9 Connection
9.1 Dangers during connection work
5.
Screw out the fastening elements used to fasten the pump.
6.
Dismantle the pump unit on site or transport it to a suitable location
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9 Connection
9.1 Dangers during connection work
The following safety instructions must be observed strictly:
o
Have all work on the pump and pipe system only carried out by authorized qualified personnel.
o
Ensure that impurities cannot get into the pump and pipe system.
o
Ensure that mechanical connections are mounted stress-free.
o
Observe the tightening torques
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o
Have all the work on the electrical equipment only carried out by electricians.
o
Before beginning work on the pump ensure that the electrical power supply is deenergized and is
secured against being switched back on.
o
If the insulation of the electrical cables or wires is damaged, disconnect the power supply immedi-
ately.
9.2 Connecting the pump to the pipe system
Personnel qualification:
o
Transport personnel
o
Fitter
Personal protective equipment:
o
Work clothing
o
Protective gloves
o
Protective helmet
o
Safety boots
Aids:
o
Mobile crane, forklift, hoisting equipment
ATTENTION
Damage to device through impurity in the pipe system.
► During welding work attach protective covers in front of the connecting flanges.
► Ensure when welding that welding beads and abrasive dust cannot get into the pipe system and
the pump.
► Ensure that a commissioning filter is installed when the pipe system is flushed and cleaned using
the pump.
ATTENTION
Damage to device through mechanical stress.
► Ensure that the pump is mounted free of mechanical stresses in the pipe system.
► Observe the tightening torques.
Fig. 12: Connection to pipe system
1.
Turn the pump shaft or the fan impeller of the motor. This tests that the pump runs smoothly.
If the pump shaft cannot be turned by hand, remedy the fault before installing the pump
2.
Before carrying out welding work mount a protective cover on the suction connection and pres-
sure connection.
3.
Place the piping in position and support the weight of the piping.
4.
Check the linear, height and angular offset and correct if necessary.
ð
If the screws tighten easily, this is a sure sign that the installation is stress-free.
5.
Tighten the connecting screws crosswise with torque, Table of tightening torques
20
OIC 18en-GB Edition 2020-01
Operating instructions
