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Centrifugal pumps Centrifugal pumps Contents Why is it important to know about centrifugal pumps Who should know about centrifugal pumps The principle of a centrifugal pump Typical parts in a centrifugal pump Sanitary centrifugal pumps Typical range of ce

Centrifugal pumps Contents Why is it important to know about centrifugal pumps Who should know about centrifugal pumps The principle of a centrifugal pump Typical parts in a centrifugal pump Sanitary centrifugal pumps Typical range of centrifugal pumps Centrifugal pump selection Installation Operation and service Troubleshooting Glossary Other handbooks in this series C Why is it important to know about centrifugal pumps A centrifugal pump is typically the most common sanitary pump type used in sanitary processes Benefots include a relatively low purchase cost wide selection simple design and easy maintenance The various aspects of centrifugal pumps are very important to consider when dealing with ow technology and ow equipment Understanding the aspects of centrifugal pumps makes it easier to select correct pumps optimize processes and minimize costs CIP Milk Fig Process with centrifugal pump principle CStandard Multi-stage Fig Centrifugal pump types principle Motor Adapter Shaft Casing High-clean Shaft Impeller seal Fig Centrifugal pump design principle Fig Centrifugal pump selection principle Examples of centrifugal pumps A centrifugal pump is used in processes with non-viscous and nonparticulate uids e g beer CIP cream milk soft drink and puri ?ed water There are typically many types of centrifugal pumps available for various types of applications The main parts of a centrifugal pump are motor shaft adapter shaft seal impeller casing and seals A centrifugal pump is typically selected from a pump curve or a pump selection program C Who should know about centrifugal pumps All people in touch with ow equipment during its life cycle should know about centrifugal pumps It is important that the target group knows the various aspects of centrifugal pumps including principle and design available types selection suitability and limitations related to given processes This ensures that processes are optimised and that errors damage and personal injuries are avoided The target group includes Process designers who should know what centrifugal pump types and con ?gurations to select so that the process is optimised related to quality and costs Sales and sales support people who should know the possibilities and limitations of centrifugal pumps related to applications processes in question Field operators who should know the possible causes of centrifugal pump malfunction and know how to solve them Beginners in the ow industry who should have a basic understanding to work e ?ciently C The Principle of a centrifugal pump The centrifugal pump transfers uid at a certain capacity from one point to another in a process The pump builds up uid pressure to overcome losses in the process Capacity and pressure are created by the rotating impeller inside the pump casing General principle ? Fluid enters the pump casing and impeller center and is forced into a circular movement by the impeller vanes and the centrifugal force The uid thus leaves the casing with increased pressure and velocity ? Typically suitable for low viscous non-particulate and non-aerated uids such as beer CIP cream juice milk soft drinks water etc Single-stage principle The uid inlet the built-up of velocity