14- 1213- 8, Rev. C
Product/Technical Bulletin VA-8122
Issue Date March 2016
© 2016 Johnson Controls, Inc.
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Part No. 14-1213-8, Rev. C
www.johnsoncontrols.com
Code No. LIT-977380
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.
Figure 1: VA-8122-1 Valve Actuator
Features and Benefits
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AUTOCAL Pushbutton
Allows the actuator to define the control input
range proportionally over the stroke
q
Simplified Setup and
Adjustment Procedures
Reduces installation costs
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Selectable Direction of
Action, Drive Down (DD) or
Drive Up (DU)
Provides application flexibility
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Wide Range of Control
Inputs (Voltage and
Current)
Meets the needs of most applications
q
Power Failure Detection;
Low Voltage Indication
Prevents data corruption of the actuator’s
memory and warns of insufficient supply
voltage
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Light-Emitting Diode (LED)
Reduces commissioning time and displays
operating status
VA-8122 Proportional Valve Actuator
