Self-priming, rotating displacement pump for relatively small capacities. The pump is ideal for dosing and pumping liquids with various viscosities up to pasty consistency. The operation direction is reversible, and capacity proportional to speed. All parts in contact with the medium are stainless steel; the driveshaft is sealed by two (double action) sealing rings made from UHMW-PE and PTFE compound and fitted with lockfluid connection. A distinctive advantage is the clear design, which ensures easy cleaning and maintenance. The integrated shaft bearings prevent radial or axial forces on the drive.