The fire engine pump is a horizontal, single-step structure (with one rotor), with an axial inlet and with a radial outlet. The fire engine pump inlet is adapted for connection of the suction line, Ø 110, via a cap, 110, and is provided with a lateral  connection for connection of the line from the fire-fighting vehicle tank. At the outlet, there is located a forcing distributor. On both sides of the distributor, there are located oblique disk valves, ZK65, adapted for connection of two forcing lines, Ø 75 (via the caps 75). The fire engine pump shaft is supported in two anti-friction bearings lubricated in an oil bath. The water part, from the bearing  (oil) part, is separated with a service-free mechanical face sealing. At the shaft end, there is located a coupling enabling connection with a typical driving shaft of the fire-fighting vehicle. On the bearing body of the fire engine pump, A 16/10, there is mounted a vacuum pump, TPP 2, serving for sucking water from an external source and for priming the fire engine pump.