MD Sass notes that Flowserve is a major supplier of highly engineered pumps and valves for nuclear reactors. Once these critical components are installed, it is difficult to switch suppliers due to regulatory requirements and operational risks, which translates into attractive original equipment economics and long-term revenue from replacement parts and services. As of August 28, Flowserve's stock price was $80.33, up 49.70% over the past 52 weeks.