Lutz B70V, Translation Of The Original Instructions

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8.5 Explosion protection regulations
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 significant regulations.
Within the EU are valid:
- DIRECTIVE 1999/92/EC on minimum requirements for im-
proving the safety and health protection of workers potentially
at risk from explosive atmospheres
- EN 60079-0 (IEC 60079-0)
Electrical appartus for potentially explosive atmospheres
- general requirements
- EN 60079-14 (IEC 60079-14)
Electrical appartus for potentially explosive gas atmospheres
- part 14: electrical installations in hazardous areas (other
than mines)
- EN 60079-10 (IEC 60079-10)
Electrical appartus for potentially explosive gas atmospheres
- part 10: classification of hazardous areas
- DIN EN 1127-1
Explosive atmospheres - explosion preventation and protec-
tion - part 1: basic concepts and methodology
- Regulation (EC) 1272/2008 (CLP)
National rules and regulations have to be observed.
8.6 Classification of zones for explosion hazard
areas
Explosion hazard areas are defined as areas in which explosive
atmospheres may occur in potentially dangerous 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 flammable
gases, vapours or mists are classified as follows:
a) Zone 0 encompasses areas in which a dangerous explosive
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 briefly.
8.7 Explanation of the zone classification
when using drum eccentric screw pumps for
flammable liquids
- Zone 0 generally prevails inside the drum or container.
- The boundary between zone 0 and zone 1 is determined
by the bunghole of the drum or the upper edge of the con-
tainer.
- Rooms in which media are transferred from one drum or
container to another are always classified 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 flammable 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. Exceptions may only
be made by the local supervisory authorities.
3. Lutz motors of series ME with „increased-safety enclo-
sure“ comply with the regulations unit group II, category
2 G. They are allowed for use in zone 1.
8.8 Traceability
Products manufactured by Lutz-Pumpen for potentially explo-
sives atmospheres are identified by an individual batch number
which allows them to be traced. This number provides the year
of construction and the design of the equipment.
This product is an appliance for potentially explosive atmos-
pheres. In this regard and in compliance with the ATEX Directive,
provisions must be made to ensure ascending and descending
traceability.
Our ATEX notified quality system ensures this traceability 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.