VALVCON® ESR-Series – electronic spring-return electric actuator

Electronic spring-return drives to fail position upon loss of power

The 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.


Long-term reliability

No maintenance required

Low cost of ownership

Easy installation and set up


  • Compact and lightweight
  • Internal energy storage provides power to “safe” position during power outages
  • Field-settable to “fail-clockwise” or “fail-counterclockwise”
  • High standard duty cycle
  • True “two-wire” operation
  • Internal capacitors are rated for a minimum of 100,000 cycles

Common use cases

  • Two-wire applications
  • On/Off service
  • Fail “safe” applications

Applicable industries

  • Water/Wastewater
  • HVAC



Find your closest location and contact us
Contact Metso experts
Your information is safe. Check our privacy notice for more details.
Thank you!
We will shortly contact you. You can send a new inquiry again after 15 minutes.