KHIA headerKnow-How in Action

VOL XXVI, NO 126

Belzona® Repair And Protection Of Hydro Plant Draft Tube

 
 

Industry:

Power (POWR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Hydroelectric power station, north Sweden.

 
 

Application Date:

Sept. 2010

 
 

Application Situation:

Hydroelectric power plant draft tube.

 
 

Problem:

Severe damage caused by cavitation in the upper part of the draft tube.

 
 

Products:

Belzona® 4111 (Magma Quartz)
Belzona® 1341 (Supermetalglide)

 

Substrate:

Concrete

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflet CEP-10. After drying and preparing substrate Belzona® 4111 was used to rebuild damaged concrete before coating with Belzona® 1341.

 
 

Belzona Facts:

When the job was inspected one year later, the costumer was extremely satisfied with what he found and Belzona has become the standard repair solution for future repairs on draft tubes. A similar job was done in the autumn of 2011 and another job is planned for 2012.

 
 

Photographs Description

  1. The draft tube being repaired with Belzona® 4111 
  2. The repair area being coated with Belzona® 1341 
  3. The finished application 
  4. The application one year later
 
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