Book excerpt: Pumping Machinery Theory and Practice comprehensively covers the theoretical foundation and applications of pumping machinery. Key features: Covers characteristics of centrifugal pumps, axial flow pumps and displacement pumps Considers pumping machinery performance and operational-type problems Covers advanced topics in pumping machinery including multiphase flow principles, and two and three-phase flow pumping systems Covers different methods of flow rate control and relevance to machine efficiency and energy consumption Covers different methods of flow rate control and relevance to machine efficiency and energy consumption