Proportional valves below are also called flow regulator valves or motor valves, they are used in pipe systems, machine and plant construction, process engineering, packaging machines, and in the food industry, for example for filling systems and compressed air applications. This valve type is used wherever a liquid or gaseous medium, or even steam, has to be smoothly regulated. Many valves can only be completely closed or opened. The proportional valve has a large advantage here because it can be opened and closed proportionally by an electronic signal and thus has dozens of variable degrees of opening. Additionally, the system can be adjusted during running operation. Thanks to these properties, this proportional valve is excellent for dosing processes.