Special-technology rotodynamic pumps

Leaflets B 4 300 to B 4 308 [18] to [22] deal with rotodynamic pumps, i.e. centrifugal, helical and axial pumps of standard design. In addition to these machines, which make up the main body of the pumps, there are other machines that have to satisfy specific functions.

Side channel pumps can achieve very high heads, while maintaining moderate rotation speeds and a small footprint.

Pumps for heavy liquids are resistant to erosion and abrasion, or offer exceptional flow cross-sections that allow large solids to pass through.

Inducer pumps using a feed propeller make it possible to produce pumps with reduced dimensions, or to achieve the very small NPSH required, enabling suction far beyond that of a standard centrifugal pump.

In the following, we will describe each of these pump types, explain their operating principle and explain the context in which they should be used.