ISO 5211 or DIN 3337
The actuator bottom flange is in accordance with ISO 5211
(or DIN 3337) international standard and incorporates a star
shaped female drive for flexibility to fit various valve output
shafts. The valve can be attached by a bracket or mounted
directly onto the actuator, using one of the various ISO hole
patterns.
TRAVEL ADJUSTMENT
The actuator comes factory adjusted to produce 90
°
rotation.
The rotation is restricted by the stop (13) and four adjustment
screws (19) which provide fine tuning or a limiting stroke.
Installation, Operating & Maintenance instructions
PAGE 4
Pressure exiting Port A to close:
Air released from center chamber. Springs drive pistons
inward. Pinion rotates clockwise (CW).
NAMUR Solenoid Mounting
Air supply connection is done by mounting a solenoid directly
onto the Namur cover which has a mounting pad conforming
to the Namur standards. (Only Solenoids made to the
NAMUR standard can be mounted in this way.) The Compact
II actuator can also be piped with solid or flexible tubing
from remote
solenoid valves.
The screws are threaded into the actuator body and are
diametrically opposed to create simultaneous and equal
forces on opposite sides of the stop to eliminate off-center
forces.
The standard stop screws
allow adjustment of +/-5
°
in
the travel limits.
Other Intermediate positions
can be achieved with a longer
set of stop screws which will
enable travel from
0
°
to
20
°
and from
90
°
to
70
°
rotation.
0
°
90
°
+5
°
-5
°
95
°
85
°
70
°
20
°
INDICATOR & PUCK
All actuators are assembled with a highly visible indicator
or puck. The indicator and puck have interchangeable ”snap-
on” flow direction arrows for identification of valve position.
The arrows provide any type of pattern
according to the valve ports.
Use a screw driver or sharp
object at the arrow head to
push it out.
TWO WAY
T - PORT
L - PORT
The puck has three position signaling
inserts screws to allow
signaling of any position. The puck is
screwed to the
pinion Namur thread.
