Johnson Controls T-3311-1 Valve Thermostat Direct Action 15-20 PSI Reverse External

The Johnson Controls T-3311-1 Valve Thermostat is a accurate instrument in HVAC systems that maintains temperature by managing the flow of fluids through valves. This thermostat works with temperatures ranging between 20°F and 150°F and pressures ranging between 15-20 PSI and is vital for maintaining the right heating or cooling conditions in many facilities. It works based on temperature change to function the thermostat closes or opens the valve to increase or decrease the rate of fluid circulation depending on the temperature difference from the set value.