KHIA headerKnow-How in Action


Belzona® Repairs And Coats Pump Case



Mining and Quarrying (MINQ)



Centrifugal Pumps (CEP)


Customer Location:

Mine, Brazil


Application Date:

May 2006


Application Situation:

Pump case.



The equipment presented minor wear due to localized corrosion on the casing. It was necessary to restore the worn areas and apply a lining with excellent corrosion and high temperature resistance. The fluid consists of a caustic soda solution with few solids at a temperature of 81° C. Speed rotation: 1789 rpm.



Belzona 1111 (Super Metal)

Belzona 1311 (Ceramic R-Metal)

Belzona 1391 (Ceramic HT)



Cast Iron


Application Method:

The repair and coating were carried out in accordance with Belzona Know-How System Leaflets CEP -3 & CEP-5. The surface was prepared by dry abrasive blasting at near white metal. After the surface preparation, Belzona 1311 was applied to rebuild the casing and Belzona 1111 was applied on the ring seating. After that, a single coat of Belzona 1391 was applied with a 600 to750 µm thickness on the entire internal surface of the casing.


Belzona Facts:

Belzona offered efficient repair and coating to pumps without the risk of distortion. Belzona 1391 offered excellent protection operating at 81°C.


Photographs Description

  1. Equipment assembled before the repair
  2. Case refurbishment with Belzona 1111
  3. Case refurbishment concluded with Belzona 1111
  4. Service concluded, case lined with Belzona 1391  
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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