The Grundfos NB 65-315/320 A-F2-A-BQQE, identified by part number 4RWTQ8, is a genuine Grundfos standard block pump designed for reliable liquid transfer in various industrial and commercial applications. This high-efficiency pump, also known by Grundfos Product Number 98844329, features a robust cast iron housing and impeller, a BQQE primary shaft seal (Silicon Carbide/Silicon Carbide/FKM), and is powered by an IE3 efficiency class MGE motor with 7.5 kW rated power. It operates at 50 Hz with a rated voltage of 3 x 380-480 V, delivering a rated flow of 50 m³/h and a rated head of 25.5 m. The pump has a maximum operating pressure of 16 bar and can handle liquid temperatures from -25 °C to 120 °C. It is equipped with an IP55 enclosure class and F insulation class, ensuring durability and safety. Key dimensions include a port-to-port length of 480 mm and DN 65 pipe connections, with a net weight of 104 kg.