Power Failure Detection and Low Voltage Indication Prevent Data Corruption of the Actuator's Memory and Warns of Insufficient Supply Voltage
AUTOCAL Pushbutton Allows the Actuator to Define the Control Input Range Proportionally Over the Stroke
Selectable Direction of Action, Drive Down or Drive Up, Provides Application Flexibility
Light‑Emitting Diode (LED) Reduces Commissioning Time and Displays Operating Status
Simplified Setup and Adjust Procedures Decrease Installation Costs
Wide Range of Control Inputs Meets the Needs of Most Applications
The VA‑8122 Proportional Valve Actuator is an electric actuator that provides proportional control of valves with up to a 5/16 in. stroke in Heating, Ventilating, and Air Conditioning (HVAC) applications. This compact, non‑spring return actuator has a 22 lb minimum seating force in a compact, easy‑to‑install package. The VA‑8122 can be ordered factory coupled to the 1/2 in. or 3/4 in. VG7000 Series bronze valves for hot or cold water service only. The VA‑8122 can be used for retrofits of VT Series Terminal Unit Valves (with slotted stems) and VB‑5x39 Series Flare Valves. Refer to the appropriate valve literature for more information.
