Key benefits Automatic temperature control: a sensitive temperaturesensing element opens and closes the valve to hold the set room temperature without manual adjustment. Energy and cost savings: precise flow regulation prevents overheating and reduces wasted energy in hydronic systems, lowering operating costs. Reliable underfloor performance: engineered as a vertical angle valve for directvalve underfloor heating to deliver even heat distribution. Flexible and durable: five selectable temperature settings (including a frost protection mode) and robust copper/plastic construction for long service life. Main features and specifications Thermostatic control valve: automatically adjusts valve opening in response to room temperature via a sensitive sensor element to maintain the desired climate for floor heating systems. Radiator valve with energysaving design: limits excess heat output by accurately regulating flow in hydronic heating setups. Special valve for floor heating: vertical angle style optimized for directvalve underfloor heating installations. Sizes / connections: compatible with DN15, DN20, and DN25 pipe connections. Adjustable settings: five userfriendly temperature positions plus frost protection mode for seasonal or occupancybased control. Materials: combination of copper and plastic components for corrosion resistance, mechanical strength, and longlasting function. Why customers choose this valve Saves time and effort by maintaining set temperatures automatically, eliminating frequent manual adjustments. Improves comfort with consistent floor and room temperatures and fewer hot/cold swings. Reduces energy waste and operating costs by controlling flow precisely instead of running systems at full output. Fits common pipe sizes (DN15/DN20/DN25), making it suitable for many residential and commercial hydronic installations. Typical use scenarios 1) Residential underfloor heating: install as the directvalve on a living room or bathroom underfloor circuit to maintain a steady, comfortable floor temperature and avoid overheating when rooms are unoccupied. 2) Apartment radiator upgrades: use the thermostatic radiator valve on radiators in multiunit buildings to reduce energy use and balance temperatures between rooms. 3) Small commercial spaces: apply in office or retail hydronic systems to maintain consistent indoor climates while lowering heating costs and preventing freeze risk with frost protection mode. Installation and compatibility notes Designed for vertical angle installation in directvalve underfloor systems and standard hydronic radiator setups. Select the DN15, DN20, or DN25 size to match your pipework. Ensure compatibility with your system's pressure and connector standards; professional installation is recommended for performance. Materials and performance Copper and plastic construction provides a balance of durability and corrosion resistance. Sensitive sensing element provides stable, automatic adjustments to maintain set temperature and improve overall system efficiency.