Closecoupled pumps are characterized by a common motor and pump shaft or by their motor shaft and pump shaft being rigidly connected in a pump casing. The pump casing is bolted to the drive flange rather than being installed on pump feet.

A close-coupled centrifugal pump is a variation of a centrifugal pump built to save time, money, and hassle by eliminating separate couplings and frame mounts requiring tedious alignments. The separate coupling of a traditional centrifugal pump is required to move the energy from the motor to the pump. Coupling alignments are of the most expensive and time-consuming elements of traditional centrifugal pumps.

Due to the versatility, simplicity, and cost-saving design of close-coupled centrifugal pumps, they are useful in many industries. Close-coupled centrifugal pumps are traditionally used with simple seals – meaning the temperature and corrosive nature of some liquids can’t be used. The use of simple seals (or none at all) isn’t necessarily a weakness of close-coupled centrifugal pumps. Some applications benefit from the sealless ability of close-coupled centrifugal pumps.

However, if the liquid you are working with has a high temperature or corrosive attributes, a traditional centrifugal pump could be your solution.

With no bearings in this pump design, the motor bearings must handle the axial and radial loads of the application. This limits the size and power of the motor used.



– fewer parts due to the elimination of the coupling

– a close-coupled centrifugal pump has only one motor shaft and one set of bearings, giving it a smaller footprint 

– no tedious alignments required



– has simple seals therefore not applicable for higher temperatures or corrosive fluids

** Many of Forte Fluid Systems Centrifugal Pumps are a combination of multiple Centrifugal Pump types. For example and End Suction Pump (Between Bearing) that has a Closed Impeller. **

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