The Grundfos NKE 50-160/177 S2-A1F2-A-E-S-BQQE is a high-efficiency, speed-regulated end-suction centrifugal pump. This genuine Grundfos pump features a robust cast iron housing and impeller, stainless steel shaft, and a BQQE shaft seal (Silicon Carbide/Silicon Carbide/EPDM). Designed for a wide range of applications including water supply, industrial pressure boosting, HVAC heating and cooling, and district heating/cooling, it operates with a rated power of 2.2 kW and a voltage range of 3x380-500V. It includes a sensor for precise control and has an IP55 enclosure class and F insulation class, ensuring reliable performance in demanding environments. The pump has a maximum operating pressure of 16 bar and a DN 50 pipe connection.