Samson 3374 - Adjusting the Flow Rate

EB 3018 EN 7-3
Operation
7.2 Adjusting the ow rate
7.2.1 DN15 to 50
Type5827 Electric Actuator
1)
Î Adjustment without actuator · See
Fig.7-1
1. Loosen the locking screw (2.6) and turn
the set point adjuster (2.3) clockwise ()
as far as it will go to close the restriction
(2.7).
2. Determine the turns required to achieve
the desired ow rate from the adjustment
diagrams (see Table 7-1).
3. Based on a closed restriction, turn the set
point adjuster counterclockwise () to
adjust the ow rate set point.
4. Check the ow rate at the heat meter and
correct it, if necessary.
5. Once the ow rate is set as required,
lock the setting with the locking screw
(2.6).
6. Close a possibly open bypass valve
again.
7. Lead-seal the setting, if necessary.
8. For a tension-free installation, place the
actuator with retracted stem on the re-
striction connection and fasten using the
coupling nut (see 'Tightening torques' in
Annex).
Î Adjustment with actuator · See Fig.7-1
More details on the electric actuator
1)
in
uEB5827-1 and uEB5827-2.
With Type5827 Electric Actuator
1)
1. Retract the actuator stem (1.1) by turning
the manual adjuster (1.4) counterclock-
wise () or by applying a corresponding
control signal from the control device.
2. Loosen the locking screw (2.6) and turn
the set point adjuster (2.3) clockwise ()
as far as it will go to close the restriction
(2.7).
3. Determine the turns required to achieve
the desired ow rate from the adjustment
diagrams (see Table 7-1).
4. Based on a closed restriction, turn the set
point adjuster counterclockwise () to
adjust the ow rate set point.
5. Check the ow rate at the heat meter and
correct it, if necessary.
6. Once the ow rate is set as required,
lock the setting with the locking screw
(2.6).
7. Close a possibly open bypass valve
again.
8. Lead-seal the setting, if necessary.
1)
Alternatively: Type5824 or Type5825 uEB5824-1
· uEB5824-2