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SEMPELL ATEX FORGED GATE VALVES
Operating and safety instructiOns
Additional safety instructions for valves and accessories being used in a
potentially explosive atmosphere under European Directive 2014/34/EU - ATEX
REFERENCE
These safety instructions are according to
the technical document TR_ATEX_01 as filed
by DNV.
MARKING
Group II, Category 2, atmosphere G and D.
SELECTION
Ensure that:
• The equipment is ATEX marked.
• The indication on the ATEX nameplate are
according to the ATEX zone classification.
• The maximum metal temperature on the
nameplate is according to the maximum
allowed surface temperature due to the
environment/operating conditions.
Verify the ATEX Marking information on the
nameplate
1. The following are the standard ATEX
information on the nameplate, for a
correct use of our equipment:
Ex Ex symbol
II Group II
2 Category 2
G Suitable for Gas atmosphere (see Note)
D Suitable for Dust atmosphere (see Note)
c Manufacturing Safety Design
TR_ATEX_01 Technical file number
X See O.S.I. for other relevant information
The other following information shall be
given, in the same nameplate or in a separate
nameplate:
• Name and address of the manufacturer.
• Designation of type/series.
• Serial number.
• Year of construction.
• CE marking.
• The temperature classification of valves is
entirely dependant on the process fluid. If
relevant, this must be established by the
end user, not exceeding the maximum
temperature marked on the nameplate.
• In presence of dangerous fluid, before
starting the operation ensure that no release
of fluid to the atmosphere can take place.
INSTALLATION
The end user shall perform the following
checks:
• Use appropriate tooling to the working area,
according to EN1127-1, Annex A!
• Install the product at ambient temperature!
• Ensure that NO metallic shock or impacts
are made to the equipment or to the adjacent
pipework!
• Ensure that the equipment is suitably
earthed!
• If applicable (i.e. in case an exothermic
reaction could take place), appropriate
measures shall be provided to avoid that the
hot surfaces are potentially source of ignition
of the surrounding environment!
• If the equipment is located in open areas
without a good aeration, blow-down and
venting shall be piped to a safe location!
• If the valve is supplied with a protective
housing around the stem, venting of that
housing shall be piped to a safe location!
• Should the actuator be suitable for different
atmosphere conditions, the equipment
valve + actuator shall be used ONLY in the
more restrictive (conservative) conditions.
WARNING
Do not install the equipment in a closed,
potentially explosive environment!!
Do not modify any part of the equipment!!
Do not install the equipment for use in Zone 0!!
VCOSI-02221-EN 18/02© 2017 Emerson. All Rights ReservedEmerson.com/FinalControl
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