1. Radial flow impeller, 2. Axial flow impeller, 3. Mixed flow impeller
Classification According to THE SHAPE OF THE
VANES OF THE IMPELLER
It
is also known as Straight Vane Impeller or Francis Vane Impeller. In this, the
vane surfaces are generated by straight lines parallel to the axis of the
rotation.
In
axial flow pumps, the liquid flows through the pump impeller axially. These are
used for large flow rates under low pressure head. These types of pumps are
used for pushing liquid through big main pipe lines such as used for liquid
supply to cities from reservoirs.
It
consists of an impeller having both the radial and axial flow components. It is
ideal for low head, large capacity applications.
Basic Civil & Mechanical Engineering: UNIT IV: f. Pumps : Tag: : - Pumps - Classification According to the shape of the vanes of the impeller
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