Flowserve makes pumps, valves, mechanical seals, and automation products that move, control, and protect the flow of liquids and gases in demanding industrial environments. Its equipment is embedded in refineries, chemical plants, power stations, pipelines, nuclear reactors, and water treatment facilities worldwide. Flowserve operates two segments: the Flowserve Pumps Division (FPD), which makes pumps, mechanical seals, and related systems and accounts for roughly 70% of revenue, and the Flow Control Division (FCD), which makes isolation valves, control valves, and valve automation products and accounts for the remaining 30%. Flowserve sells both original equipment to EPC firms and end users for new construction or upgrades, and aftermarket parts, repairs, and maintenance services to its large global installed base. Aftermarket accounts for over half of revenue and is the higher-margin, more recurring part of the business. Flowserve supports aftermarket customers through a network of 126 Quick Response Centers across 48 countries. Nuclear is a growing focus — Flowserve has content in roughly 75% of operating reactors worldwide, and estimates its content opportunity at $100-120M per new large-scale reactor. The company's margin improvement strategy centers on reducing product complexity by pruning low-value SKUs and customers, growing aftermarket mix, and applying its Flowserve Business System for operational discipline. Flowserve supplements organic growth with M&A targeting decarbonization, diversification, and digitization themes.