Dynamic Valve RA-DV is a series of pressure independentradiator valves, designed for use in 2-pipeheating systems together with all types ofthermostatic sensors with Danfoss RA coupling.RA-DV dynamic valves are fitted with a flowlimiting device for presetting of the maximumwater flow. The valves are available withmaximum water flow of 10 - 135 l/h.RA-DV has a built-in pressure regulator, whichkeeps the differential pressure at a constant levelof 0.1 bar, thus maintaining the set flow.RA-DV valve bodies are manufactured from brasswith a nickel plating. The gland seal pressure pin is chromium steel and works in a lifetime lubricated O-ring. Thecomplete gland seal assembly can be replacedwithout draining down the system.