KHIA headerKnow-How in Action

VOL XXVI, NO 83

Belzona® Leading Edge Solution For Wicket Gates

 
 

Industry:

Power (POWR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Turbine manufacturer, France.

 
 

Application Date:

June 2009

 
 

Application Situation:

Wicket gates needing corrosion and abrasion protection

 
 

Problem:

Due to the operating envrionment, wicket gates suffer from corrosion and abrasion on the leading edge, due to entrained solid particles in the water.

 
 

Products:

Belzona® 1341 (Supermetalglide)

Belzona® 2121 (D&A Hi Coat Elastomer)

 

Substrate:

Steel

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet CEP-3. Belzona® 1341 was applied to offer resistance to erosion corrosion. As the leading edges are known to suffer from impact damage due to solids in the water, Belzona® 2121 was applied in two coats (red and black) to offer impact protection in these specific areas.

 
 

Belzona Facts:

French hydro power stations have been using Belzona for erosion corrosion protection for many years. However, the coating was frequently chipped on the edges due to impact. By applying Belzona® 2121 on the edges, the protection is improved and this technique is now in general use in France. Note Belzona® 2141 is now used in place of Belzona® 2121 due to its easier application characteristics.

 
 

Photographs Description

  1. View of the wicket gates after blasting
  2. Belzona® 1341 applied to offer erosion corrosion protection
  3. Belzona® 2121 applied to offer impact resistance
  4. View of the wicket gates completed
 
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