Appendix
9.2.9 Flange loads according to ISO 5199
Empirical formulas for forces and torques
Fig. 30 Empirical formulas for forces and torques
z
y
x
y
x
z
S
D
Fig. 31 Flange loads at the pump
Formulas for conditions to be checked
For pumps
– With support foot
– Without support foot and with coupling for high per-
missible shaft offset
For pumps without support foot
To calculate the maximum permissible flange load: multiply
the table value with the correction factor M, depending on
the material and temperature (→ Fig. 32 Correction factor
M and operating temperature, Page 47).
Values for base plate
Not filled with
concrete
Filled with concrete
Pump
size
F
vmax
(z) [N]
F
hmax
(x, y)
[N]
M
tmax
[Nm]
F
vmax
(z) [N]
F
hmax
(x, y)
[N]
M
tmax
[Nm]
20-160 1300 1000 200 3000 1400 270
25-160 2000 1400 400 4500 3100 850
25-200 1900 1400 350 4400 2900 800
32-160 2300 1600 500 4600 3200 1000
32-200 2100 1500 450 4500 3100 900
32-250 2500 1700 550 4800 3450 1100
40-160 2700 1800 650 5000 3600 1250
40-200 2400 1700 550 4800 3400 1100
40-250 2800 1900 700 5200 3800 1350
40-315 2900 2000 700 5300 3850 1400
50-160 3200 2100 800 5500 4100 1650
50-200 2800 1900 700 5200 3800 1350
50-250 3200 2200 850 5600 4250 1650
50-315 3300 2200 850 5700 4300 1700
65-160 4200 2800 1200 6700 5200 2400
65-200 4500 2900 1300 7000 5500 2600
65-250 4000 2600 1100 6400 5000 2250
65-315 4700 3100 1400 7300 5800 2850
65-400 3200 2200 850 5600 4100 1600
80-160 5300 3400 1650 8000 6400 3350
80-200 5600 3600 1700 8300 6700 3600
80-250 4900 3200 1400 7500 5900 3000
46 NT series BA-2021.04 en-US 161-295/E