Wilo Stratos GIGA2.0-I Notice De Montage page 81

Fig. 14: Load case 17A, EN ISO 5199, Ap-
pendix B
Installation instructions Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D
All manuals and user guides at all-guides.com
Installation
Vertical pump on pump feet, case 17A (Fig. 14)
DN Forces F [N]
F
X
Pressure and suction flange
338
32
413
40
563
50
694
65
844
80
1125
100
1775
125
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
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.
Influence of material and temperature
The maximum permissible forces and torques apply for the grey cast iron base material
and for an initial temperature value of 20 °C.
For higher temperatures, the values must be corrected as follows depending on the ra-
tio of their modulus of elasticity:
E / E
t, EN-GJL 20, EN-GJL
E = Modulus of elasticity grey cast iron at the selected temperature
t, EN-GJL
E = Modulus of elasticity grey cast iron at 20 °C
20, EN-GJL
F F Σ Forces F
Y Z
394 319 619
469 375 731
619 506 975
788 638 1238
938 769 1481
1256 1013 1969
1481 1200 2325
are the arithmetic sums of the effective values of both pump
and Σ M
max. permitted max. permitted
Torques M [Nm]
M M M Σ Torques M
X Y Z
300 125 175 550
400 200 275 700
450 250 325 775
500 300 350 850
550 325 400 925
625 375 475 1050
800 500 700 1275
are the arithmetic sums of the
en
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