KHIA headerKnow-How in Action

VOL XXXI, NO 41

Wicket Gates Repaired With Belzona

 
 

Industry:

Power (POWR)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Montana, USA

 
 

Application Date:

2000

 
 

Application Situation:

Wicket gates at a hydroelectric power station.

 
 

Problem:

Surface preparation of a previous application was inadequate for the repair of these wicket gates. The coating was failing due to poor adhesion to an improperly prepared surface. Constant erosion and corrosion of these wicket gates caused repeated applications from time to time, but the service times were becoming too frequent in comparison to previous performance.

 
 

Products:

Belzona 1311 (Ceramic R-Metal)

Belzona 1321 (Ceramic S-Metal)

Belzona 9111 (Cleaner/Degreaser)  

 

Substrate:

Steel

 
 

Application Method:

The application was carried out in accordance with a modified version of Belzona Know-How System Leaflet VPF-1, VPF-2, and Belzona Instructions For Use.

 
 

Belzona Facts:

Hydroelectric Power station needed consultation on coating applications. Over time, maintenance practices were lost due to attrition of employees. Belzona consultant heard about the longevity of repairs becoming shorter on a visit to customer. Consultant came during next application and trained the application crew. The support of Belzona products from manufacturing to the end user prevented this customer from performing this maintenance technique more frequently than needed. Customer remarked seven years later how much of a difference the improvement in application made. Belzona product performance and customer service saved this hydroelectric company the expense of multiple applications, wear and tear on critical equipment, and potentially equipment failure.

 
 

Photographs Description

  1. Poor surface preparation caused coating to fail
  2. Surface properly prepared
  3. Application of Belzona 1321
  4. Three wicket gates coated
 
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