Section 5: Mechanical Stroke Adjustment - Emerson Bettis Q Series Installation, Operation And Maintenance Manual

Installation, Operation and Maintenance Manual
DOC.IOM.BQ.E Rev. 3

Section 5: Mechanical Stroke Adjustment

This section explains:
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Bettis Q-Series actuator sizes 40 to 1600 have two stroke adjustment stops for adjusting
accurately the stroke of the actuator/valve assembly in open and closed position.
The factory setting of the stroke is 90°. Most quarter-turn valve applications will not require
readjustment of these settings.
If required the stroke can be adjusted by means of two-stroke adjustment bolts.
Figure 18
80°
95°
Open
Mechanical Stroke Adjustment
What mechanical stroke adjustment is.
What the factory settings are.
How to adjust the travel stops.
Factory Setting
Size 950 - 1600
Size 40 - 600
Closed
-5°
10°
10°
90° 90°
80°
93°
Open
Section 5: Mechanical Stroke Adjustment
Closed
-3°
April 2019
Limit Stop 1 Limit Stop 2
25