|
|
Curve show
approximately the characteristics when pumping water (SG of
1.0)
Pump speed = approximate 1450
RPM
|
|
Total Head
[m]
|
|
|
|
Flow [l/s]
|
|
|
Curve show
approximately the characteristics when pumping water (SG of
1.0)
Pump speed = approximate 2950
RPM
|
|
|
|
|
|
|
ADVANTAGES OF THE
TWIN VOLUTE DISCHARGE DESIGN
|
An impeller,
rotating in a single volute shaped casing is subjected to an
unbalanced side thrust. If the impeller overhangs the shaft
bearing, the side thrust may cause vibration and rapid wear of
bearings.
Many vertical slurry pumps are of a single-volute design. Some are
provided with a “splitter”, which results in a double-
volute design. This is effective under certain flow
conditions but the thrust balancing is not as complete as with the
Hippo Twin-Volute. This figure show how the thrust is balanced by
the Twin-Volute with 180 degrees opposed discharge
outlets.
|
The diagram
illustrates the Twin Volute Discharge concept
|
