March 2024
Safety Guide
DOC.SG.HX.1 Rev. 2
11
Safety Instructions in Explosive Atmosphere
Section 5: Safety Instructions in Explosive Atmosphere
5.3 Safety Instructions
1. Before the installation, please carefully read the service
instructions. Emerson is not responsible for damages
caused by operations not complying with the instructions
contained in such manuals.
2. All the operations shall be done by a trained and qualied
operator. All maintenance operations must be performed
in accordance with the instructions detailed in the
maintenance manual.
3. The assembly cannot be installed and used in classied
areas as zone 0 to 20, mines (group I).
4. The equipment shall be installed in a place where the risk of
lightning is covered by the relevant industrial code of practice.
5. Assembly, disassembly and maintenance, is only allowed at
the actuator, when, at the time of the activity, there are no
explosive mixtures.
6. During maintenance operations, the user must take all
appropriate measures to prevent risks related to the toxicity
of substances, using appropriate protective equipment
(e.g., gloves, goggles, face mask), according to the extent
provided the technical and organizational point of use and
the recommendations provided in the specications of the
used substances.
7. All the mechanical components do not have ignition sources
during the normal working process. The user shall check
periodically the vibration presences and/or abnormal noises
and it must stop the unit immediately, check the causes and
contact the manufacturer.
8. Actuators do not have an inherent ignition source due
to electrostatic discharge, but explosion hazards may be
present due to the discharge of static electricity from other
valve assembly components.
i. To avoid personal injury or property damage, make
sure that the valve is grounded to the pipeline before
placing the valve assembly into service.
ii. Use and maintain alternate shaft-to-valve body bonding,
such as a shaft-to-body bonding strap assembly.
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