
The pitched blade turbine is
essentially a modified open flat blade turbine with the
blades angled.
Available
with different number of blades, blade widths and different
blade angles, the 4-blade, 45" pitch is the most popular. It
is a good compromise between high pumping efficiency and
high shear for processes that require both centipoises.
The axial
flow turbine is significantly more efficient than the
radial flow turbine in terms of flow per horsepower.
Flow is
discharged both axially and radially depending on the angle.
For example, the 45' axial flow turbine discharges one half
of total flow axially and one half radially.
The
45' axial flow turbine is more efficient at all Reynold's
numbers than the flat blade radial turbine. However, as the
pitch angle decreases below 45", the impeller becomes
increasingly sensitive to high viscosity.
These
turbines are used for blending of miscible materials up to
50,000 centipoises, solids suspension and heat transfer.
They can be used in any flow governing application.
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