Full Stroke Adjustment Option - Emerson FieldQ Series Product Data Sheet

Product data sheet
1.606.06 Rev. 0 page 1 of 3
October 2017
FieldQ Valve Actuator

Full Stroke Adjustment Option

Description
FieldQ actuators with the Full Stroke Adjustment option are
used where the maximum opening (or closing) position of the
valve needs to be reduced, for instance to adjust the
maximum flow capacity of a remote operated valve to 50%.
Operation
Full Stroke Adjustment screws (1) are fitted to both end caps and
the screw length is such that adjustment is possible through the
full outward stroke/rotation of the actuator.
Screwing in the Full Stroke Adjustment screws will reduce
the stroke.
Note:
- Only the outward stroke can be adjusted with the Full Stroke
Adjustment screws.
In case of assembly code CW, limit stop (3) is redundant.
In case of assembly code CC, limit stop (2) is redundant.
- For the inward stroke the standard limit stops can be used:
- Limit stop (2) for assembly code CW
- Limit stop (3) for assembly code CC
Rotation
Factory set:
Adjustable range:
(1) Full stroke adjustment screws:
(2) Standard stroke adjustment screws:
90°
+15°
0°
-3°
Adjustable range:
Standard stroke adjustment
screws(2, 3)
FieldQ
Copyright © Emerson. The information in this document is subject to change without notice. Updated data sheets can be obtained from our website
www.emerson.com/fieldq or from your Emerson Automation Solutions - Actuation Technologies Center:
America's: +1 281 477 4100 Europe: +36 22 53 0950 Asia/Pacific: +65 67 77 8211
90°±0.5°.
-3° to +93°
-3° to 15°
90°
93°
0°
-3°
Adjustable range:
Full stroke adjustment
screws (1)
Sizing
Applying the stroke adjustment option will change the torque
output level of spring return actuators depending on the
amount of stroke adjustment. Please consult page 2 and the
torque data sheets (1.602.02 Nm or 1.602.03 lbf.in) to define
the torque output of a spring return actuator.
1
Fig. 1. Reducing the flow throught the valve with full stroke
adjustment option on the actuator.
Dimensions
The dimensions of the actuator remains the same except the
length of the actuator due to the longer Full Stroke
Adjustment screw (see table below).
Length Full stroke adjustment units at 90° rotation
Spring return
mm Inch
QS0040 234 9.21
QS0065 299 11.77
QS0100 317 12.48
QS0150 340 13.39
QS0200 456 17.95
QS0350 457 17.99
QS0600 541 21.30
QS0950 585 23.03
QS1600 683 26.89
FieldQ
g t h
L e n
96°
1
2
3
Double acting
mm Inch
QD0040 175 6.89
QD0065 208 8.19
QD0100 231 9.09
QD0150 257 10.12
QD0200 313 12.32
QD0350 332 13.07
QD0600 417 16.42
QD0950 456 17.95
QD1600 562 22.13