Colfax Corporation (NYSE: CFX), a provider of fluid-handling solutions for critical applications, announced that William E. Roller has been promoted to executive vice president of Colfax Americas. He was most recently senior vice president and general manager of Colfax Americas. In his expanded role, he is responsible for the company’s operations in the Americas, as well as its global oil & gas and Colfax Defense Solutions organizations. His duties also include expanding the two-screw pump business and driving global sourcing. Roller joined Colfax in 1999, as general manager of Imo Pump.