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Edition: 2022-06 Original document - Mi-503 EN
2.6 Safety instructions for pneumatic actuators
Operation of the actuator is always subject to the local safety and accident
prevention regulations.
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.
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.
Warning!
Ensure that personnel who work with, install or repair the actuator are appropriately trained.
This prevents unnecessary damage and accidents or injury to personnel.
The maintenace and assembly personnel must be familiar with the process of installing and
disassembling the actuator in a process line, the special and possible risks of the process and the
most important safety regulations.
The repair and assembly personnel must be familiar with the risks when handling pressurised
equipment, hot and cold surfaces, dangerous substances and substances which represent a
hazard to health.
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!
Protect yourself against noise - use the relevant safety equipment.
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