Description
The Johnson Controls JT3213G13A020 Electric Zone Valve is a flow control component used to regulate water circulation in hydronic HVAC systems. This valve features a 1/2-inch sweat connection, a 4.0 Cv flow coefficient for controlled fluid movement, and operates on 24 volts AC at 50–60 Hz with an on/off spring return actuator. It is configured as a 3-way normally closed valve, allowing it to direct or divert water flow between circuits. Installed in fan coil units, baseboard heating, or hydronic distribution systems, it plays a key role in zone control, enabling accurate temperature regulation and coordinated system operation.
