Compare the performance of V450 series and V551M series vacuum pumps
This technical memo compares the Agilent V551M series pumps with the older V450 and V450A series. It outlines the physical differences in outline drawings and dimensions, noting that while the inlet flange remains ISO160, the foreline flange requires an adapter for the new model.
The document highlights significant technical advantages of the V551M, including higher pumping speeds (up to 600 l/s for Helium), improved compression ratios, and a more robust design with MacroTorr stages. It also details the incompatibility between the old V450 controllers and the new pump, recommending specific Rack or Navigator on-board controllers.
| Pumping speed (N2) | 450 l/s (V450) / 550 l/s (V551) |
|---|---|
| Pumping speed (He) | 400 l/s (V450) / 600 l/s (V551) |
| Weight | 25.0 kg (V450) / 19.4 kg (V551) |
| Inlet flange | ISO160 |
No, the V450 controllers are not able to operate the V551 pump and must be exchanged.
The higher and newer technology of the turbo pump, better vacuum performances, and MacroTorr stages.
Yes, the V551 pump can be installed in any orientation.