Description
The Johnson Controls VG1245AD+9T4GGA 2-Way NSR Proportional Valve 1/2″ is used in hydronic HVAC systems to adjust the flow of water based on a 24 V signal. It has a 1.2 Cv flow coefficient that ensures the hot or chilled water is accurately regulated using the heating and cooling circuits, depending on demand. It is installed in the piping of air handlers, boilers, or fan coil units and is coupled with thermostats and building automation to control flow continuously and not just to open or close.
