The Grundfos NBE 65-160/143 S2-A-F2-A-BQQE 2P (Part Number 973QA8) is a genuine Grundfos speed-regulated, single-stage, non-self-priming centrifugal standard block pump. This robust 7.5 kW pump operates on 3x380-500V power and features an integrated frequency converter for precise speed control. Designed for pumping clean, thin, non-aggressive liquids without abrasive particles or fibers, it is suitable for a wide range of industrial applications. Key specifications include a rated flow of 40 m³/h, a rated head of 25.5 m, and an impeller diameter of 143 mm. The pump housing is constructed from durable cast iron, and the impeller from stainless steel, ensuring longevity. It features a BQQE shaft seal (Silicon Carbide/Carbon/EPDM) and can handle liquid temperatures from -25 to 120 °C with a maximum operating pressure of 16 bar. This model is also identified by Grundfos product number 99534702.