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VOL XVII, NO 51

Belzona® 5851 On Offshore Pipework

 
 

Industry:

Oil & Gas (OILG)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Offshore Oil Company

 
 

Application Date:

October 2003

 
 

Application Situation:

Corrosion Under Insulation (CUI) on heating medium pipework.

 
 

Problem:

The presence of insulation around the heating medium pipework had let to some corrosion of the pipework over a period of time. During a routine inspection it was decided that applying Belzona® 5851 whilst the pipework remained in service represented the best option to prevent future corrosion.

 
 

Products:

Belzona® 5851 (HA Barrier)

 

Substrate:

Rusting Steel

 
 

Application Method:

The pipework was wet-blasted, allowed to dry and any residual aggregate brushed off. Some flash rusting was evident, and considered acceptable prior to application of two 250 micron coats of Belzona® 5851.

 
 

Belzona Facts:

Belzona® 5851 was successfully used and allowed the customer to deal with an important maintenance issue without the need to remove equipment from service or wait for a future shutdown. The use of wet blasting in this instance allowed for rapid removal of the corrosion deposits, as well as ensuring that no non-visible surface contaminants, such as chlorides from the marine environment, were present.

 
 

Photographs Description

  1. Corrosion to heating medium pipework
  2. Application of first coat of Belzona® 5851
  3. Completed application
 
 
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For more information about Belzona visit: www.belzona.com