Lubricants and application temperatures of
Busch vacuum pumps
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VE101 DILO order No.: 3-690-R213
Ambient temperature: > 30 °C Lubricant recommended by Busch: VE 101
VE 101 has similar properties like VS 100.
specific gravity at +15 °C 0.956 g/cm
3
cinematic viscosity at 40 °C 95.0 mm
2
/s (cSt)
cinematic viscosity at 100 °C 9.2 mm
2
/s (cSt)
flash point 250.0 °C
pour-point -34.0 °C
This oil is a synthetic oil for high operating temperatures (oil temperature up to 110°C).
The advantage of the VE 101 oil is that it can be used very well for humid processes (drying, removal of
ground-air, etc.) as it does only very badly or not at all emulsify with water.
Examples for lubricants VE 101:
Servo Delben: Anderol 500
Ambient temperature below 0°C
Low temperature oil
Dilo-order No.: 3-690-R211
Ambient temperature: -10 to +20 °C
We recommend to use a synthetic oil with a pour-point below -50 °C.
This oil should be exchanged at ambient temperatures > 20°C otherwise the indicated final vacuum
cannot be reached.
Examples for synthetic oil:
Mobil: Rarus SHC 924 or Rarus 824
Ambient temperature below - 10 °C
At such temperatures the oil should be heated by heating the room or chamber with a heating element or
a heating lamp.
Note: According to Busch a heating element can only be installed into the vacuum pumps from a volume
of 165 m
3
/h as there is not enough space.
Dilo-order numbers for vacuum pump oils:
Application temperatures Busch designation Order number Quantity
5 to 30 °C VM100 3-690-R201 1-litre
5 to 30 °C VM100 3-690-R203 5-litres
-10 to +20 °C ---- 3-690-R211 1-litre
> 30 °C VS100, VSL100 3-690-R212 1-litre
> 30 °C VE101 3-690-R213 1-litre
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