KHIA headerKnow-How in Action

VOL XXXI, NO 55

Belzona® Rebuilds And Protects Turbine Runner

 
 

Industry:

Power (POWR)

 
 

Application:

Centrifugal Pumps (CEP)

 
 

Customer Location:

Hydroelectric Plant, Jokkmokk, Sweden

 
 

Application Date:

2014

 
 

Application Situation:

Two impeller runner blades had suffered severe cavitation and erosion damage.

 
 

Problem:

Constant use had damaged the vulnerable cast iron substrate of the impellers. The client needed a quick, long-term solution to avoid downtime to their plant.

 
 

Products:

Belzona 1311 (Ceramic R-Metal)

Belzona 1321 (Ceramic S-Metal)

 

Substrate:

Cast iron

 
 

Application Method:

Application was carried out in accordance with Belzona Know-How System Leaflets CEP-1 and CEP-3. Surfaces were grit blasted prior to rebuilding with Belzona 1311 to restore profiles and coating with Belzona 1321 to provide long-term protection.

 
 

Belzona Facts:

The Belzona solution is cold-applied and simple to use, which meant that repairs and the application could be performed in-situ, avoiding costly disassembly work which would force a long downtime period. Force curing Belzona allowed the plant to return to operational status as quickly as possible, whilst the Belzona application offers a long-term, durable solution.

 
 

Photographs Description

  1. Turbine housing entrance
  2. Cavitation damage to the runner
  3. Close-up of the damage
  4. Completed application
 
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