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VA7800 Series Electric Valve Actuators Product Bulletin
1
The VA7800 Series of Electric Valve Actuators control
VG7000 Series Bronze Globe Valves in Heating,
Ventilating, and Air Conditioning (HVAC) systems. The
VA7800 Series produces a minimum linear output force
of 180 lb (800 N) and is ordered field mounted or
factory coupled to 1 in. and 2 in. VG7000 Series
Bronze Globe Valves with brass trim and to 1/2 in.
through 2in. VG7000 Series Bronze Globe Valves with
stainless steel trim. All actuators are direct mount and
available in both Spring Return and Non-Spring Return
models.
Spring Return models ship from the factory set for
DC 0 to 10 V Proportional Control. With a change of
DIP switch settings, this model can be field configured
to On/Off or Floating Control. In addition to these
settings, optional auxiliary switches are also available.
Non-Spring Return models are available in AC 24 V
On/Off (Floating) Control, or DC 0 to 10 V Proportional
Control. Models are available with or without optional
auxiliary switches.
Figure 1: VA7800 Actuator
Table 1: Features and Benefits
Features
Benefits
Automatic Stroke Adjustment
Provides easy, quick, and precise commissioning.
Manual Override as Standard
Allows manual positioning of valve for easy commissioning and servicing.
NEMA 2 (IP54) Enclosure Protection
Allows installation in a wide range of environments.
Unique Swing-Gate Yoke
Offers fast and secure attachment to the valve.
Brushless Motor
Ensures low energy consumption and long life.
Proportional Model
Enables one model to be used for various control types.
Force-Controlled Motor Shut-Off
Reduces energy consumption, wear of the actuator, and protects the valve from
excessive forces.
Stroke Position Indicator
Gives visual indication of valve operation, provides automatic adjustment of
stroke indicators during first cycle of operation.
Status Light-Emitting Diode (LED)
Gives visual indication of actuator status and assists with diagnostic.
Optional Integrated Auxiliary Switches
Provides adjustable switch points with line voltage capability.
Integral Cable with Colored Conductors
Simplifies installation and field wiring.
Integral Connector for 3/8 in. (10 mm)
Flexible Metal Conduit (FMC)
Simplifies installation and field wiring.
Underwriters Laboratories Inc.® (UL)
and CE Compliant
Provides internationally recognized regulatory agency approval.
VA7800 Series Electric Valve Actuators
Product Bulletin
VA7800 Series
Code No. LIT-12011474
Issued June 2018