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