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• Use a concrete of compressive strength class
C12/15 which meets the requirements of expo-
sure class XC1 to EN 206-1.
• The mounting surface must have set and must
be completely horizontal and even.
• Observe the weights indicated.
Install the pump set
For examples of horizontal installations, see
15
on page 395
Check that the foundation has been prepared in ac-
cordance with the dimensions given in the outline
drawing/general arrangement drawing.
For information about the pump base and anchor
holes, see
Figure 16
on page 395.
1. Position the pump set on the foundation and
level it with the help of a spirit level that is
placed on the discharge port.
The permissible deviation is 0.2 mm/m.
2. Remove the plugs covering the ports.
3. Align the pump and piping flanges on both sides
of the pump. Check the alignment of the bolts.
4. Fasten the piping with bolts to the pump. Do not
force the piping into place.
5. Use shims for height compensation, if necessa-
ry.
Always fit shims, if any, immediately to the left
and right of the foundation bolts between the
baseplate/foundation. For a bolt-to-bolt distance
(L) > 800 mm, fit extra shims halfway between
the bolt holes.
6. Make sure that all shims lie perfectly flush.
7. Insert the foundation bolts into the holes provid-
ed.
8. Use concrete to set the foundation bolts into the
foundation.
9. Wait until the concrete has set firmly, and then
level the baseplate.
10. Tighten the foundation bolts evenly and firmly.
Note:
• For baseplates, it is recommended to grout the
baseplate with low-shrinkage concrete.
• If the transmission of vibrations can be disturb-
ing, provide vibration-damping supports between
the pump and the foundation.
Mount the pump to a base frame
Be sure to check that the following are adhered to:
• Solid base frame which does not twist or vibrate
during operation (resonance).
• Mounting surfaces of the pump feet and the mo-
tor on the base frame must be flat (machining is
recommended).
• Safe fastening of pump and motor must be guar-
anteed.
• Adequate space between pump and motor shaft
must be left depending on the used coupling.
• Between pump and base frame must be an ade-
quate shimming, so that in case of replacement
the same height between bottom and centerline
can be adjusted (recommended vertical adjust-
ment 4-6 mm).
4.3.2 Piping checklist
Check that the following are adhered to:
• The suction lift line has been laid with a rising
slope, at positive suction head line with a down-
ward slope towards the pump.
• The nominal diameters of the pipelines are at
least equal to the nominal diameters of the pump
ports.
Figure
• The pipelines have been anchored in close prox-
imity to the pump and connected without trans-
mitting any stresses or strains.
• Free the piping from any impurities.
• If necessary, install a filter.
4.3.3 Coupling alignment
After mounting to the foundation and the connection
of the piping, the coupling must be adjusted again,
even if the unit was delivered completely mounted
on the frame.
Remove the coupling guard
'Wire mesh' type
For information see
1. Unscrew the fixing devices (2).
2. Open the lift guard (1).
– Do not loosen screws, washers and nuts.
'Shell' type
For information see
1. Unscrew the fixing devices — side (5).
2. Unscrew the fixing devices — up (3).
3. Remove the coupling guard — upper half (1).
4. Unscrew the fixing devices — low (4).
5. Remove the coupling guard — lower half (2).
6. Open and lift the supporting/adjusting ring (6).
Alignment
For information see
1. Loosen screws of the support and pump foot.
2. Place the ruler (1) axially on both coupling
halves.
3. Leave the ruler (1) in this position and turn the
coupling by hand.
– The coupling is aligned correctly if the dis-
tances 'a' and 'b' to the respective shafts are
the same at all points around the circumfer-
ence.
– The radial and axial deviation between the
two coupling halves must not exceed the
values set by the manufacturer, during
standstill as well as at operating temperature
and under inlet pressure.
4. Check the distance between the two coupling
halves around the circumference with a gauge
(2).
– The coupling is aligned correctly if the dis-
tance between the two coupling halves is the
same at all points around the circumference.
– The radial and axial deviation between the
two coupling halves must not exceed the
values set by the manufacturer, during
en - Original instructions
CAUTION:
Welding beads, scale and other impuri-
ties in the piping damage the pump.
Figure 17
on page 398.
Figure 18
on page 400.
Figure 19
on page 403.
21
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