Diaphragm pump N630 EX
Use
Translation of Original Operation and Installation Instruction, english, KNF 320945 04/21
7
This function can be made possible on a project basis following consulta-
tion with KNF Customer Service.
No overpressure may be applied to the suction side of the pump.
This function can be made possible on a project basis following consulta-
tion with KNF Customer Service.
2.3 Use in potentially explosive areas
In potentially explosive atmospheres (zones), only operate pumps and mo-
tors of the appropriate category and temperature class.
The pumps have the following EU explosion protection designation:
Designation
Description
Symbol for explosion-proof pumps
II
Equipment group (See Chapter
2/2G
Device category (See Chapter
Ex
Symbol indicates that the device complies with one or
more ignition protection types
H
Symbol for ignition protection type (See Chapter
)
II B + H2
Explosion groups (see Chapter
)
T3
Temperature class (see Chapter
Gb
Equipment protection level (See Chapter
Special operating conditions (See Chapter
Tab.3
An ignition hazard assessment in accordance with standards DIN EN ISO
80079-36 and DIN EN ISO 80079-37 was performed for the pumps. The
protective goals were reached by applying ignition protection type con-
structional safety "c".
The explosion protection designation can also be found at the following lo-
cation:
§
Type plate of the pump
Motor The pump motor must have at least the same explosion protection as the
pump.
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