The valve is closed after
a clockwise rotation.
The valve is open after
a counterclockwise rotation.
Section: 4 Installation
This section explains:
• The actuator rotation direction.
• In which position the actuator will end after a failure.
• Principles of operation:
— Solenoid operation.
— Double acting and Spring return operation.
• Assembly codes.
• Actuator to valve assembly.
4.1 Before You Start
SAFETY
In case of an air or electrical failure, it is important to know the behavior of the actuator.
Before mounting the actuator on a valve, consult the following sections below.
4.2 Actuator Rotation Direction
4.2.1 Valve Rotation
For the following paragraphs we assume that valves rotate as indicated in gure 3.
Figure 3 Normal valve rotation
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