KHIA headerKnow-How in Action


Belzona® Pump Repair - From A To Z



Water / Wastewater (WATR)



Centrifugal Pumps (CEP)


Customer Location:

Water Plant - Egypt


Application Date:

April 2005


Application Situation:

Centrifugal pump



The pump casing, cut water, straighteners, wear ring and gland housing were all suffering from erosion-corrosion. Also, there was a long crack on the cut water.



Belzona® 1311 (Ceramic R-Metal)

Belzona® 1321 (Ceramic S-Metal)



Cast Iron


Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflets CEP-1, CEP-2, CEP-3, CEP-5 and CEP-6.


Belzona Facts:

Belzona repaired everything in the pump - from the casing to the cut water and straighteners, including repairing the wear ring seat and the gland housing. In short Belzona returned this pump which was going to be junk to work again successfuly saving the replacement costs of new pump and providing more resistance to the effects of erosion-corrosion than new one.


Photographs Description

  1. General view of the pump before repair.
  2. The pump after surface preparation. 
  3. Crack of cutwater was repaired and the cutwater and the straighteners were rebuilt. 
  4. Repair complete. Note how the seats and gland housing were perfectly repaired.
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


For more information about Belzona visit: