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Working in conjunction with primary
loop controllers, these low torque non-spring return actuators will
proportionally position fuel valves, butterfly valves, dampers or other similar
devices. The output shaft moves in both directions and can stop at any point in
the stroke. The hardened steel crankshaft is driven through a train of
precision hobbed gears sealed in oil. This reliable actuator is driven by a
shaded pole motor completely submerged in oil and sealed in an aluminum case,
minimizing maintenance. |
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Four models
are available featuring a standard 100 internal feedback slidewire and a
selection of travel time and rotation limit. Not available with end limit
switches, some models have auxiliary switches and a variety of optional
features. The EA-20 Series are UL and cUL or CSA listed, except for models with
built-in transformers. CSA listed models are: EA21-00003-000-0-00,
EA22-00000-000-0-00 and EA24-00000-000-0-00. It is compatible with the VB-7000-
and VB-9000 valves in this catalog. |