Basic Civil & Mechanical Engineering: UNIT IV: f. Pumps
Pumps - Classification According to the types of impellers
On the basis of the liquid inlet design, impellers are classified as Single Suction Type and Double Suction Type
Classification
According to THE TYPES OF IMPELLERS
On
the basis of the liquid inlet design, impellers are classified as Single
Suction Type and Double Suction Type.
1. SINGLE SUCTION IMPELLER
In a Single Suction Impeller, the liquid
enters the suction eye on one side only. Single suction impellers are used for
small units, because of ease of manufacture. The initial cost is low. Pump
maintenance is also easier. It is used for pumps handling suspended matter,
like sewage. In multi stage pumps, single suction impellers are almost
universally used.
2. DOUBLE SUCTION IMPELLER
In the Double Suction Impeller, two single
suction impellers are cast back-to-back. Therefore, the liquid enters the
impeller simultaneously from both the sides. Double suction impeller is
favoured in single stage pumps. Also, the greater suction area permits the pump
to operate with less suction head for a given capacity than with a single
suction impeller.
Basic Civil & Mechanical Engineering: UNIT IV: f. Pumps : Tag: : - Pumps - Classification According to the types of impellers
Basic Civil & Mechanical Engineering: UNIT IV: f. Pumps
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Basic Civil and Mechanical Engineering
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