Publicidad
Manuale d'uso e manutenzione
Instructions for use and maintenance
Manuel d'utilisation et d'entretien
Betriebs-und Wartungsanleitung
Manual de uso y mantenimiento
tab. 2
In order to reduce head losses the suction pipe should be of limited length (max 8 ÷ 10 m) and with a diameter larger than the pump
brackets for the suction and delivery pipes in order to avoid pump damages. Suction and delivery pipes must bu correctly
mounted and must not be subject to stress during pump operation.
- NPSH available is 1 meter approx. higher than the NPSH requested by the pump and that friction losses in suction pipe, bends, foot valve and
- All joints are perfectly airtight.
minimum twice suction pipeline surface).
- The suction pipe has not narrow bends and diameter variations.
EN
Typical installation
Wrong
Misalignment tolerances for Rovatti standard coupling
K
Pompes centrifuges pour liquides chargés
Bombas centrífugas para aguas residuales
Correct
Coupling type
27
Radial
misalignment K
0,1
0,14
[mm]
Coupling type
Axial
misalignment F
2÷3
3÷4
[mm]
Pompe centrifughe per liquami
Slurry centrifugal pumps
Kreiselpumpen für Gülle
0,3
0,4
0,6
3÷5
5÷6
6÷7
MOPL165R0
25
Publicidad
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