KHIA headerKnow-How in Action


Tough And Lasting Belzona® Protection For Pump In Desulfurization Unit



Power (POWR)



Solids Handling Machinery (SHM)


Customer Location:

Power Plant, La Spezia, Italy


Application Date:

December 2014


Application Situation:

Rubber coated pump cone in a desulfurization unit at a fossil power plant. 



The cone was suffering from severe dry abrasion in the presence of strong concentrations of sulfides. Previously applied rubber coating started to peel, leading to leakages between flange couplings. Leaking corrosive substance in turn attacked the underlying metallic substrate, thus reducing the efficiency and the working life of this component.



Belzona 1811 (Ceramic Carbide)



Carbon Steel


Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet SHM-13. The failed rubber coating was removed, the substrate was then grit blasted and a thick layer of Belzona 1811 was applied to protect the cone from further abrasion damage.


Belzona Facts:

This Belzona solution succeeded where a competitive system had failed. After a year in service, Belzona 1811 is still in a as new condition, to the customer's delight. The Belzona solution effectively enhanced efficiency and the working life of this component.


Photographs Description

  1. Original holed rubber lining
  2. Application of Belzona 1811
  3. Application of Belzona 1811
  4. Inspection after 1 year in service
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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