Rotary vane pumps

Maximum performance for rough and fine vacuum applications

Rotary vane pumps are a reliable option for a wide range of applications. With modern pumps, you can achieve efficient operation and maximum performance. Find the right model for your specific requirements.

Pfeiffer Vacuum+Fab Solutions introduces DuoVane®, a new series of rotary vane vacuum pumps. Usable worldwide, reliable and efficient, they are the optimized successors to the proven pumps from the Pascal and DuoLine series.

For many years, rotary vane pumps from Pfeiffer have been among the most frequently used pumps for generating rough and fine vacuum. They are very durable and robust, regardless of whether they are used as backing pumps to generate the necessary inlet pressure for turbopumps or as stand-alone pumps. Rotary vane pumps belong to the group of positive displacement pumps, as they deliver an almost constant, low-pulsation volume flow, regardless of the type of gas.

The operating principle is based on an eccentrically mounted rotor with two or more movable vanes, which rotates in a housing. Rotary vane pumps from Pfeiffer are oil-lubricated without exception. Special vacuum oils, also known as operating fluids, take care of sealing and lubricating the components, among other things, which enables very low ultimate pressure. In addition, the oil lubrication ensures a long service life, even in continuous operation.

A choice of versions offers the right variant for every application

Pfeiffer rotary vane pumps cover a very wide pumping speed range from 1.25 to 1,600 m3/h (at 60 Hz up to 1,920 m3/h). There are two different types to choose from when selecting a pump: Single-stage and two-stage rotary vane pumps.

Two-stage pumps are best suited for processes in the fine vacuum range. Single-stage models are preferred when the working pressure is predominantly in the rough vacuum range.

Maximum operational safety due to magnetic coupling

Many rotary vane pumps from Pfeiffer are available with an optional magnetic coupling. This eliminates the need for the shaft sealing rings that are otherwise common with this type of pump. Maintenance of the shaft seal is therefore unnecessary and oil leakage is avoided with the magnetic coupling.