|
BOC Edwards supplies the widest range of oils of different viscosities and specifications to enable customers to obtain the best performance from mechanical pumps under different application conditions. Mineral oils are manufactured by a hydro treatment process to reduce carcinogenic risk. All are specially prepared for high vacuum use, having low vapor pressures even at high temperatures. The particular mechanical pump specification
should be consulted to find which oil to use.
ULTRAGRADE MINERAL OILS
BOC 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 antioxidants 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. Contact BOC Edwards or your local supplier for detailed recommendations.
BOC Edwards TW has been developed for applications where rotary pump oils are likely to be exposed to reactive or corrosive gases. The oil is distilled hydrocarbon containing no additives, but unsaturates and aromatic links have been removed. The result is that the oil will last up to 20 times longer, depending on process, than refined mineral oils. Longer oil life significantly extends the intervals between oil changes.
BOC EDWARDS 45 OIL
BOC Edwards 45 is a hydrocarbon synthetic polymer whose molecular structure offers chemical inertness, high temperature stability and low vapor pressure (<10-7 mbar at 25 ºC). It is commonly used in mass spectrometry applications because of its well defined peaks. BOC Edwards 45 oil is non-toxic, non-corrosive and reclaimable. |
LowVac 60
LowVac 60 is a carefully selected blend of unique ‘semi-synthetic’ base oils and vacuum stable additives. Manufactured in a unique process, LowVac 60 performs well over a wide ambient temperature range and has good resistance to both thermal degradation and oxidation. LowVac 60 is well suited for use in single stage rotary vane pumps such as the ‘EV’ range, and rough vacuum applications.
Typical applications would be:
Food packaging
Food processing
Thermo-forming
Central Vacuum systems
Vacuum handling
Printing
Note: LowVac 60 is not generally suitable for use in two-stage rotary vane
pumps. |
V-LUBE
The V-Lube range of oils offer good thermal stability and oxidation resistance and have been selected for use with the Stokes range of vacuum pumps. |
