Thermostatic valves are installation products that are located on the radiator and allow you to control the room temperature. In case the temperature level you have set on the valve is reached, the valve prevents unnecessary energy consumption by controlling the water flow. By keeping the room temperature at the desired level, it provides a comfortable living space and at the same time allows you to save energy. In order to control the consumed energy, thermostatic valves in accordance with TS EN 201 are used in places where central heating is used. In central systems, the ambient temperature in the independent sections is set to be at least 15 degrees. With TRV, savings are provided. The end user adjusts the desired room to the desired temperature with the thermostatic valve. There is a 4-stage adjustment possibility on the thermostatic valve. Respectively 2,3,4,5, each step here represents a separate temperature value. In short, TRV is one of the most important product in energy saving.