4.3.1. Output drive for coupling
Design Figure 9: Valve attachment via coupling
[1] Actuator worm wheel with internal splines
[2] Splined plug-in coupling
[3] Valve shaft (example with key)
Application
●
For valve attachments according to EN ISO 5211
●
For rotating, non-rising valve stem
4.3.1.1. Part-turn actuator (with coupling): mount to valve
Unbored couplings or couplings with pilot bore must be machined to match the valve
shaft prior to mounting the part-turn actuator to the valve (e.g. with bore and keyway,
two-flat or square bore).
Information Assemble valve and part-turn actuator in the same end position. As standard, the
part-turn actuator is supplied in end position CLOSED.
●
Recommended mounting position for butterfly valves: End position CLOSED.
●
Recommended mounting position for ball valves: End position OPEN.
Assembly steps
1. If required, move part-turn actuator in same end position as valve using the
handwheel.
2. Clean mounting faces, thoroughly degrease uncoated mounting surfaces.
3. Apply a small quantity of grease to the valve shaft [2].
16
SQ 05.2 – SQ 14.2 / SQR 05.2 – SQR 14.2 Control unit - electromechanical
Assembly AC 01.2 Intrusive Modbus RTU
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