VCOSI-02222-EN 18/03
ATEX - FORGED GLOBE VALVES
Operating and safety instructiOns
© 2017 Emerson. All Rights Reserved.
Before installation these instructions must be fully read and understood
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 (see page 2).
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!!
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ATEX - FORGED GLOBE VALVES
Operating and safety instructiOns
TAGPLATE REFERENCE
Code Meaning
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 It means “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.
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Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
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andthe Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by
our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without
notice.
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