The Grundfos NKE 40-125/142 S2 A2 F2 AE-SBQQE (Product Number 99539667) is a high-efficiency, speed-regulated centrifugal pump designed for reliable performance in demanding industrial and commercial applications. This genuine Grundfos pump features a robust cast iron (EN-GJL-250) pump housing and a cast iron (EN-GJL-200) impeller. It is equipped with a primary shaft seal (SBQQE) made of Silicon Carbide/Silicon Carbide/EPDM, ensuring durability and leak-free operation. The integrated MGE 90LB motor provides 1.5 kW of power, operating at 3x 380-500 V and 50 Hz, with a rated speed range of 2900-3600 rpm. It delivers a rated flow of 10.8 m³/h and a rated head of 10.8 m, with a maximum operating pressure of 16 bar. The pump is suitable for liquid temperatures ranging from -25 °C to 120 °C and features DN 40 pipe connections with a PN 16 pressure rating according to DIN standards. Its IP55 enclosure class and F insulation class ensure protection and longevity.