Description
1/8″ NPT Hear-Gard one-pipe steam valve with Taco model 5401 direct mounting thermostat operator. The thermostatic head on this valve contains a temperature sensitive wax which expands and contracts on rise and fall of temperature in the sensed area. When the temperature rises above the selected temperature, pressure from the expanding wax closes the valve, preventing or restricting the flow of steam through the unit. When the room temperature drops below the selected temperature, the valve opens and allows an increase of steam flow through the radiation unit. This modulating process continues automatically to maintain the selected temperature.
