Thermostatic corner kit Raftec KNT11 - allows you to automatically adjust the flow of coolant to the radiator, maintaining the room temperature at a given level. The set room temperature is controlled by a TW3015 thermal head. A liquid thermoelement located inside the sensor reacts to changes in air temperature in the room. As a result, the head rod moves, ensuring the opening or closing of the thermostatic valve PKPT11, thus controlling the volume of coolant entering the radiator. When the required air temperature in the room is reached, the thermal head gradually closes the valve, allowing only the required amount of coolant to flow to maintain the set temperature. The return valve PNRK 11 acts as a shut-off valve, which can be used to shut off the radiator, and as a tuning valve. Presetting the valve can be done by turning the valve stem using a hexagon and thereby regulating the flow of coolant. Setup and installation information can be found in the valve instructions.