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SERIES: KM-O(ST) & KM-T(ST)
Operating and maintenance instructions
5. ASSESSMENT OF BALL VALVE AS
PER DIRECTIVE 94/9/EC (ATEX)
An Ignition Hazard Assessment as per DIN EN 13643 Part 1 has
been performed for ball valves type KM-O and KM-T. However,
in case of an actuator/valve combination, this only applies to
the ball valve itself.
No potential ignition source was found. Thus, the ball valves
fall outside the scope of Directive 94/9/EC and therefore shall
not be marked according to this Directive.
DANGER
A valve/actuator combination has the same ignition
hazard as identified by the actuator manufacturer in the
Ignition Hazard Assessment. The operator shall observe
the respective operating instructions.
Thus, the use of actuated ball valves in areas with
potentially explosive atmosphere is permitted within the
scope of intended use. It is however necessary to ensure
on site that
> ball valves used in such a way have been included
in the potential equalization measures of the system
section,
> der Verwender einer Kombination Antrieb/Armatur
eine Zündgefahrenbewertung des Systemabschnitts
durchführt.
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