Anyone who has walked into a room and adjusted the little dial on top of a radiator has used a […]
How Does a TRV Work in a Radiator System?
Anyone who has walked into a room and adjusted the little dial on top of a radiator has used a thermostatic radiator valve without necessarily thinking about the engineering behind it. Thermostatic radiator valves, commonly known as TRVs, are one of the simplest and most effective tools for controlling comfort and energy use in heating systems. They are found in homes, offices, schools, and hospitals across the country, quietly regulating how much hot water flows into a radiator based on the temperature of the room around it.In this article, we will explore how thermostatic radiator valves actually work, why they remain such a valuable part of modern heating design, and how they relate to more advanced technologies like the pressure-independent control valve and energy valve that are increasingly used alongside them in larger hydronic systems.










