Process Fluid Control 23
» Solenoid valves, solenoids
(Type of protection Ex m, Ex me,
Ex md,Ex d, Ex ia, Ex nA)
» Pressure switches
(Type of protection Ex de, Ex nAC)
» Valves, cylinders,
(Type of protection Ex c)
A Declaration of Conformity must be
provided by the manufacturer for each
product. The Declaration of Conformity
explains how the manufacturer fulfils all the
relevant safety requirements. The CE mark
is subsequently attached to the product.
For electrical equipment in Category 1 and
2, an EU Type Examination Certificate
issued by a notified body is required. For non
electrical equipment an EU Type Examination
Certificate is only required for Category 1.
These Declarations of Conformity are also
obligatory for non-electrical equipment.
However, if the risk analysis of explosion
hazards show that no potential sources
of ignition exist, the item does not fall
under the ATEX directive in which case a
Declaration of Conformity and Ex marking
is not required. This may apply to products
used in purely pneumatic systems, i.e. for
valves, service units, sound absorbers.
As a manufacturer of pneumatic equipment,
Norgren offers an extensive range of
certified devices in Categories 1, 2 and 3
for use in areas with potentially explosive
atmospheres containing gases and dusts:
Which certificates are required?
Prevent explosions with Norgren ATEX approved equipment
Figure 1
EU Declaration of Conformity for valve solenoids
Figure 2
EC-Type examination certificate for a solenoid valve series
Figure 3
Certificate for the Quality Assurance System
