Metso's Valvcon ESR-Series electric actuator provides an internal bank of super-capacitor power storage devices that never need replacement.

Designed for two-position operation, it provides true two-wire control: When the actuator is energized it drives to one position; when de-energized the actuator powers itself to the other position. The ESR-Series is appropriate for applications that require operation from a single pair of wires. 

 

¹ -40° - 130° F (-40° - 55° C) with heater and thermostat

» Technical bulletins A204-1 - ESR-Series Electric Actuator