These strategies focus on practical system improvements that deliver measurable efficiency gains without major capital replacement.
1. Trim impellers
When pumps are oversized, excess pressure and flow waste energy
Impeller trimming is often more efficient than throttling valves
A cost-effective way to match pump output to system demand
2. Use variable frequency drives (VFDs)
VFDs adjust motor speed to meet real-time demand
Ideal for systems with variable flow requirements
Particularly effective in cooling and process control applications
3. Use parallel pumping systems
Running multiple pumps in parallel improves efficiency
Keeps pumps operating closer to their Best Efficiency Point (BEP)
Reduces energy waste during fluctuating demand
4. Reduce pressure loss in pipework
Pipe length, diameter, layout, and material all affect efficiency
Minimise bends and restrictions
Maintain clean, corrosion-free pipework
5. Avoid oversized pumps
Oversizing is one of the most common causes of energy loss
Pumps operating far from BEP consume unnecessary power
Correct pump selection delivers immediate efficiency gains
6. Avoid unnecessary pump operation
Automation and control systems prevent wasted run-time
Sensors and controls ensure pumps only operate when required
Simple changes can deliver significant cost savings
With the right pump selection, system design and controls, energy savings can be achieved without compromising performance.
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These recommendations are based on real-world pumping systems Allflo assesses and supports across industrial, processing and infrastructure applications.