Wilo Stratos GIGA2.0-I Notice De Montage page 80

en
7.5.1 Permissible forces and torques on
the pump flanges
Fig. 13: Load case 16A, EN ISO 5199, Ap-
pendix B
80
All manuals and user guides at all-guides.com
Installation
r ≈ 2,5 * (d-2s)
Fig. 12: Settling section upstream and downstream of the pump
NOTICE
Avoid flow cavitation!
• A settling section must be provided upstream and downstream of the pump in the
form of a straight pipe. The length of the settling section must be at least 5 times
the nominal diameter of the pump flange.
ƒ
The pipes and pump must be free of mechanical stress when installed.
ƒ
The pipes must be fixed in such a way that the pump does not have to support the
weight of the pipes.
ƒ
Clean and flush the unit before connecting the pipes.
ƒ
The direction of flow must correspond with the direction arrow on the pump flange.
ƒ
The air vent valve at the lantern (Fig. I, Item 28) must always be pointing upwards if
the motor shaft is horizontal (Fig. 8). If the motor shaft is vertical, any orientation is
permitted. See also chapter "Permissible installation positions".
Pump suspended in pipe, case 16A (Fig. 13)
DN Forces F [N]
F F
X Y
Pressure and suction flange
450 525
32
550 625
40
750 825
50
925 1050
65
1125 1250
80
1500 1675
100
1775 1975
125
Values in acc. with ISO/DIN 5199 – class II (2002) – Appendix B
Table 7: Permissible forces and torques on pump flanges in vertical pipe
5 x DN
Torques M [Nm]
F Σ Forces F M
Z X
425 825 550
500 975 650
675 1300 700
850 1650 750
1025 1975 800
1350 2625 875
1600 3100 1050
M M Σ Torques M
Y Z
375 425 800
450 525 950
500 575 1025
550 600 1100
575 650 1175
625 725 1300
750 950 1525
WILO SE 2021-02