General description The 3-piece professional thermostatic radiator head is designed for valves with M 30 x 1.5 threaded connections, making it compatible with various radiator manufacturers. Constructed from high-quality brass, steel, and plastic, this TRV thermostatic radiator head is durable and resistant to deformation or damage. It is easy to use and offers a long service life. Technical specifications Thread size: M 30 x 1.5 Material: Brass, steel, plastic Adjustment levels: 5 modulation levels Zero adjustment ratio: 0.1-5 Usage The TRV radiator thermostat does not have a fixed temperature setting range. It can detect changes in both heating and room temperatures, as well as outdoor temperature variations. The system includes frost protection and an adjustment function for enhanced control.