Thermostatic valves are designed for automatic or manual regulation of the flow rate of a heat carrier with a temperature of up to 120ºС and an operating pressure of up to 1.0 MPa inclusive through a heater of a water heating system. As a working medium, in addition to water, other media that are neutral with respect to valve materials can be used. To perform the function of automatic regulation and to achieve maximum efficiency, heating systems are used in tandem with a thermostatic head or a servo drive. The valves have a flow presetting function. They comply with the requirements of EN 215, part 1 and GOST 30815. User control of the heat carrier flow can be carried out: - when equipped with a thermostatic head - depending on the temperature of the internal air in the room; - when equipped with a servo drive - at the command of the control automatic control device (room thermostat, block of general house automation, etc.). The use of thermostatic valves with thermal heads allows you to automatically maintain the air temperature in the premises at a given level with an accuracy of 1C.