CAUTION
Critical speed
Increased vibrations!
Damage to mechanical seals and bearings!
▷
Install a swing check valve in longer riser pipes to prevent the pump from
excessive running in reverse.
When fitting a swing check valve, make sure that the unit can still be vented
properly.
Table 10: Permissible flange loads
Nominal diameter
of the flange
Forces [N]
Moments [Nm]
F
y
F
z
F
x
∑
F
M
y
M
z
M
x
∑
M
50
1350
1650
1500
2600
1000
1150
1400
2050
80
2050
2500
2250
3950
1150
1300
1600
2350
100
2700
3350
3000
5250
1250
1450 1750
2600
150
4050
5000
4500
7850
1750
2050
2500
3650
200
5400
6700
6000 10450 2300
2650
3250
4800
250
6750
8350
7450 13050 3150
3650
4450
6550
300
8050 10000 8950 15650 4300
4950
6050
8900
5.3.1.3 Fitting the guide wire arrangement
The pump set is guided into the sump or tank along two parallel, tightly stretched
guide wires made of stainless steel. It attaches itself automatically to the duckfoot
bend which has been fitted to the floor.
NOTE
Should site conditions/piping layout, etc. require the wire to run off the vertical, do not
exceed a maximum angle of 5° to ensure reliable fitting and guiding of the pump set.
Fitting the mounting bracket
1. Fasten mounting bracket 894 to the edge of the tank/sump opening with steel
anchor bolts 90-3.37 and tighten the anchor bolts to a tightening torque of 10
Nm.
2. Push clamping piece 571 through the holes of suspension bracket 572 and fasten
it with nuts 920.37.
3. Fasten threaded bolt 904 with the pre-assembled clamping arrangement to the
mounting bracket with nut 920.36.
Do not tighten nut 920.36 too much in order to allow sufficient play for
subsequently tensioning the guide wire.
F
x
F
z
F
y
M
y
M
z
M
x
Fig. 8: Permissible flange
loads
Fig. 9: Fitting the
mounting bracket
5 Installation at Site
24 of 78
Amarex KRT
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