Wilo Yonos GIGA2.0-D, Installation And Operating Instructions Manual

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en Installation
132 WILO SE 2022-05
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Fig. 15: Load case 17A, EN ISO 5199, Ap-
pendix B
Vertical pump on pump feet, case 17A (Fig. 15)
DN Forces F [N] Torques M [Nm]
F
X
F
Y
F
Z
Σ Forces F M
X
M
Y
M
Z
Σ Torques M
Pressure and suction flange
32 338 394 319 619 300 125 175 550
40 413 469 375 731 400 200 275 700
50 563 619 506 975 450 250 325 775
65 694 788 638 1238 500 300 350 850
80 844 938 769 1481 550 325 400 925
100 1125 1256 1013 1969 625 375 475 1050
125 1775 1481 1200 2325 800 500 700 1275
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. 16: Compensation equation
Σ F
effective
and Σ M
effective
are the arithmetic sums of the effective values of both pump
flanges (inlet and outlet). Σ F
max. permitted
and Σ M
max. permitted
are the arithmetic sums of the
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
t, EN-GJL
/ E
20, EN-GJL
E
t, EN-GJL
= Modulus of elasticity grey cast iron at the selected temperature
E
20, EN-GJL
= Modulus of elasticity grey cast iron at 20 °C