English (GB)
8
6.2 Vibration dampening
If vibration dampers are used, they must be installed under the
foundation.
Fig. 10
Pump on vibration dampers
6.3 Outdoor installation
When installed outdoors, we recommend you to provide the motor
with a rain cover. We also recommend you to open one of the
drain holes in the motor flange.
6.4 Hot surfaces
Figure
shows which pump parts get as hot as the pumped
liquid.
Fig. 11
Hot surfaces on a CRT pump
6.5 Torques
The table shows the recommended torques for bolts in base and
flanges.
6.6 Flange forces and torques
If not all loads reach the maximum value stated in the tables
below, one of these value may exceed the normal limit.
Contact Grundfos for further information.
Fig. 12
Flange forces and torques
Forces
Torques
TM
04
16
91
10
08
Warning
When pumping hot liquids, care should be taken to
ensure that persons cannot accidentally come into
contact with hot surfaces.
TM
04
03
61
06
08
CRT
Base
[Nm]
Flange
[Nm]
2, 4
40
50-60
8, 16
50
60-70
Vibration dampers
Pump head
Pump sleeve
Base
TM
04
0
3
46
20
13
Y-direction:
Inlet/outlet
Z-direction:
Direction of chamber stack
X-direction:
90 ° from inlet/outlet
Flange,
DN
[mm]
CRT
Force,
Z-direction
[N]
Force,
X-direction
[N]
Force,
Y-direction
[N]
32
2, 4
760
1170
780
50
8, 16
1350
1650
1500
Flange,
DN
[mm]
CR, CRI,
CRN
Torque,
Z-direction
[Nm]
Torque,
X-direction
[Nm]
Torque,
Y-direction
[Nm]
32
2, 4
820
970
1220
50
15, 20
100
1150
1400
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