Abstract: The present invention relates to a multiple-stage centrifugal pump of inline design, comprising a connection housing (1) with connectors (2, 3) in the form of suction and pressure connectors, and a pump body (4). The pump body (4) is surrounded at a spacing by a casing tube (6) with the formation of a flow-guiding annular space (5). The pump body (4) and the casing tube (6) are fastened so as to transmit force between the connection housing (1) and a head piece (7), the head piece (7) is provided with a leadthrough for a motor-driven pump shaft (8), and the connection piece (1) is provided with a separating wall (9) which divides the suction and pressure regions, a flow-diverting guide element (10) being arranged in the transition region between the annular space (5) and a connector (3).