Description
The Johnson Controls SET29A-632R Sensing Element Valve is a vital part of hydronic HVAC systems that control the water flow according to its temperature. This is a highly polished cast iron or brass valve that has NPT threaded ends at 2” or 2.5” depending on the water flow desired. Inside it has a temperature-sensitive component that increases or decreases in size depending on the water temperature around it. This movement within the element mechanically opens or closes the valve and any hot water-connected devices.
