Wilo Stratos GIGA2.0-Serie Montageanleitung Seite 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
Installation
r ≈ 2,5 * (d-2s)
5 x DN
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.
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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.
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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 F
X Y Z
Pressure and suction flange
450 525 425
32
550 625 500
40
750 825 675
50
925 1050 850
65
1125 1250 1025
80
1500 1675 1350
100
1775 1975 1600
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
Torques M [Nm]
Σ Forces F M M
X Y
825 550 375
975 650 450
1300 700 500
1650 750 550
1975 800 575
2625 875 625
3100 1050 750
M Σ Torques M
Z
425 800
525 950
575 1025
600 1100
650 1175
725 1300
950 1525
WILO SE 2021-02