KHIA headerKnow-How in Action


Belzona® Doubles Pump Service Life



Petrochemical (PETR)



Centrifugal Pumps (CEP)


Customer Location:

Petrochemical Plant, Ukraine


Application Date:

December 1999


Application Situation:

Centrifugal pump used for mixture of paraffin and petrolatum between -30°C and +30°C. Due to the build-up of product, the  system is washed once a day with a mixture of MEK and Toluene at 80°C.



Due to crystallization of paraffin erosion-corrosion damage occurred on the case of the pump and cover. Acquisition of certain parts of the pump was not possible.



Belzona 1311 (Ceramic R-Metal)

Belzona 1391 (Ceramic HT)



Cast Iron


Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflets CEP-5 and -3. areas were rebuilt using forming techniques.


Belzona Facts:

Repair was done within 8 hours. In 3 days the pump was returned to service. Using Belzona  allowed the customer avoid having to purchase new pump parts. this application increased average service life of such pumps from 4368 hours to 9168 hours.


Photographs Description

  1. Grit blasted casing
  2. Pump cover before rebuilding
  3. Belzona® 1311 applied to casing
  4. Completed application
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


For more information about Belzona visit: