Product Details
- Voltage24 v
Description
VA-4233 Series Electric Valve Actuators use a stepper
motor to accurately position control valves in HVAC
applications. In the event of a power failure, a spring in
the actuator automatically returns the valve to the full
stem-up position. These direct-mount, spring return
electric actuators provide a minimum 61 lb (271 N)
force output for floating, on/off, or proportional control.
They can be easily field mounted or ordered factory
coupled to Johnson Controls 1/2 through 1-1/4 in.
VG7000 Series Bronze Control Valves, with no
additional linkage required. The VA-4233 Series can also be field mounted to
select Invensys valves, using mounting kits available
from Johnson Controls. Proportional control models
include an AUTO stroke calibration feature that
eliminates the need for manual calibration or
adjustment after installation. Integral auxiliary switches
are available for indicating end stop position or to
perform switching functions. On proportional models,
position feedback is also available through a
proportional DC voltage signal. All models feature a
hand crank for manual positioning of the valve,
independent of a power supply.