Single-stage glanded centrifugal pump with in-line design for pipe installation or installation on a base. Low-oscillation and low-noise monobloc design with lantern and rigidly connected standard flange motor. With forced-flow circulation, bidirectional bellows mechanical seal and cavitation-reducing impeller. From kW 37 with a cartridge mechanical seal in the back pull-out system for mechanical seal replacement without dismantling the motor. Flange with R 1/8 pressure measuring connections. Pumps with motors ≥ 5.5 kW are equipped as standard with a PTC thermistor sensor for motor protection.