Lockshield valves are fitted opposite TRVs or manual valves and regulate the flow through a radiator.
Manual valves or wheelheads are valves that can be opened or closed by hand.
Radiator valves that turn themselfs up and down according to a user-defined program. Saves around 25% by switching off unused rooms.
Accessories for radiator valves
Thermostatic radiator valves or TRVs are valves that open or close according to the current room temperature