KHIA headerKnow-How in Action

VOL XXVI, NO 71

Belzona® Renews Old Pumps

 
 

Industry:

Power (POWR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Power Plant, Croatia

 
 

Application Date:

2011

 
 

Application Situation:

4 cooling water pump impellers which had been in service for 15 years.

 
 

Problem:

When stripped down for inspection severe erosion damage on the impellers was found to be the cause of lost performance.

 
 

Products:

Belzona® 1311 (Ceramic R Metal)

Belzona® 1321 (Ceramic S Metal)

 

Substrate:

Stainless steel

 
 

Application Method:

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

 
 

Belzona Facts:

In 2007 the customer asked for renewal and protection of pump casings with Belzona® 1311 and Belzona® 1321. After 4 years in service the casings showed no significant wear. The customer was convinced of the quality of Belzona and ordered the renewal and protection of the impellers with the same Belzona system.

 
 

Photographs Description

  1. Up-close damage
  2. Rebuilding of the impeller profile
  3. Applying the first coat of Belzona® 1321
  4. Impeller completed with a second coat of Belzona® 1321
 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 Case study pic four

 

 
 
For more information about Belzona visit: www.belzona.com