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

High quality: The thermostat head is made of plastic alloy, which is not easily deformed or damaged. Convenient to use and durable.Upper limit of the zeroing ratio: 0, *, 1-5. 5 modulation levels, easy to install. To close the valve, screw it in until the arrow points to 0. Thermostatic valves suitable for valves with M30 x 1.5 threaded connections and M30 x 1.5 threaded connections from radiator manufacturers.Frost protection: Thermostatic valves with anti-freeze and regulating functions. The integrated frost protection allows the use of this thermostatic head even in cold areas and prevents the radiator from freezing. No fixed temperature setting range: this thermostatic radiator valve, which is influenced by both the heating and ambient temperatures, is capable of detecting changes in the outside temperature. Advantage: high-definition internal structure design; the control knob is marked with a scale, allowing you to control the internal temperature according to your needs. This thermostatic valve is widely used for water, non-corrosive liquids, and non-flammable gases.