D1WWTD02E
7
Service Manual
DPC130X
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Valve description
ATEX Directive 2014/34/UE
Please find below the ATEX categories on Walvoil DPC130X valve
II 2G Ex h IIC T4 Gb
II 2D Ex h IIIC T130°C Db
I M2 Ex h I Mb
Mining category can be added in some specific DPC130X configurations.
Group I
Group II
Includes the equipment destined to be used in underground jobs in the
mines and their surface plants, exposed to the risk of release of fire
-
damp and/or combustible dust. The subdivision into categories depends
on the eventual power supply interruption in case of explosive atmos-
phere due to a mixture of air and gas, vapours mists (D) or a mixture
of air and dust (G).
Includes the equipment to be used in different environments (from the
mines) with possible explosive atmosphere. Their subdivision into cate-
gories depends on two fators: the place, where the product will be used
and the possible potentially explosive atmosphere, due to the mixture
of air and gas, vapours, mists (D) and the mixture of air and dust (G).
It can occur in a constant or occasional manner and for long or brief
period of time.l
Category M1: Very high protection level
Category 1: Very high protection level
These products must keep on working, for safety reasons, in the pre-
sence of an explosive atmosphere and specific performances or protec
-
tion configurations for breakdown in case of explosion.
These products have to work, in compliance with operative parameters
established by the Manufacturer, in environments with a high probabi-
lity of frequent or long lasting explosive atmospheres. They must pre-
sent specific performances or protection configurations for breakdown
in case of explosion.
Category M2: High protection level
Category 2: High protection level
The power supply to these products must be interrupted in case of
an explosive atmosphere. Protection means must be incorporated to
guarantee the protection level during normal functioning and also in
oppressive working conditions or resulting from great stress.
These products have to work, in compliance with operative parameters
established by the Manufacturer, in environments with a high probabili-
ty of explosive atmospheres. Protection against explosions in this case
must guarantee the required safety level even in presence of equip-
ment functioning defects or in dangerous operative conditions, which
frequently must be taken into consideration.
Category 3: Normal protection level
These products have to work, in compliance with operative parameters
established by the Manufacturer, in environments with a slight proba-
bility of explosive atmosphere, which may occur, however only rarely
or for a brief period of time. This type of product, belonging to the
category concerned must guarantee the safety level required in normal
functioning conditions.
The EPLs were chosen in accordance with possible ignition sources and normal operation and expected malfunctions analysis
(Explosion Risk Assessment).
