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WARNING
Risk of injury if maintenance work is done incorrectly.
Incorrect maintenance can lead to serious injury and considerable material damage!
Before the start of work, ensure there is sufficient room for doing the work.
Ensure the space around the work is tidy and clean! Parts and tools in loose piles or lying around
are hazard sources.
If parts have been removed, take care to assemble correctly and re-install all attachment items.
Before putting back into service, ensure:
All maintenance work has been carried out and completed.
There are no persons in the hazard area.
All covers and safety devices are installed and operating correctly.
CAUTION
Cold/hot pipelines and/or valves.
Risk of injury due to thermal influences!
Insulate the valves.
Attach warning signs.
Medium escaping at high speed and high/low temperature.
Risk of injury!
Wear the prescribed protective equipment.
NOTICE
Impermissible stresses arising from operating conditions and extensions / added structures.
Valve body leaking or broken!
Provide suitable support.
Additional loads, such as traffic, wind or earthquakes, are not explicitly taken into account by
default and require separate sizing.
Condensation in air conditioning, cooling and refrigeration plants.
Icing!
Blocking of the actuation mechanism!
Damage due to corrosion!
Insulate the valves with diffusion-tight material.
Improper handling.
Leak or damage to the valves!
Do not store tools and/or other objects on the valves.
Do not use tools to increase the torque of the handwheel.
Do not use the valves as a foothold.
Painting of valves and pipelines.
Impairment of the function of the valves / loss of information!
Protect stem, plastic parts and type plate against the application of paint.
Exceeding the maximum permissible operating conditions.
Damage to the valves!
The maximum permissible operating pressure must not be exceeded, and the minimum and
maximum allowable operating temperatures must be observed.
Operating instructions
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