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You may mean a "close-coupled pump" in which case, that is a pump which is mounted directly on the same shaft as the driving motor: i.e. there is no baseplate or coupling to join the two shafts, drive and driven, and the pump hangs off the notor frame. A centrifugal pump is a type of pump where the liquid is forced to travel by an impeller which is inside a close-fitting chamber, or "volute" - it is probably the most common industrial and domestic pump type.

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What different between centrifugal pumps and multi pumps?

A centrifugal pump works by using centrifugal force. A multi pump is short for a multistage centrifugal pump with two or more impellers.


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Why the centrifugal pump is called high discharge pump?

A centrifugal pump is generally considered a high-discharge pump because of the way its rotating impeller transfers energy to the fluid. As the impeller spins, it accelerates the liquid outward from the centre, increasing its velocity. The casing or volute then converts much of this velocity into pressure, allowing the fluid to move continuously through the discharge pipeline. This operating principle makes centrifugal pumps particularly suitable for applications that require relatively high flow rates. In slurry-handling applications, the same principle is adapted to deal with mixtures containing solid particles. A centrifugal slurry pump typically uses a robust impeller, wider flow passages and wear-resistant components so that abrasive or solids-laden slurry can be transported without excessive internal wear. The actual discharge, however, depends on factors such as impeller size, rotational speed, pump design, slurry concentration, particle characteristics and system resistance. So, it would be inaccurate to assume that every centrifugal pump automatically provides high discharge under every operating condition. For instance, Cosmos Pumps offers centrifugal slurry pumping solutions designed for demanding applications involving abrasive solids and slurry. Its approach highlights an important point when selecting a pump: discharge capacity needs to be considered alongside head, slurry characteristics and wear requirements. In simple terms, centrifugal pumps can deliver high flow because their impeller continuously adds energy to the fluid, while the casing converts that energy into usable pressure. For slurry applications, choosing the right pump design is particularly important because achieving the required discharge must be balanced with efficient solids handling and resistance to abrasion.


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Because the centrifugal pump cannot pump air due to its loose tolerances, the positive displacement pump is needed to create the vacuum.


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Leading centrifugal pump manufacturers use corrosion-resistant materials and advanced engineering to improve pump life and reduce maintenance costs.


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