The Grundfos W8TW47 (Product Number 97933636) is a high-performance, single-stage, non-self-priming centrifugal standard block pump, model NB 50-125/135 A-F2-A-BQQE. Designed for a wide range of applications including water supply, industrial pressure boosting, liquid transfer, heating, and air conditioning systems, this pump ensures reliable and efficient operation. It features a robust cast iron pump housing, stainless steel impeller (EN 1.4301 / AISI 304), and a stainless steel shaft (EN 1.4057 / AISI 431). The pump is equipped with a BQQE primary shaft seal and is suitable for liquid temperatures ranging from -25 to 120 °C, with a maximum operating pressure of 16 bar. It has a DN 50 pipe connection conforming to EN 1092-2 flange standard, delivering a rated flow of 14.7 m³/h at a rated head of 17.5 m.