhibition.
- The anti-oxidants included in the oils enable the pump to withstand high operating temperatures without oil degradation, so extending intervals between oil changes.
- The properties of the oils allow them to be used in a wide range of applications.
- New Ultragrade 70 oils are the best choice for large pumps used in heavy-duty, cycling applications.
Applications
- Mass spectrometers
- Electron microscopes
- Thin film sputtering
- Surface studies
- UHV systems
- Leak detection
- TV tubes
- Power valves
- Distillation
- Space studies
- Furnaces
- EB welders
- Impregnation
- Chemical pumping
- Packaging
- Metallisation
Dane techniczne
| Vapour pressure mbar: | |
| 20°C | 2.1 x 10-7 |
| 100°C | 3.0 x 10-3 |
| Molecular weight | 600 |
| Specific gravity at 15°C | 0.86 |
| Viscosity cSt: | |
| at 20°C | 222 |
| at 40°C | 70 |
| Pour point °C | -12 |
| Flash point °C | 230 |
| Auto ignition point °C | 360 |
| Sulphur content % mass/mass | 0 |