Figure 15: Unbalanced loading of double-suction impeller
Examples
2
3
4
1
1.
Level centerline of pipe
2.
Check valve
3.
Gate valve
4.
Increaser
Figure 16: Suction pipe installed with a gradual rise to the pump – correct
1
1.
Air pocket
Figure 17: Suction pipe installed with a gradual rise to the pump – incorrect
1
1.
Air pocket
Figure 18: Suction pipe installed with a reducer – incorrect
1
1.
Air pocket
Figure 19: Incorrect
2
1
1.
No air pockets
2.
Gradual rise
Figure 20: Correct
4.5 Piping checklists
Model 3409 Installation, Operation, and Maintenance Manual
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Содержание Goulds Pumps 3409
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