Corner TRV radiator valves are an essential component in modern central heating systems, designed to regulate the temperature of individual radiators efficiently. TRV stands for Thermostatic Radiator Valve, and the “corner” design refers to the angled connection that allows pipework to enter the radiator from the wall in a neat and space-saving way. These valves are especially popular in compact rooms and installations where pipe alignment requires a 90-degree connection.