The most popular valve is the LKD16AN used mainly for when your pipes are coming out of the wall or floor. This ½ inch Preset Flow Rate Angle Valve Body with no cap is an Adjustable Flow Valve only without thermostatic control and connects to the Myson radiator 1/2 inch British thread with a wrench and 1/2 Inch Copper Pipe with a compression fitting. Please keep in mind the BSP threads are a straight running thread NOT tapered like NPT.
If you would like to control the temperature room by room than the Myson 2TRV2HD Valve Head has a sensor element which consists of a liquid-filled capsule with an immersed bellows and push rod. As the ambient temperature rises, the liquid in the sensor’s metal capsule expands and compresses the bellows, causing the integral push rod to close the valve. As the room’s ambient temperature drops, the liquid in the capsule contracts, allowing the bellows to retract the push rod to open the valve. Another special feature of the Myson 2TRV2HD Valve Head is its two integral locking pins, allowing you to lock the temperature at one setting or limit it to a specific range of temperatures. Setting Ambient Range is 46°F to 83°F.