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9. Mounting

9.1 Actuator check

Prior to mounting the actuator please verify if the device has been delivered in the configuration spec-

ified in your order and if it is suitable for the intended purpose. Check:

- if the positioning travel is sufficient for the valve stroke

- if it is filled with the proper oil type, see section 8.2 or oil label on actuator for details.

- if the proper oil quantity has been filled in

Fasten the separately delivered venting screw in the highest bore (depending on the mounting orienta-

tion).

9.2 Mounting orientation

All mounting orientations seen in Figure 3 to 6 are permissible. To facilitate mounting and maintenance,

however, it is recommended to use orientation IMV 1.

9.3 Mounting to the final control element

- Make sure that the actuator is accessible from all sides to ensure convenient handwheel operation,

electrical connection, and replacement of assemblies.

- Avoid direct exposure to rain, snow and other environmental influences. Select the mounting site

accordingly.

- When mounting the actuator close to heat sources use an insulating layer or shielding.

9.3.1 Valve design requirements

- Consider end position forces of up to 2.5 x the rated force when designing/selecting the valve.

9.4 Adapting the actuator stroke to the valve stroke

+3...5 mm

In factory, the stroke

adjust the stroke (observe the minimum and maximum stroke specified in section "Technical Data")

proceed as described below:

- When mounting the actuator in an orientation other than IMV 1, refill oil according to the specifica-

tions.

- Fully extend the thrust rod using the handwheel until the internal stop is in contact with the drive

sleeve.

- Undo the screws of the thrust rod hood cover and remove the cover.

- Undo the screw plug in the thrust rod hood.

- The two Allen screws can now be accessed through the opening. Undo the screws.

- Retract the thrust rod using the handwheel until the actuator stroke matches the specified valve

stroke.

- Turn the internal stop (slotted ring nut) clockwise using a screw driver, until the stop gets in contact

with the drive sleeve. Then re-turn acround 3 times.

- Refasten the two Allen screws with the specified torque

RSD 10 / RSD 20:

RSD 50:

RSD 100:

RSD 200:

- Fasten the cover of the thrust rod hood, refasten the lateral screw plug, fill in the oil.

specified on the actuator ID label is set. If it should be necessary to re-

26 Nm

40 Nm

69 Nm