VALVCON™
ESR-Series electronic spring-return electric actuator
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.
Benefits
Long-term reliability
No maintenance required
Low cost of ownership
Easy installation and set up
Features
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Compact and lightweight
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Internal energy storage provides power to “safe” position during power outages
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Field-settable to “fail-clockwise” or “fail-counterclockwise”
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High standard duty cycle
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True “two-wire”operation
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Internal capacitors are rated for a minimum of 100,000 cycles
Common use cases
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Two-wire applications
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On/Off service
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Fail “safe” applications
Applicable industries
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Water/Wastewater
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HVAC