Xylem-Hoffman Specialty 400570 180/220 7/8X16 Actuator

The Xylem-Hoffman Specialty 400570 180/220 7/8X16 Actuator is a self-contained component used in commercial and institutional heating and cooling systems. By operating on valves or dampers, it serves as a temperature regulator, preserving a predetermined temperature. The operation of this electromechanical device depends on vapor pressure. The vapor inside the actuator expands when the ambient temperature rises, pressing a piston or diaphragm. In order to maintain the desired temperature, this movement causes the associated valve or damper to shift, controlling the flow of hot or cold liquids or air.Xylem-Hoffman Specialty's Series 1140 and 1141 temperature regulators are specifically made to work with the 400570 actuator. Common applications for these regulators include chilled water systems, steam heating systems, and hydronic heating systems. They guarantee a constant and effective temperature.