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Lutz B70V - Explosion Protection Regulations; Classification of Zones for Explosion Hazard Areas; Explanation of the Zone Classification When Using Eccentric Screw Pumps for Flammable Liquids; Traceability

Lutz B70V
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23
0698-050 B70V/B70V-SR - 04/19
en

A number of regulations have to be observed by the
operator for use of equipment in hazardous areas. The
following list renders an overview of the signicant
regulations.
Within the EU are valid:
- DIRECTIVE 1999/92/EC on minimum requirements for
improving the safety and health protection of workers
potentially at risk from explosive atmospheres
- EN 60079-0 (IEC 60079-0)
Electrical appartus for potentially explosive atmos-
pheres - general requirements
- EN 60079-14 (IEC 60079-14)
Electrical appartus for potentially explosive gas at-
mospheres - part 14: electrical installations in hazard-
ous areas (other than mines)
- EN 60079-10 (IEC 60079-10)
Electrical appartus for potentially explosive gas at-
mospheres - part 10: classication of hazardous areas
- DIN EN 1127-1
Explosive atmospheres - explosion preventation and
protection - part 1: basic concepts and methodology
- Regulation (EC) 1272/2008 (CLP)
National rules and regulations have to be observed.


Explosion hazard areas are dened as areas in which
explosive atmospheres may occur in potentially dan-
gerous volumes on account of local and operational
conditions. Such areas are subdivided into a number
of zones.
Areas in which explosions may occur on account of am-
mable gases, vapours or mists are classied as follows:
a) Zone 0 encompasses areas in which a dangerous ex-
plosive atmosphere persists constantly or for a long
time.
b) Zone 1 encompasses areas in which a dangerous
explosive atmosphere must be expected occasionally.
c) Zone 2 encompasses areas in which a dangerous
explosive atmosphere is expected only rarely and
briey.



- Zone 0 generally prevails inside the drum or con-
tainer.
- The boundary between zone 0 and zone 1 is deter-
mined by the bunghole of the drum or the upper
edge of the container.
- Rooms in which media are transferred from one drum
or container to another are always classied as zone
1.
- For drum and container pumps this means that:
1. Only pump tubes of unit group II, category 1/2
G may be used to pump ammable liquids. They
comply with the regulations for use in zone 0.
2. Regardless of their type of protection, explosion
proof motors may not be used in zone 0. Excep-
tions may only be made by the local supervisory
authorities.
3. Lutz motors of series ME with „increased-safety en-
closure“ comply with the regulations unit group II,
category 2 G. They are allowed for use in zone 1.

Products manufactured by Lutz-Pumpen for potentially
explosives atmospheres are identied by an individual
batch number which allows them to be traced. This
number provides the year of construction and the de-
sign of the equipment.
This product is an appliance for potentially explosive
atmospheres. In this regard and in compliance with
the ATEX Directive, provisions must be made to ensure
ascending and descending traceability.
Our ATEX notied quality system ensures this traceabil-
ity up to the initial point of delivery.
Except as otherwise agreed in writing, anyone that
guarantees to redeliver said equipment undertakes to
put in place a system that allows for equipment that is
not conform to be recalled if necessary.

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