KHIA headerKnow-How in Action

VOL XIX, NO 56

Valve Repair And Protection With Belzona

 
 

Industry:

Power (POWR)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Power plant, Egypt

 
 

Application Date:

June 2004

 
 

Application Situation:

Automatic chemicals valve.

 
 

Problem:

Old polypropylene lining was worn and damaged due to chemical attack.

 
 

Products:

Belzona® 1311 (Ceramic R-Metal)

Belzona® 1321 (Ceramic S-Metal)

Belzona® 5811 (Immersion grade)

 

Substrate:

Cast Iron

 
 

Application Method:

Application was carried out in accordance with modified version of Belzona Know-How system leaflet VPF-1 and VPF-2. A former was made by casting Belzona® 5811 to take the inner shape of the valve. The eroded areas were then rebuilt with Belzona 1311, using the Belzona® 5811 former to restore the inner curvature profile of the valve. After finishing the surface it was coated with Belzona® 1321 to protect the valve.

 
 

Belzona Facts:

Belzona repaired the valve and protected it using simple economic means. It was important to retain the inner dimensions of the valve as this affects the performance of the valve.

 
 

Photographs Description

  1. The valve before repair
  2. Former made by casting with Belzona® 5811
  3. Belzona® 1311 applied to the valve
  4. Two valves were repaired and protected
 
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