Setup and connection
5.5 Connecting the pipes
5.5.1 Keeping the piping clean
NOTE
Material damage due to impurities in the pump!
Make sure no impurities or foreign particles enter the pump.
1. Clean all piping parts and fittings prior to assembly.
2. Ensure no fla ng e seals protrude inwards.
3. Remove any blank flanges, plugs, protective foils and/or
protective paint from the flanges.
5.5.2 Installing auxiliary piping
Follow the manufacturers’ s pecifications for any available
auxiliary systems.
Shaft seals used (→ Shaft seals, Page 44).
1. Connect the auxiliary pipes to th e auxilia ry connections so
that they are stress-free and do not leak (→ setup d rawing).
2. For shaft seals in versions G0Q, G1Q, G0D and G1D:
– Lay auxiliary pipes with a large flow cross-section.
– Connect the se aling media outlet to the highest co n-
nection of the sealing housing.
3. To avoid air pockets: run the pipes with a continuous slope
up to the pump. If necessary, install vent connections.
4. For cooling and heating systems for double-jacket casings:
Connect the cooling and heating medium outlet to the high-
est connection on the casing.
5.5.3 Installing the suction pipe
1. Remove the transport and sealing covers from the pump.
2. To avoid air pockets: run the pipes with a continuous slope
up to the pump.
3. Ensure no seals protrude inwards.
4. For suction operation: install a foot valve in the
suction pipe
to p r event t he pump and suction pip e from runnin
gempty
during downtimes.
5.5.4 Installing the pressure line
1. Remove the transport and sealing c
overs from the pump.
2. Install the pressure line .
3. Ensure no seals protrude inwards.
5.5.5 Inspection for stress-free pipe connections
Piping installed and cooled down
NOTE
Material damage due to distorted pump casing
Ensure that all pipes are stress relieved when con nected
to the p ump.
1. Disconnect the pip e 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 diameter < 150 mm : by hand
– Nominal diameter > 150 mm : with a small lever
3. Make sure the flange surfaces are parallel.
4. Reconnect the pipe connecting fl anges to the pump.
5.5.6 Inspecting the support foot on the discharge
casing (504) for distortion
1. Loosen the screwed connection of the support foot on the
discharge casing to the base plate.
2. If the support foot mov es or is under pressure, compens ate
for distortion by inserting more shims under the base plate.
3. Screw support foot back onto base plate.
5.6 Electrical connection
Follow the instructions of the motor m anufacturer.
DANGER
Risk of death due to electric shock!
Have all electrical work carried out by qualified electricians
only.
DANGER
Risk of death due to rotating parts!
Isolate the motor from its supply voltage and keep it locked
when carrying out any fitting or m aintenance work.
1. Connect the motor according to the conne ction diagram.
2. Make sure no danger arises due to electric p owe r.
3. Install an EMERGENCY STOP switch.
260371 – 176-982/0 BA-2020.05 en-US AE 19
To Next Page
Loading...
