Radiator valves

A control valve will be fitted to each end of your radiator. One is designed to open and close the radiator and the other valve which is called a lock shield valve is fitted at the other end of the radiator and is not adjustable with a plastic dome shaped cap Acton Plumbers can fit radiator valves.The first valve, used to open and close the radiator, may consist of a simple plastic headed on/off control valve or a TRV, better known as a thermostatic radiator valves. For years it has been the heating system installer who are chosen whether to use a manual valve or thermostatic radiator valve, but Building regulations dictate that TRV’s must be used. The only radiators but can be fitted with a manual valve of those connected to radiators in rooms where a room thermostat has also been installed. This thermostatic valve automatically closes off the water supply to the radiator when the desired temperature in the room is reached, which is good for saving fuel and also ensuring that heat is not supplied wastefully.The lockshield valve, which is located at the opposite end of the radiator, has a specific purpose in that it will control the amount of water that flows through the radiator. It is identical to the manual on/off valve. This valve however has been pre-adjusted with a spanner at the time of installation during balancing of the system.Below is a note on Balancing:In order to make sure that the first radiator on the heating circuit does not take all the hot water flow from the boiler, as it is the shortest route, the lockshield valve is partially closed. Having this valve open by only half a turn, the water is forced to continue along the heating circuit to the next radiator. So the radiator lockshield valves are also adjusted as required to force the floor water throughout the whole system. An Acton Plumbers can balance a heating system.