Secochem-Ex
10
4.4
Permissible forces and moments at the pump nozzles
The forces and moments were determined on the basis of API 610
(6th edition), table 2, doubled values.
The resulting permissible forces have been determined according to
F
res D
±
F
x
2
+ F
z
2
and
F
res S
±
F
y
2
+ F
z
2
The data on forces and moments apply to static pipelines only. If the
limits are exceeded, they must be checked and verified. If a
computerized strength analysis is required, please contact KSB!
The values are only applicable if the pump is bolted to a rigid and level
foundation.
For temperatures exceeding 120
C, the values indicated must be
reduced in accordance with the above diagram.
Suction nozzle
Discharge nozzle
Fig. 4
Pump sizes
Forces
Moments
Pump sizes
Suction nozzle in N
Discharge nozzle in N
Suction nozzle in Nm
Discharge nozzle in
Nm
F
x
F
y
F
z
F
res
F
x
F
yTens
+
F
yCompr
-
F
z
F
res
M
x
M
y
M
z
M
x
M
y
M
z
25-160
-200
1050
700
850
1100
500
350
650
450
700
550
450
300
400
300
200
32-160
-200
-250
1350
900
1100
1400
700
450
850
550
900
700
550
350
450
350
250
40-160
-200
-250
-315
1750
1150
1400
1800
850
550
1100
700
1100
1150
850
600
550
450
300
50-160
-200
-250
-315
2150
1400
1700
2200
1100
700
1350
900
1400
1450
1100
750
700
550
350
65-160
-200
-250
-315
2700
1750
2150
2750
1400
900
1750
1150
1800
2000
1500
1000
1150
850
600
80-160
-200
-250
-315
3700
2400
2950
3800
1700
1100
2150
1400
2200
2750
2100
1400
1450
1100
750
100-200
-250
-315
3700
2400
2950
3800
2150
1350
2700
1750
2800
2750
2100
1400
2000
1500
1000