The Grundfos NK 40-200/206 A2F2AE-SBQQE is a high-efficiency, single-stage, non-self-priming centrifugal volute pump (Product No. 98973441) designed for reliable pumping of thin, clean, non-aggressive liquids free from abrasive or long-fibred solids. This close-coupled pump features a standard motor and a robust SBQQE mechanical shaft seal (Silicon Carbide/Buna/Buna/EPDM). It is suitable for diverse applications including district heating, air conditioning, cooling systems, general heating, industrial pressure boosting, and industrial liquid transfer. Constructed with a cast iron pump housing (EN-GJL-250) and impeller (EN-GJL-200), and a stainless steel shaft (DIN W.-Nr. 1.4057), ensuring durability and performance. It operates at 2900 rpm, delivering a rated flow of 20 m³/h and a rated head of 20.6 m, with an IE3 efficiency motor.