Lutz MD-1 User Manual

14
GB
6.3 Classification of zones for explosion hazard
areas
Explosion hazard areas are defined 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
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 occasio-
nally.
c) Zone 2 encompasses areas in which a dangerous
explosive atmosphere is expected only rarely and
briefly.
6.4 Explanation of the zone classification when
using drum pumps for flammable liquids
- Zone 0 generally prevails inside the drum or contai-
ner.
- The boundary between zone 0 and zone 1 is determi-
ned 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 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. Excep-
tions may only be made by the local supervisory
authorities.
3. Lutz motors of range MD are suitable for applica-
tion in zone 1.
6.5 Traceability
Products manufactured by Lutz-Pumpen for potentially
explosives atmospheres are identified by an individu-
al 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
EC ATEX 94/9 Directive, provisions must be made to
ensure ascending and descending traceability.
Our ATEX notified quality system ensures this traceabi-
lity up to the initial point of delivery.
Except as otherwise agreed in writing, anyone that gu-
arantees to redeliver said equipment undertakes to put
in place a system that allows for equipment that is not
conform to be recalled if necessary.

Lutz MD-1 Specifications

General

Brand	Lutz
Model	MD-1
Category	Engine
Language	English