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Original document - Mi-503 EN Edition: 2022-06
4.2 Assembly of the pneumatic actuator
Warning!
Before carrying out maintenance or repair work, installation and removal of an actuator from a
valve in the pipeline, always depressurise the valve in the pipeline, isolate the valve and remove
the medium.
The pressurised medium may lead to injuries to personnel.
Warning!
Before carrying out maintenance or repair work on the valve with actuator or installation
and removal of the valve from the pipeline, always disconnect the compressed air supply to
the actuator. Single action actuators may move to “open” or “closed” position without being
connected to the air system.
Danger!
Risk of injury!
Do not place hands and fingers in the area of moving parts of the valve or of the actuator when
the actuator is connected to the compressed air supply.
Single action actuators may move to “open” or “closed” position without being connected to the
air system.
1 End stop bolt 3 Bolt 5 Bracket
2 End stop bolt 4 Clamping ring 6 Bolt
Fig.4-2 Assembly of the actuator (schematic diagram)
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