Angled radiator valves are are the most common of the radiator valves. These valves have a 90 degree angle and are used to connect central heating system hot water pipes to a radiator. The 90 degree angle of these angled radiator valves is useful when the pipes are coming from below the floor or out of the wall. On one end of the valve there is a compression style connection which fits to the pipework and on the other end a male thread which connects to the radiator. The top of the valve has a head which is used to adjust the water flow by increasing it, restricting it or stopping it altogther