HEROSE 08411, Руководство по эксплуатации, Страница: 21 / 80

Operating instructions
herose.com
15
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 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.
Leakage or rupture of the valve body!

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!
Damage due to corrosion!
 Insulate valves with diffusion-tight material.
Improper handling.
Leaking valve or damage to the valve!

Do not store tools and/or other objects on the valve.
Painting of valves and pipelines.
Functional impairment of the valve / loss of information!
 Protect plastic parts and type plates from being painted over.
Impermissible stress.
Damage to the valve!
 Do not use the valve as a foothold.
Exceeding the maximum permissible operating conditions.
Damage to the 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 valve!

Take appropriate measures against contamination.
 Remove contaminants from the pipes.
Incorrect earthing during welding work in the pipeline.
Damage to the valve (burned spots)!
 Remove bonnet during welding.
 When carrying out electric welding work, do not use functional parts of the valves for earthing.