High Vacuum Generation
A) Direct driven oil sealed vane vacuum pumps
| Pumping speed, litres per minute | 100 | 250 | 500 | 1000 |
| Ultimate vacuum, mbar : a) Ballast closed b) Ballast open |
0.001 0.01 |
0.001 0.01 |
0.001 0.01 |
0.001 0.01 |
| Electric motor, h.p. | 0.33 | 0.5 | 1.5 | 3 |
| Oil charge, litre | 0.9 | 1.2 | 4.0 | 5 |
B) High vacuum diffusion pumps & accessories
| Inlet diameter, mm | 63 | 112 | 160 | 250 |
| Pumping speed, air, litre/second | 135 | 300 | 700 | 2000 |
| Ultimate vacuum, mbar | 1 X 10-7 | 1 X 10-7 | 1 X 10-7 | 1 X 10-7 |
C) High vacuum fluids & greases
| Product | Vapour pressure, 300C | Viscosity, Cst, 300C | Colour | Remarks |
| Molecular distilled rotary pump oil | 0.001 mbar | 100 Cst | Water white | No additives |
| Vapour booster oil | 0.0001 mbar | 12 Cst | Water white | With additives |
| D.P. oil | 1 X 10-6 mbar | 25 Cst | Water white | With additives |
Greases : Hydrocarbon greases ( for better boundary lubrication), Silicone greases, sealing putty (temporary leak sealing)
