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Why Do I Need A Slurry Pump?

Oct. 11, 2021

When it comes to mud transport, familiarity with the pump and its components is standard for the course. However, it is also important to understand what each element of slurry transport entails. This understanding starts with a few basic questions: "What is the difference between a slurry pump and a water pump?" "What is special about slurry pumps?" and "What slurry pumping devices are available?"


Slurry pumps vs water pumps

Slurry is distinguished from other fluid types by the presence of solids - gravel, copper or sand - in the liquid. Although in many cases this fluid is water, slurries may contain solvents, such as acids, alcohols or petroleum. These non-aqueous components, whether solids or solvents, require a slurry pump.


In contrast to the narrow and often inexpensive components of pumps, the large replaceable slurry pump components are made of robust and often specialised materials. These components allow the pump to move almost any type of solids in the slurry efficiently and safely. Pumps, on the other hand, lack the hydraulic capacity to move solids and cannot withstand the particle wear and chemical corrosion that slurries can cause. If you want to get more information about best slurry pump wholesale, welcome to contact us today or request a quote. 


What is so special about slurry pumps?

Slurry pumps can withstand a great deal of wear and tear due to the following characteristics: large impeller diameters, shafts, bearings and internal passages as well as heavy duty construction. On an industrial level, the features of slurry pumps incur higher upfront and operating costs compared to water pumps. However, only slurry pumps are effective for the hydraulic transfer of solid materials and the long-term benefits outweigh the initial costs.

 Slurry Pump

 Slurry Pump

The key to the success of slurry pumps is the generation of centrifugal forces that push material outwards from the centre of the pump. This is in contrast to centripetal force, which pushes the material towards the centre. Slurry pumps must operate according to the centrifugal principle, as the forces that give slurry velocity accelerate the conveying process. On the other hand, centripetal pumps are impractical because the solids in the slurry accumulate rather than flow freely.


Slurry pump installations

Knowing these basics, it is also important for anyone wishing to install a slurry pump to understand the specific environment required for each type of pump. Three types of slurry installations exist.


Wet - In this installation, the slurry pump and drive are fully submerged in water. This is necessary for certain slurry pump applications, such as underwater operation.

Dry - In this installation, the pump drive and bearings are kept away from the slurry. The wet end - which includes the housing, impeller, hub or suction bushing and the sleeve or stuffing box - is self-contained and free of any liquid around it. Mud pump technicians install most horizontal pumps in this manner.

Semi-dry - This special arrangement is used for horizontal pumps in dredging applications. The operator floods the wet end and bearings, but keeps the drive dry. In this case, the bearings require special seals.

Although this guide gives an overview of slurry pumps and their installation, there is much more to learn. For those who want a better understanding of slurry pumps and their applications or need help deciding which pump and installation type is best for their application.

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