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Belzona® Increases Efficiency Of Cooling Water Pumps



General Industry (GIND)



Centrifugal Pumps (CEP)


Customer Location:

Steel Mill, Hungary


Application Date:

January 2010


Application Situation:

Pump is used to cool the oxygen jet burners used to re-heat steel alloys in the continuous casting process.



Traces of cavitation, corrosion damage as well as material loss found on the wetted surfaces of the pump. It was necessary to rebuild and coat the inlet, casing and suction cover with Belzona erosion-corrosion resistant products to restore efficiency.



Belzona® 1311 (Ceramic R-Metal)

Belzona® 1341 (Supermetalglide)



Cast Iron


Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflets CEP-1 & 10


Belzona Facts:

After installation the operating parameters of the pump were excellent; the power consumption reduced by 10-12%, from 270-280 amp prior repair to 240-250 amp. The operating pressure increased from the previous 8-8.5 bar to 9-9.5 bar and the flow rate increased from 400 m³ to 450 m³. This means the repaired pumps performance  corresponds to the manufacturer’s original parameters.


Photographs Description

  1. Before application
  2. After grit blasting
  3. Rebuilt and coated pump
  4. Finished application
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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