4 PCS Thermostatic Radiator Head, TRV M30 x 1.5 Radiator Thermostatic Head, Thermostatic Radiator Valve, Radiator Valves for Home Heating System

General Description: The thermostatic radiator head is designed to provide precise temperature control in your home heating system. Made of high-quality plastic and alloy, it is resistant to deformation and damage. This thermostatic valve is suitable for M30 x 1.5 threaded connections, making it compatible with many radiator models. It also incorporates an anti-freeze function to prevent the radiator from freezing in cold climates. Technical Specifications: Connection Type: M30 x 1.5; Upper Limit of Zeroing Ratio: 0, *, 1-5; Modulation Levels: 5. Operation: To close the valve, simply screw the head until the arrow points to 0. The internal design detects changes in ambient temperature, providing automatic adjustment based on external conditions. Other Information: Integrated anti-freeze protection. Suitable for water, non-corrosive liquids, and non-flammable gases.