KHIA headerKnow-How in Action


Belzona® Restores Vacuum Pump



Food & Drink (FOOD)



Centrifugal Pumps (CEP)


Customer Location:

Brewery, Serbia


Application Date:

April 2016


Application Situation:

Vacuum pump rotor.



The vacuum pump rotor was exposed to aggressive corrosion and its efficient working life was very short. The client required a solution that improved the performance of the damaged pump and gave it new life.



Belzona 1111 (Super Metal)

Belzona 1321 (Ceramic S-Metal)



Cast iron


Application Method:

The application was completed in accordance with Belzona Know-How System Leaflets CEP-1 and CEP-3. After grit blasting the rotor was reconstructed with Belzona 1111. Once the shape of the rotor was reformed it was overcoated with Belzona 1321 to provide future erosion corrosion protection.


Belzona Facts:

Belzona injected new life to three impellers for the cost of one new impeller, whilst at the same time extending the effective service life of the pumps.


Photographs Description

  1. Overall condition of rotor
  2. View of the condition of the rotor
  3. Impeller after grit blasting
  4. Completed application
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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