KHIA headerKnow-How in Action

VOL XXXIII, NO 109

Belzona® Repairs Leaky Pipes From A Heat Exchanger

 
 

Industry:

Local Authorities & Municipalities (LOMU)

 
 

Application:

Heat Exchangers (HEX)

 
 

Customer Location:

France

 
 

Application Date:

August 2018

 
 

Application Situation:

Sealing between tubes and tubular sheet required repairing.

 
 

Problem:

Sealing problem between the tubes and the tubular sheet on these heat exchangers due to a bad tube expansion, 50% of the tubes were leaking.

 
 

Products:

Belzona 9111 (Cleaner Degreaser)
Belzona 1111 (Super Metal)
Belzona 5892

 

Substrate:

Carbon steel

 
 

Application Method:

The tubular sheet and the tube ends were grit blasted and cleaned with Belzona 9111 (Cleaner Degreaser) . Belzona 1111 (Super Metal) was used to rebuild the profile between the tubes and substrate then Belzona 5892 was applied on top for further protection against aqueous solutions. The application was carried out in accordance with a modified version of  HEX-1 followed by HEX-3 Belzona System Leafleat 

 
 

Belzona Facts:

The customer considered welding or dismantling the tubes to redo the tube expansion but it would have been too long and costly. The customer trusts Belzona products and has already used them for other works in his factory. For that reason and the speed of the intervention from the distributor, he was really satisfied by the application. 

 
 

Photographs Description

1- View of the equipment before application 2- Final application 

 
Case study pic one

 

 
 Case study pic two

 

 
 Case study pic three

 

 
 

 

 
 
For more information about Belzona visit: www.belzona.com