This document provides a technical comparison between Varian V450 Series Pumps and V551 Series Pumps, including outline drawings, technical specifications, technical advantages, accessories, and controller comparison
This document serves as a technical memo comparing the Agilent V450 Series (V450 and V450A) with the newer V551 Series pumps. It outlines the physical differences in dimensions and port configurations between the models.
The text details significant performance improvements in the V551, including higher pumping speeds for Nitrogen, Helium, and Hydrogen, better compression ratios, and lower ultimate pressures. Additionally, it highlights design upgrades such as a more robust structure, improved motor efficiency, and the inclusion of the MacroTorr stages.
| Pumping speed (N2) | 450 l/s (V450) / 550 l/s (V551) |
|---|---|
| Pumping speed (He) | 400 l/s (V450) / 600 l/s (V551) |
| Pumping speed (H2) | 380 l/s (V450) / 510 l/s (V551) |
| Weight | 25.0 kg (V450) / 19.4 kg (V551) |
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 the presence of MacroTorr stages.