KHIA headerKnow-How in Action

VOL X, NO 7

Belzona® Gives Spiral Casing And Vanes New Lease Of Life

 
 

Industry:

Power (POWR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Hydroelectric Power Station in Japan

 
 

Application Date:

January 1996

 
 

Application Situation:

Spiral casing and vanes

 
 

Problem:

Erosion/corrosion caused by river water.

 
 

Products:

Belzona® 1341 (Supermetalglide)

 

Substrate:

Mild steel

 
 

Application Method:

In accordance with Belzona Know-How Leaflet CEP-3. The casing and vanes were blast cleaned and the existing lining material (tar epoxy) peeled off. Belzona® 1341 was applied by airless spray. The coating was then tested for pinholes.

 
 

Belzona Facts:

The customer could have had the casing and vanes recovered in tar epoxy which would have been cheaper, but this type of material is not enviromentally friendly. The major benefit is the extension of the life of the casing which is irreplaceable.

 
 

Photographs Description

  1. Surface preparation underway in the spiral casing  
  2. Casing coated with Belzona® 1341   
  3. Application completed by coating vanes
 
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