HEROSE 0142 Serie Betriebsanleitung Seite 23

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.
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Ensure the space around the work is tidy and clean! Parts and tools in loose piles or lying around
are hazard sources.
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If parts have been removed, take care to assemble correctly and re-install all attachment items.
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Before putting back into service, ensure:

All maintenance work has been carried out and completed.

There are no persons in the hazard area.
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All covers and safety devices are installed and operating correctly.
CAUTION
Cold/hot pipelines and/or globe valves.
Risk of injury due to thermal influences!

Insulate the globe valves.
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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.
Globe valve body leaking or broken!

Provide suitable support.
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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 valves with diffusion-tight material.
Improper handling.
Leaking valve or damage to the valve!
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Do not store tools and/or other objects on the valve.
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Do not use tools to increase the torque of the handwheel.
Painting of valves and pipelines.
Impairment of the function of the globe valve / loss of information!

Protect stem, plastic parts and type plate against the application of paint.
Impermissible stress.
Damage to the control mechanism!

Do not use the globe valve as a foothold.
Exceeding the maximum permissible operating conditions.
Damage to the globe valve!

The maximum permissible operating pressure must not be exceeded, and the minimum and
maximum allowable working temperatures must be observed.

Create the welding/soldering seam stepwise so that the warming in the middle of the body does
not exceed the maximum permissible operating temperature.
Welding beads, scale and other contaminants.
Damage to the globe valve!

Take appropriate measures against contamination.
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Remove contaminants from the pipes.
Incorrect earthing during welding work in the pipeline.
Damage to the globe valve (burned spots)!
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Remove bonnet during welding.
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When carrying out electric welding work, do not use functional parts of the globe valves for
earthing.
Operating instructions
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