The presented results were primarily obtained within the research project ‘‘Exact Global Topology-Optimization for Pumping Systems’’, project No. 19725 N/1, funded by the program for promoting the Industrial Collective Research (IGF) of the German Ministry of Economic Affairs and Energy (BMWi), approved by the Arbeitsgemeinschaft industrieller Forschungsvereinigungen ‘‘Otto von Guericke’’ e.V. (AiF). We want to thank all the participants of the working group for the constructive and close collaboration. Furthermore, we would like to thank the German Federal Ministry for Economic Affairs and Energy (BMWi) for financially supporting parts of the work within the scope of the HECTOR research project as part of the ENPRO 2.0 initiative (funding code: 03EN2006 A).