PREMIUM MATERIAL The radiator valve thermostatic head is made of high-quality alloy and plastic, featuring fine workmanship and reliable performance. It is durable, resistant to deformation, and designed for long-term use. 4-PIECE RADIATOR THERMOSTAT This professional 4-piece thermostatic radiator valve set includes M 30 x 1.5 threaded connections, compatible with radiators that have 30 x 1.5 threaded valves from various manufacturers. INTELLIGENT DESIGN The TRV radiator valve features frost protection and adjustable settings, providing precise temperature control. It includes a liquid sensor and zero-position adjustment, suitable for compact radiators with integrated valve systems. The adjustment range includes positions 0, *, 1 to 5. TEMPERATURE SENSING FUNCTION This thermostatic radiator valve responds to changes in room and heating system temperatures, automatically adjusting to maintain desired conditions. It does not have a fixed temperature setting range, allowing flexible operation based on environmental conditions. ADVANTAGES Designed for compatibility with compact radiators that have integrated valve blocks, this thermostatic radiator valve offers frost protection and adjustable heat output. It provides consistent regulation with the help of a built-in liquid sensor and zero-position calibration for improved accuracy.