A normal-suction multistage horizontal high-pressure centrifugal pump Wilo block type with a horizontal suction and vertical pressure nozzle, as well as with a built-in frequency converter with air cooling. The built-in frequency converter allows you to vary the rotation speed, adjust the pressure and the PID controller. The pump is suitable for use in water supply and pressure boosting systems, industrial circulation systems, process water systems, cooling water circulation circuits, fire extinguishing installations, washing installations and irrigation. In addition, it can be used in fire extinguishing installations, washing installations, as well as for irrigation.