KNF N0150 EX, Перевод оригинальной инструкции по эксплуатации и установке

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Use Diaphragm pump N0150 EX
6 Translation of Original Operation and Installation Instruction, english, KNF 321729 11/19
No overpressure may be applied to the suction side of the pump.
This function can be made possible on a project basis upon consultation
with KNF Customer Service.
2.3 Use in potentially explosive areas
In potentially explosive areas (zones), only operate pumps of the appropri-
ate device category and temperature class.
The pumps have the following explosion protection designation:
Designation Description
Symbol for explosion-proof pumps
II
Device group (See Chapter 2.4.1 Device groups )
2/2G
Device category (See Chapter 2.4.2 Device cate-
gories for gas )
Ex Symbol indicates that the device complies with
one or more ignition protection types
H Symbol for ignition protection type (See Chapter
2.4.5 Ignition protection type )
II B + H2
Explosion groups (see Chapter 2.4.3 Explosion
groups )
T3
Temperature class (see Chapter 2.4.4 Tempera-
ture classes )
Gb
Equipment protection level (See Chapter 2.4.6
Equipment protection level for gas )
Special operating conditions (See Chapter 2.4.7
Special operating conditions )
Tab.5
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.
2.4 Explanations of the explosion protection designation
2.4.1 Device groups
Device group I Device group I applies for devices that are used in underground plants of
mines as well as their underground systems that could be endangered by
methane and/or combustible dusts.
Device group II Device group II applies for devices that are used in other areas that could
be endangered by an explosive atmosphere.