KHIA headerKnow-How in Action

VOL XXX, NO 29

Belzona® Protects New Stainless Steel Pipe Spools

 
 

Industry:

Power (POWR)

 
 

Application:

Valves, Pipes and Fittings (VPF)

 
 

Customer Location:

Gas Fired Power Station, Avonmouth, UK

 
 

Application Date:

December 2014

 
 

Application Situation:

The Power Station had 2 newly fabricated stainless steel pipe spools which were required to have an internal protective coating.

 
 

Problem:

Previously, carbon steel pipe spools were lined with rubber. During the pipe spool service, various chemicals had broken down the rubber lining and started to corrode the steel. The Power Station opted to replace the pipe work with stainless steel spools and  requested that Belzona supply a solution to prevent internal corrosion. The pipe spools will come in contact with Sulphuric Acid and Chlorine Dioxide diluted in secondary treated sewage water.

 
 

Products:

Belzona 4311 (Magma CR1)

 

Substrate:

Stainless Steel

 
 

Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflet VPF-2. After masking off all areas not to be coated, all edges were radiused and welds ground smooth before being grit blasted and coated with the Belzona 4311 system.  

 
 

Belzona Facts:

Current pipes in service were lined with rubber and when in service this rubber lining was eroded away and caused the pipes to leak Sulphuric Acid. Using the Belzona coating solution the new pipes will have a longer service life.

 
 

Photographs Description

  1. New pipe spools before coating
  2. New pipe spools before coating
  3. Pipe spools after coating
  4. Pipe spools after coating
 
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