Upgrades and retrofit solutions

Discover our broad range of upgrade and retrofit solutions for optimizing the reliability, availability, flexibility and energy input of your pumps.

Retrofitting pumps: The smart alternative to buying new products

During repair work, pump components can be modified, replaced or added in order to match your pump better to your requirements. Frequently used measures are the adjustment of the hydraulic system to changed operating data, adaptations to increase the efficiency, retrofitting of sensors for enhanced monitoring or the use of different materials for a longer service life.

A pump upgrade by KSB makes your pump better than new, meeting your exact requirements.


When your pump has reached its wear limit and replacing it with a current type series would require the system to be modified, KSB offers you tailored solutions: By keeping the same “footprint”, i.e. the mating dimensions of the system interfaces, a minimal shutdown time and cost-optimized implementation without requiring any structural modifications are ensured.

The existing stable infrastructure can thus often be retained. This avoids the high investments that would otherwise be required for modifications to the foundation or piping.

Retrofitting solutions from KSB for your pump will help you to improve your system’s productivity, lower CO2 emissions, reduce maintenance costs, increase production availability and fulfill legal requirements. Transform old into new.

Our portfolio


  • Adjustment of hydraulic system to match changes in process requirements 
  • Material upgrades and coatings
  • Mechanical upgrades 
  • Individual pump control systems
  • Modernization of pump drives


  • Pumps from our current or discontinued product program will be adjusted to your system

Your benefits

  • Save investment costs (CAPEX) thanks to same mating dimensions and cutting-edge technologies
  • Reduced energy costs and CO2 emissions (OPEX) 
  • Adjustment of the pump to changes in process conditions (more capacity and/or higher efficiency)
  • Lower maintenance costs and higher reliability (OPEX)
  • Compliance with legal requirements
  • Guaranteed availability of spare parts

This is what KSB can do for you!

Hydraulic modifications

  • Remachining of existing impellers 
  • Installation of new impellers for off-design conditions 
  • Reduction of NPSH-required value by installing an inducer or suction stage impeller 
  • Optimization of volute casing for off-design conditions 
  • Adjustment of the number of stages (on multistage pumps) 

Mechanical adjustments

  • Closed bearing brackets improve the smoothness of operation and extend the bearing life 
  • Installation of mechanical seal systems 
  • Employment of cellular surface wear rings to improve efficiency, rotor dynamics and dry running properties 

Optimized materials

  • Super duplex stainless steel grades or nickel alloys 
  • Ceramic mineral castings for impellers, wear plates, cover and casing – for use with finely dispersed, highly abrasive solutions 
  • Non-metallic rings and bushes 
  • Ceramic plain bearings 
  • Surface coatings

SES System Efficiency Service

Pumps that are not optimally matched to the system consume too much energy. Thanks to SES System Efficiency Service from KSB, this doesn’t have to be the case.

  • Energy efficiency analysis
  • Damage analysis
Reverse Engineering for pumps and valves

Reverse Engineering

Reverse engineering makes it possible to quickly manufacture spare parts for pumps, valves, and other rotating equipment that are hard to find or no longer available. 

  • Quick reproduction of spare parts
  • Replacements for parts that are no longer being manufactured
  • Engineered to OEM standards or optimized and improved for the job