Fisher® 1066 and 1066SR0 pages

Product Bulletin
61.2:1066
September 2002
1066 and 1066SR Actuators
Type 1066 and 1066SR Piston Rotary Actuators
Type 1066 and 1066SR actuators (see figures 1 and
2) are compact, piston, rotary actuators for throttling
(with Type 3710 pneumatic or Type 3720
electroĆpneumatic positioners) or onĆoff applications.
The Type 1066 actuator is doubleĆacting. The Type
1066SR actuator is springĆreturn, which provides
automatic failĆopen or failĆclose action. Both
actuators can be used on Design V150, V200, V300,
V500, and CV500 valves; or on Type 8510B, 8532,
8560 and 9500 butterfly valves.
For the Type 1066 actuator, piston movement is
accomplished by loading air pressure on one side of
the piston while unloading air pressure from the
other side (see figure 4). For the Type 1066SR
actuator, piston movement is accomplished by
loading air pressure on the top side of the piston with
opposing spring compression force applied on the
bottom side (see figure 4). In both cases, the piston
moves a lever to open or close the valve.
Both actuator types are field reversible between
pushĆdownĆtoĆclose (PDTC) and pushĆdownĆtoĆopen
(PDTO). Type 1066SR actuators are field reversible
between failĆopen and failĆclose.
For Type 1066 actuators, a positioner, a loading
solenoid, a fourĆway switching valve, or two
threeĆway valves are required for operation of the
actuator.
Features
DĄLonger Service LifeĊHeavy duty construction
provides corrosion resistance and overpressure
protection.
Figure 1. Design CV500 Flangeless Valve with
Type 1066 Actuator
DĄMinimal Lost MotionĊLinkage consists of
singleĆjoint piston rod/lever connection and splined
lever/shaft connection.
DĄEasyĆtoĆUse Travel IndicatorĊHighly visible
travel indicator gives valve position at a glance.
DĄVersatileĊActuator is easily converted
between pushĆdownĆtoĆopen and
pushĆdownĆtoĆclose action. Actuator/valve
combination may be mounted in any of the positions
shown in figure 3. Actuator travel is adjustable
between 60 and 90 degrees with standard units.
DĄEnclosed LinkagesĊActuator/control valve
linkage is completely enclosed for personal
protection, while the valve packing remains
accessible for adjustment.
D100096X012
DĄCompact DesignĊHousing and cylinder
constructions occupy little space and provide for
quick and easy installation.
W5000 / IL
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