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Installation, Operation and Maintenance Manual
MAN 707 Rev. 3
Section 3: Operation and Use
Operation and Use
March 2022
3.4
Calibration of the Angular Stroke
It is important that the mechanical stops of the actuator (and not those of the valve) stop
the linear stroke at both extreme valve position (fully open and fully closed), except when
this is required by the valve operation.
The setting of the open/closed valve position (upward position) is performed by adjusting
the travel stop screw into the end flange of the assembly spring cartridge cylinder and by
the adjustment of the coupling of valve stem to actuator joint for the downward position.
Figure 9
Figure 10
Mechanical stop on spring cartridge end flange
Coupling joint used as mechanical stopper placed
on actuator pedestal
