Series RMI-B
close-coupled design
Page
5
9430-055-en
Revision 00
TM 9886
Edition 03/2018
2 Safety
This operating manual contains fundamental
information which is to be observed during installation,
operation and maintenance.
It must be read before installation and
commissioning!
This operating manual must always be available at the
place of use of the machine/plant.
Observe the safety notes in all the chapters.
Installation, operation and maintenance are to be per-
formed by qualified staff.
The area of responsibility, authority and supervision of
the staff must be exactly regulated by the customer.
If the staff does not have the necessary expertise,
they are to be trained and instructed.
If necessary, this can be provided by the manufactur-
er/supplier on behalf of the machine operator.
General hazard symbol!
People may be
put at risk.
Safety symbol!
The pump and its function
may be put at risk if this safety symbol is not
observed.
EU marking!
Explosion-protected equip-
ment must be identified for work in poten-
tially explosive areas.
Warning of a magnetic field!
Warning of electric power!
This warning sign must be used if people
with a pacemaker are at risk, e.g. from a
strong magnetic field.
It is imperative to observe signs attached directly to
the pump / unit, e.g.:
♦
Direction of rotation arrow
♦
Warning against dry-running
♦
Type plate
and they are to be kept legible.
Non-observance of the notes on safety may result
in the loss of any and all claims for damages.
Non-observance may involve the following hazards:
♦
Failure of important functions of the machine/plant.
♦
Failure of electronic equipment and measuring
instruments due to magnetic fields.
♦
Risk to people and their personal property from
magnetic fields.
♦
Risk to people from electric, mechanical and chem-
ical effects.
♦
Risks to the environment through leaks of hazard-
ous substances.
If the unit is used in potentially explosive
areas, special attention is to be paid to
the sections identified with “Ex” in this
operating manual.
2.1 Intended use
Richter pumps of the series RMI-B are plastic-lined
magnetic drive centrifugal pumps for the leak-free
conveyance of aggressive, toxic, pure and inflamma-
ble liquids. The pump is equipped with a permanent
magnetic synchronous drive.
♦
Only operate the pump / the unit in a technically
perfect condition.
♦
Only use the pump with the media described in the
data sheet.
♦
For vertical installation of the pump, please consult
the manufacturer.
The observance of the specified physical limits is im-
portant for perfect functioning and safe operation,
especially with regard to explosion protection to pre-
vent potential sources of ignition (see
Section 2.6
):
♦
Avoid dry running
♦
Ensure that the pump is commissioned only with
the pumped medium and is not operated without.
♦
For safe pump operation, we recommend a flow
rate between 0.3 and 1.1 Q
opt
. The maximum op-
erating temperature must never be exceeded. See
Section 2.6.7
. In case of doubt, you must consult
the manufacturer.
♦
The manufacturer must be consulted in the event
of entrainment of gas >2% as well as solids in or-
der to avoid a lack of lubrication and dry-running.
♦
The plant NPSH value (NPSHA) should be 0.5 m
higher than the NPSH value of the pump
(NPSHR). See also
Section 5.4.1
.
Inadmissible modes of operation, even for
brief periods, may result in serious damage
to the unit.
In connection with explosion protection, potential
sources of ignition (overheating, electrostatic and in-
duced charges, mechanical and electric sparks) may
result from these inadmissible modes of operation;
their occurrence can only be prevented by adhering to
the intended use.
