The Grundfos NK 125-250/269 A2F2AE-SBQQE is a genuine Grundfos single-stage end-suction centrifugal pump featuring an axial suction port, radial discharge port, and horizontal shaft. Designed with a back pull-out type, it allows for easy disassembly of the motor, lantern piece, cover, and impeller without removing the pump housing from the piping. It is equipped with an unbalanced bellows seal compliant with EN 12756 and directly coupled to a 15 kW, 3-phase asynchronous motor with fan cooling. This pump is rated for a flow of 250 m³/h and a head of 21.6 meters, operating at 1475 rpm. It has a maximum operating pressure of 16 bar and handles liquid temperatures from -25 to 120 °C. The pump housing, impeller, and wear ring are made of robust cast iron (EN-GJL-250), while the shaft is stainless steel (EN 1.4057). The motor has an IE3 efficiency class, IP55 enclosure, and F insulation class, with built-in PTC motor protection.