AB-QM - Perfect control and balancing in one compact valve.
The AB-QM is a Pressure Independent Control Valve (PICV): It's a control valve with automated integrated balancing. One simple move to set the AB-QM is all you need to achieve the right flow at the right time. The AB-QM makes reducing costs as easy as setting your watch and is available in various valve sizes ranging from 1/2" to 2" with NPT and Solder connections.