KHIA headerKnow-How in Action

VOL XXI, NO 15

Restoration Of Bronze Impeller With Belzona

 
 

Industry:

Water / Wastewater (WATR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

AEP/PSO - Oolagah, OK

 
 

Application Date:

June, 2005

 
 

Application Situation:

Cooling water pump impeller.

 
 

Problem:

This pump impeller, 1 of 4, normally running 24/7 had eroded to the point of replacement.

 
 

Products:

Belzona® 1311 (Ceramic-R Metal)

Belzona® 1321 (Ceramic-S Metal)

 

Substrate:

Bronze

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet CEP-1, CEP-3 and CEP-5. Stainless Steel mesh used to reform vanes. After rebuilding, grinding to original profiles and coating, impeller was re-balanced.

 
 

Belzona Facts:

Downtime was critical in this application and although replacement could be flown in within 6 days, further machining would be required. Belzona application was completed within 3 days.

 
 

Photographs Description

  1. First inspection showing extent of erosion damage
  2. Mesh in place and rebuild proceeding
  3. Grinding to contour
  4. Rebuilt and ready for service
 
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