Process and media valves regulate and control liquids and gases and are used in process automation as well as factory automation in a multitude of applications. These include filling and dispensing, cooling, heating/preheating, lubrication, steam distribution; in steam boilers, sterilizers and autoclaves, textile processing machines, filling systems, industrial washing machines and industrial steam presses. They are suitable for viscous media, including contaminated and aggressive liquids (acids), steam and various gases, and vacuum.