Thermostatic valves are devices used to control the temperature of a heating system, such as radiators. They automatically adjust the flow of hot water based on the room temperature, ensuring a comfortable environment. By responding to changes in temperature, these valves help maintain a consistent heat level and improve energy efficiency. These valves typically consist of a sensor that detects temperature changes and a mechanism that opens or closes the valve accordingly. Commonly found in residential heating systems, thermostatic valves can also be used in commercial buildings and industrial applications to optimize heating performance and reduce energy costs.