Daume Regelarmaturen GmbH is a medium-sized company based in Isernhagen in Hanover Germany. Daume focuses on the development and production of control valves in the energy sector but also in the process industry. Applications can also be found in the chemical industry, power plants, oil & gas, pharmaceutical and steel industries. Daume control valves are used worldwide. The product range is based on a modular system allowing the end user is able to control fixtures Daume apply. On almost all actuators Daume is specialized in controlling water and steam and supplying fixtures for customer specific applications.