Wilo Stratos GIGA2.0-Serie Montageanleitung Seite 81

Fig. 14: Load case 17A, EN ISO 5199, Ap-
pendix B
Installation instructions Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D
Installation
Vertical pump on pump feet, case 17A (Fig. 14)
DN Forces F [N]
F F F
X Y Z
Pressure and suction flange
338 394 319
32
413 469 375
40
563 619 506
50
694 788 638
65
844 938 769
80
1125 1256 1013
100
1775 1481 1200
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 are the arithmetic sums of the effective values of both pump
effective effective
flanges (inlet and outlet). Σ F
max. permitted
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
Torques M [Nm]
Σ Forces F M M
X Y
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
en
M Σ Torques M
Z
175 550
275 700
325 775
350 850
400 925
475 1050
700 1275
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