28
September 2020
Installation, Operation and Maintenance Manual
MAN 571_EAC Rev. 1
Operation and Use
Section 3: Operation and Use
3.4
Calibration of the Angular Stroke
The angular stroke of the yoke can be adjusted between 82°÷98° (±4° with respect to the
nominal positions of complete opening and closing) by means the mechanical stops screwed
into the left side of the housing (open valve) and into the end flange of the pneumatic
cylinder (closing) (Figure 23).
Figure 23
Mechanical Stops
In case of an actuator with two cylinders (Figure 24), both mechanical stops are screwed
on the end flanges of the cylinders.
Figure 24
Actuator with Two Cylinders
