1 SAFETY PRECAUTIONS
PAGE
1.3R
1. Assembly and repair in potentially explosive areas
When performing assembly and repair work, it has to be seen to that no danger of
ignition arises especially during heating up the pump parts. This means e.g. heating up
by explosion-proof heating devices or exclusively in non-explosive areas. The
temperature of the heated part and the ignition temperature of the materials which
cause the danger of explosion have to be considered.
2. Dry-running protection
Under no circumstances is the pump to run dry. The pump is to be equipped with an
appropriate dry-running protection device.
The device for dry-running protection should be self-regulating.
This means that this device can give alarm signals and/or switch off the pump also in
case of failures in its own control system.
3. Overpressure protection
The pump must not be loaded over the maximum allowable pressure. The pump is to
be equipped with an appropriate overpressure protection device. The pump must not
convey against a closed slide valve.
The overpressure protection device should be self-regulating.
4. Drives
The drives must be adjusted to the performance of each pump. In the case of a
blocking of the pump, the drives must be turned off automatically by means of a
motor protection unit.
5. Potential equalization
All conductive parts of the pump are to be integrated in the potential equalization of
the pumping set unless the conductive connection to the ground potential is
guaranteed by the drive or connecting shafts or otherwise.
6. Stator
The stator is to be regularly checked for wear.
When the allowable wear limit is reached, the stator is to be replaced. Before
exchanging the conveying product, the pump operator has to consult the
manufacturer concerning the durability of the stator unless the stator has already
been confirmed for the intended application.
Inspection and maintenance interval of the stator:
- in the case of an operating time of > 16 h/day, at least twice a year
- in the case of an operating time of < 16 h/day, at least once a year.
text no.
R 01013-1/2
issued: 03.05.2016 Revision: 3
copy to:
IPP - EN - EN_01013_20160503/2 - D8411276 - 4300003998 - 000100 - NPS - 00229929 N 2018-02-21 19:03:25
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