KHIA headerKnow-How in Action

VOL XXXIV, NO 19

Galvanic Corrosion On Flange Solved By Belzona

 
 

Industry:

Fluid Flow (FLOW)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Italy

 
 

Application Date:

Novmber 2016

 
 

Application Situation:

Internal equipment of a naval vessel carrying sea water for the cooling system.

 
 

Problem:

Dissimilar metals were used for the flange connection, leading to galvanic corrosion.

 
 

Products:

Belzona 1161

Belzona 5831

 

Substrate:

Aluminium

 
 

Application Method:

Application was carried out in accordance with VPF-13

 
 

Belzona Facts:

The alternative options were to weld and machine back to the original surface, however this option was not chosen as it would not solve the issue of galvanic corrosion. The second option was to replace the connecting flange using a part made from aluminium. However, this is a costly option. The Belzona solution prevents galvanic corrosion and repairs the damage without the need to replace any parts, saving the customer time and money.

 
 

Photographs Description

1. Corroded Flange 2. Surface preparation complete 3. Rebuilding with Belzona 1161 4. Coated with Belzona 5831

 
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