Installation and connection
5.4
Connecting the pipes
NOTE
Material damage due to excessive forces and torques on
the pump.
Ensure pipe connection without stress.
5.4.1
Keeping the piping clean
NOTE
Material damage due to impurities in the pump!
Make sure no impurities can enter the pump.
1. Clean all piping parts and fittings prior to assembly.
2. Flush all pipes carefully with neutral medium.
3. Ensure no flange seals protrude inwards.
4. Remove any blind flanges, plugs, protective foils and/or
protective paint from the flanges.
5.4.2
Installing suction pipe
1. Remove the transport and sealing covers from the pump.
2. Fit suction pipe stress-free and sealed.
3. Ensure no seals protrude inwards.
4. For the suction process: Install foot valve in the suction
pipe in order to prevent the pump and suction pipe from
dry running when pump is not running.
5.4.3
Installing the pressure pipe
1. Remove the transport and sealing covers from the pump.
2. Fit
the
pressure
line
stress-free
and
sealed
9.2.3 Flange tightening torques, Page 32).
3. Ensure no seals protrude inwards.
5.4.4
Inspection for stress-free pipe connections
Piping installed and cooled down
1. Disconnect the pipe connecting flanges from the pump.
2. Check whether the pipes can be moved freely in all direc-
tions within the expected range of expansion:
–
Nominal width < 150 mm: by hand
–
Nominal width > 150 mm: with a small lever
3. Make sure the flange surfaces are parallel.
4. Reconnect the pipe connecting flanges to the pump.
5. If present, check support foot for stress.
5.5
Electrical connection
DANGER
Risk of electrocution!
All electrical work must be carried out only by qualified elec-
tricians.
Before all work on the electrical system, disconnect the
motor from the mains and secure against being switched
back on again.
5.5.1
Connecting the motor
Follow the instructions of the motor manufacturer.
1. Connect the motor according to the connection diagram.
2. Make sure no danger arises due to electric power.
3. Install an EMERGENCY STOP switch.
5.5.2
Check direction of rotation
Only possible when starting up
5.6
Performing the hydrostatic test
Only necessary if the entire system needs to be tested
under pressure.
NOTE
Material damage due to bursting of pump casing.
Testing pressure must not exceed the permissible pump
pressure (
→
documents for the particular order).
Make sure the testing pressure does not exceed the per-
missible pump pressure.
–
If necessary, do not perform pressure test on the pump.
300 092
BA-2018.08.21 EN
SHM
17
