Permissible Forces And Torques On The Pump Flanges - Wilo Stratos GIGA2.0-I Notice De Montage Et De Mise En Service

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6.5.1 Permissible forces and torques on
the pump flanges
Fig. 13: Load case 16A, EN ISO 5199, Ap-
pendix B
Fig. 14: Load case 17A, EN ISO 5199, Ap-
pendix B
162
Installation
Pump suspended in pipe, case 16A (Fig. 13)
DN Forces F [N]
F F F
X Y Z
Pressure and suction flange
32 450 525 425
40 550 625 500
50 750 825 675
65 925 1050 850
80 1125 1250 1025
100 1500 1675 1350
125 1775 1975 1600
Values in acc. with ISO/DIN 5199 – class II (2002) – Appendix B
Table 7: Permissible forces and torques on pump flanges in vertical pipe
Vertical pump on pump feet, case 17A (Fig. 14)
DN Forces F [N]
F F F
X Y Z
Pressure and suction flange
32 338 394 319
40 413 469 375
50 563 619 506
65 694 788 638
80 844 938 769
100 1125 1256 1013
125 1775 1481 1200
Values in acc. with ISO/DIN 5199 – class II (2002) – Appendix B
Table 8: Permissible forces and torques on pump flanges in horizontal pipe
If not all working loads reach the maximum permitted values, one of these loads may
exceed the normal limit value. This is under the condition that the following additional
conditions are fulfilled:
ƒ
All force and torque components are limited to 1.4 times the maximum permitted
value.
ƒ
The forces and torques acting on each flange meet the requirements of the com-
pensation equation.
Fig. 15: Compensation equation
Σ F and Σ M are the arithmetic sums of the effective values of both pump
effective effective
flanges (inlet and outlet). Σ F
maximum permitted values of both pump flanges (inlet and outlet). The algebraic signs
of Σ F and Σ M are not taken into consideration in the compensation equation.
Torques M [Nm]
Σ Forces F M M
X
825 550 375
975 650 450
1300 700 500
1650 750 550
1975 800 575
2625 875 625
3100 1050 750
Torques M [Nm]
Σ Forces F M M
X
619 300 125
731 400 200
975 450 250
1238 500 300
1481 550 325
1969 625 375
2325 800 500
and Σ M are the arithmetic sums of the
max. permitted max. permitted
M Σ Torques M
Y Z
425 800
525 950
575 1025
600 1100
650 1175
725 1300
950 1525
M Σ Torques M
Y Z
175 550
275 700
325 775
350 850
400 925
475 1050
700 1275
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