Operating instructions B-Series
Version 2.4, En Page 51 of 81 21-10-2005
Integrated
explosion safety:
For the case of an internal explosion, which is excluded to the
extent possible, it is the responsibility of the user to decide if
technical measures (such as quick-acting valves) must be
taken to prevent and/or limit the explosion.
8.4.4 Characteristics
Check the type of pump (name plate) and the characteristics of the pump unit, such as: number of
revolutions, working pressure, consumed power, operating temperature, direction of rotation, NPSH, etc.
Extra point(s) for attention with ATEX pumps.
K1.
Ensure a correct pump choice with respect to the liquid type with its technical
properties and quantity.
• With flammable, volatile liquids: ensure the correct choice of material for the
rotor and wear plate.
•
Make sure that the pump housing, etc. is not adversely affected by the medium to
be pumped.
8.4.5 Electrical installation
Check whether the electrical installation is provided in accordance with the local prevailing instructions.
Also check if the necessary measures have been taken to absolutely eliminate danger to the user.
8.4.6 Drive gear
Check whether the motor connection is in conformity with the mains voltage (check terminal cabinet).
Check the setting of the motor protection.
Extra point(s) for attention with ATEX pumps.
B6.
B7.
Protect e-motor against overloading.
•
In the case of overloading the motor may not become too hot. This is the case with
an EX-motor because the motor switches of in time.
Protection of supplied power.
Dangers relating to
the software:
It is the responsibility of the employer to ensure that the
safety measures (such as protection with overloading) and the
resulting action (such as the stoppage of the motor are
appropriately included in the safety circuit.
8.4.7 Direction of rotation
Check whether the direction of rotation of the motor corresponds with the direction of rotation of the
pump.
Check the direction of rotation of the pump unit. The direction of rotation of the motor can be reversed if
necessary.
Extra point(s) for attention with ATEX pumps.
B1.
G3
Ensure direction of rotation protection (electrical/mechanical).
Ensure the correct direction of rotation
Dangers relating to
the software:
It is the responsibility of the employer to ensure that the
safety measures (such as the direction of rotation protection)
and the resulting action (such as the stoppage of the pump)
are appropriately included in the safety circuit.
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