Difference Between Centrifugal Pump and Submersible Pump

Published: 29 Jul 2025

If you’re trying to choose between a centrifugal pump and a submersible pump, you’re not alone. These two types of pumps are commonly used for moving water, but they work in different ways and suit different needs. Understanding the difference between a centrifugal pump and a submersible pump can help you pick the right one for your home, farm, or industrial use. Let’s break it down in a simple way so it’s easy to understand and apply.

Submersible Pumps Vs. Centrifugal Pumps

Comparison	Centrifugal Pump	Submersible Pump
Working Environment	A centrifugal pump works above ground, pulling water from below.	A submersible pump operates beneath the surface, pushing water upward through the system.
Pumping Mechanism	Uses centrifugal force generated by rotating impellers.	Can use centrifugal, axial, or mixed-flow impellers depending on design.
Installation	Requires careful alignment, a suction line, and installation on dry, level ground.	Installed directly inside the fluid source—no suction line required.
Priming	Before starting, centrifugal pumps need to be primed either manually or automatically.	No priming is required as the pump is already submerged and filled with fluid by default.
Noise Level	Centrifugal pumps can be noisy due to the operation of their surface motors.	Submersible pumps operate quietly since the motor is underwater.
Motor Design	The motor and pump are separate. A shaft connects them.	In submersible pumps, the motor and pump are sealed together as one unit.
Maintenance	Centrifugal pumps are easier to access and maintain.	Submersible pumps require removal from water for repairs or inspections.
Energy Efficiency	Submersible pumps work better in deep water since they push water up instead of pulling it.	Centrifugal pumps may lose efficiency at higher lifts.
Durability	More vulnerable to dry running and cavitation.	Generally, more robust in handling varying fluid conditions, especially wastewater.
Lifespan	A longer lifespan is possible with well-maintained equipment due to its ease of servicing.	Lifespan may be limited by exposure to corrosive or abrasive fluids.
Cooling Mechanism	Cooled by air or auxiliary methods; may overheat if ventilation is poor.	Cooled directly by the surrounding liquid, reducing the risk of overheating.
Applications	Commonly used for irrigation, HVAC systems, clean water delivery, and moving industrial fluids.	Best for deep wells, sewage systems, underwater drainage, and sump pits.

Conclusion

Choosing between a centrifugal and submersible pump depends on the depth of your water source, ease of maintenance, and energy efficiency needs. If you’re working with surface-level water and want easier access, a centrifugal pump is a practical solution. But if you’re dealing with deep wells or require silent operation, a submersible pump is often the better choice. By understanding the key differences, you’ll be better equipped to select the pump that best suits your system’s needs.

Difference Between Centrifugal Pump and Submersible Pump​

Submersible Pumps Vs. Centrifugal Pumps

Conclusion

Difference Between Centrifugal Pump and Submersible Pump