Window of opportunity for vacuum pump

Vacuum is an important parameter when developing fast, gentle and reliable processes, especially for vacuum distillation and filtration applications. The diaphragm pump is the most popular method of conveying all kinds of gases and vapours due to its robustness, and in today's environment of stringent emission levels legislation and economic/environmental considerations, diaphragm pumps are commonly replacing old water jet pumps.

Frequency controlled pumps have become accepted as state-of-the-art in recent years because of well-documented advantages such as hysteresis-free pressure control, silent operation and less wear. Buechi Labortechnik has launched the V-700 vacuum pump with single stroke control. It is frequency controlled in the upper frequency range, whereas in the lower range it switches to single stroke control. This results in almost noiseless operation while maintaining the desired set vacuum precisely. The pump is completely enclosed in a rigid plastic housing, thus ensuring a compact design and low noise emission during operation.

Buechi's previous vacuum pump series was the first to be fitted with glass pumpheads, making it simple to detect possible contamination or condensate on the diaphragm's surface. With the V-700's new Window Head, visibility is even better, allowing observation of the conditions within the pump while it is running.

With a vacuum controller and a secondary condenser or cold trap, the V-700 Vacuum Pump can be extended to a complete, stand-alone flexible vacuum system.