Thermostatic operated water valves are used for the infinite, proportional regulation of flow quantity, depending on the setting and the sensor temperature. The Danfoss range of thermostatic operated water valves includes a series of industrial products for both cooling and heating regulation. The valves are self-acting, i.e. they operate without the supply of auxiliary energy such as electricity or compressed air. Because the valves constantly match flow quantity to demand they are especially suitable for temperature regulation. The required temperature is maintained constant with no overconsumption of: Cooling water in cooling systems; hot water or steam in heating systems and Thus operating economy is always reasonable