Emerson EL-O-Matic F Series - Section 5: Mechanical Stroke Adjustment

Mechanical Stroke Adjustment
Section: 5 Mechanical Stroke Adjustment
This section explains:
• What mechanical stroke adjustment is.
• What the factory settings are.
• How to adjust the travel stops.
EL-O-Matic F actuator sizes 25 to 4000 have two stroke adjustment stops for adjusting
accurately the stroke of the actuator/valve assembly in open and closed position.
The smallest actuator, size F12, does not have limit stops.
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 13 Factory Setting
Closed
-3°10°
Open
80°
93°
Size 950 - 4000Size 25 - 600
90°
Limit Stop 2Limit Stop 1
Closed
-5°10°
Open
80°
95°
90°
Installation, Operation and Maintenance Manual
DOC.IOM.EF.EN Rev. 7
September 2017
19
Section 5: Mechanical Stroke Adjustment