KHIA headerKnow-How in Action

VOL XXVII, NO 54

Belzona® Quickly Restores & Upgrades Turbine Protection

 
 

Industry:

Power (POWR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Hydropower plant, France

 
 

Application Date:

2011

 
 

Application Situation:

A Francis turbine runner which had been previously coated 15 years ago.

 
 

Problem:

The client wished to renew the coating so as to maintain erosion corrosion protection

 
 

Products:

Belzona® 1341 (Supermetalglide)

Belzona® 2141 (ACR-Fluid Elastomer)

Belzona® 5811 (Immersion Grade)

 

Substrate:

Steel

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet CEP-3.The bottom and top parts only needed a protection against corrosion and not erosion: Belzona® 5811 was used. The middle part had a serious problem of cavitation: Belzona® 1341 and Belzona® 2141 were used.

 
 

Belzona Facts:

The equipment was coated on time and put back into service with minimal delay. Use of Belzona® 2141 System will provide improved resistance to cavitaion over previously used coating.   

 
 

Photographs Description

  1. Blasted runner prior to the application
  2. Mixing of Belzona® 2141
  3. Application of Belzona® 2141
  4. Completed equipment
 
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