KHIA headerKnow-How in Action


Belzona® Saves Wastewater Grit Pump



Fluid Flow (FLOW)



Centrifugal Pumps (CEP)


Customer Location:

Montana, USA


Application Date:



Application Situation:

Wastewater grit pump.



This grit pump got extremely worn and had been rebuilt with an alternative method, which lasted only 3 months.



Belzona 1311 (Ceramic R-Metal) 

Belzona 1811 (Ceramic Carbide) 

Belzona 2111 (D & A Hi-Build Elastomer) 



Cast Iron


Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflets CEP-3 & CEP-5. The threads that were worn through were rebuilt with Belzona 1311. The bowl was lined with Belzona 1811. The end cover was rebuilt with Belzona 2111 as a comparison to Belzona 1811.


Belzona Facts:

A replacement pump was very expensive. The previous rebuild had washed out in three months. After Belzona's solution, the pump was opened for inspection 6 months later and found to be in perfect condition.


Photographs Description

  1. Pump bowl with threads rebuilt
  2. Pump bowl coated with Belzona 1811
  3. End cover showing wear
  4. End cover with Belzona 2111 formed in place; excess needs to be trimmed
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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