INSTALLATION & MAINTENACE MANUAL
RCOe2100/03.06
14
2.2 – Conformity to standards
Parker Calzoni motors can be provided in conformity to the essential safety requirements according to the
Directive ATEX 94/9/CE as per the specifications here below:
The motors, if destined to operate in potential explosive hazardous atmosphere, are designed and
realised in conformity to the Safety Essential Requirements (RES) of Annex II of Directive “ATEX”
94/9/CE. The Directive provides the following classification:
Group
II
, category
2
, operation in gaseous and dusty environment zone 1 and 21;
Group
II
, category
3
, operation in gaseous and dusty environment zone 2 e 22;
Group
I
, category
M2
, operation inside mines;
Maximum surface temperature: class of temperature
T4
SAFETY SPECIFICATIONS FOR MOTORS IN CONFORMITY TO DIRECTIVE 94/9/CE
the motor must be connected to ground by means of the dedicated threaded hole identified by
means of the symbol (
) – pls. refer to the picture here below;
only mineral oil with in flammability degree higher than 185°C can be used;
motor seals must be in VITON®;
motor must be always flushed in whatever operating condition (pls. refer to the section
“Flushing”);
the motor must be equipped with a system to detect the oil level inside the motor case: motor
case must be always full of oil (pls. refer to the section “Flushing”);
no creeping metal elements external to the motor are allowed;
plastic parts that might accumulate electrostatic charges are not allowed; their presence is
accepted if shielded.
for installations in zones 21 and 22 the user has to adopt a scheduled periodic cleaning plan of
the machinery surface and recesses so that to prevent more than 5 mm thickness dusts
deposits.
Before servicing motors that operate in potential explosive hazardous atmosphere, the assigned
personnel must deactivate the inlet feeding putting the motor in “out of service” condition; attention
has to be paid to any situation that might lead to the undesired re start up of the motor or to the
undesired and not predicted movement of motor’s parts.
All additional environmental safety regulations must be undertaken (i.e. degassing process & residual
dust cleaning process of the atmosphere)
It is forbidden to use a motor not designed and realised in conformity to the dedicated standards in
potential explosive hazardous zones or where the usage of anti-deflagration components is required.
