Valve Install Instructions

VG7000 Series Bronze Control Valves Product Bulletin 7
VA-8x2x Series Electric Actuators
The VA-8x2x Series Actuators are synchronous
motor-driven, force sensor limited, non-spring return
actuators that feature a 22 lb seating force in a
compact design. The VA-8020 accepts floating control
from a three-wire, 24 VAC control signal. The VA-8122
typically accepts proportional control from a 0 to
10 VDC control signal; however, it can be field adjusted
to accept signals up to 20 VDC. In addition, the
VA-8122 features an input signal reversing feature that
allows it to be used in both heating and cooling
applications.
Note: The VA-8x2x is only available factory mounted
on 1/2 and 3/4 in. valves. Because the VA-8x2x
requires a unique slotted valve stem for factory
assembly, it is necessary to select the S option in the
Stem Type section of Table 2.
VA7810 Series Electric Actuators
The VA7810 Series is a line of motor driven, direct
mount, non-spring return actuators that operate on
24 VAC and are available for use with on/off (floating)
or proportional controllers. The actuator is available
factory mounted to 1/2 through 2 in. valve body styles
with NPT (threaded) end connections. The actuator is
available separately for field mounting to union sweat,
union globe, and union angle VG7000 Series valves.
The actuator delivers a minimum stem force of 180 lb.
Integral auxiliary switches are available for indicating
end-stop position or to perform switching functions. For
proportional models a 0 (2) to 10 VDC signal feedback
is available.
VA7820/VA7830 Series Electric Actuators
The VA7820/VA7830 Series is a line of motor driven,
direct mount, spring return actuators that operate on
24 VAC. The actuators ship already set for 0 to 10 VDC
Proportional control. With a simple change of DIP
switch settings, the actuator can be reconfigured in the
field for On/Off (Floating) Control. Position feedback is
available via switches or a 0 (2) to 10 VDC signal. The
actuator delivers a minimum stem force of 180 lb. If the
power fails, the automatic spring returns the valve stem
up for the VA7820 actuator or the valve stem down for
the VA7830 actuator. A manual override allows manual
positioning of the valve when power is not available.
The actuator is available factory mounted to 1/2
through 2 in. valves body styles with NPT (threaded)
end connections. The actuator is available separately
for field mounting to union sweat, union globe, and
union angle VG7000 Series valves.