Manual and Automated Cryogenic Ball Valves Flowserve s Worcester Control products are recognized today as one of the world s leading brands. Worcester can claim what is arguably the most comprehensive product range of any ball valve manufacturer in its field. From standard flanged ball valves to both ANSI and DIN specifications in reduced and full bore to three piece valves for cryogenic high pressure steam diverter or sampling duty or high integrity valves multi way designs modulating controls or customized solutions to specific user problems they supply valves throughout the world for virtually any application.