Carl Hahn has been named director of international sales operations focusing on oil and gas separation technology at Pentair’s flow and filtration solutions segment. He will be responsible for building sales, customer service, engineering, and field service organization in the Dubai office and expanding the firm’s presence in the Middle East. Hahn, who joined the company in 2003, formerly served as its director of innovation and technology. He has experience in process optimization through advanced separations as applied to oil and gas production, petroleum refining, and petrochemical and specialty chemical manufacturing. Hahn holds a BS in chemistry from the University of Michigan and a PhD in chemistry from Princeton University.