The Grundfos NB 125-200/226 EUP A-F2-A-BQQE is a high-efficiency standard block end-suction pump, identified by Grundfos product number 98843515 and EAN 5712602251630. This robust pump is engineered for reliable liquid transfer in diverse industrial and commercial applications, including heating, cooling, and water supply systems. It features a durable cast iron housing (EN-GJL-250) and impeller (EN-GJL-200), complemented by a stainless steel shaft (EN 1.4057). The pump is equipped with a BQQE primary shaft seal (Silicon Carbide/Silicon Carbide/EPDM) and meets ISO9906:2012 3B curve tolerance. Designed for a rated flow of 200 m³/h and a rated head of 17.5 m at 1470 rpm, it supports a maximum operating pressure of 16 bar and liquid temperatures from -25 to 120 °C. The pump has a DN 125 pipe connection with PN 16 pressure rating according to EN 1092-2 flange standard. It is typically paired with a 22 kW IE3 motor.