Components of Centrifugal Pump

Aug. 13, 2010 - PRLog -- A centrifugal pump usually have two parts of general parts: A stationary components comprised of casing, casing coer, and bearings. And a rotating components comprised of impeller and shaft.
Stationary Components
There are two types of casing: volute and circular. Volute casing build a higher head, circular casings are used for low head and high capacity.
Suction and Discharge Nozzle are part of the casing itself.
Gland
The gland i svery important part of seal chamber or the stuffing box. It gives the packings or the mechanical seal the desired fit on the shaft sleeve. It can be easily adusted in axial direction.
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Throroat Bushing
The bottom or inside end of the chamber is provided with a stationary device called throat bushing that forms a restrictive close clearance around the sleeve(or shaft) at the outboard end of a mechanical seal gland.
Internal Circulating Device
The Mechanical Seal


Rotating Components
Impeller
The impeller is the main rotating part that provides the centrifugal acceleration to the fluid. They are often classified in many ways.
Shaft
The basic purpose of a centrifugal pump shaft is to transmit the torques encountered when starting and during operation while supporting the impeller and other rotating parts. It must do this job with a deflection less than the minimum clearance between the rotating and the stationary parts.

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