Case Study

Pipe Bend Protection Against Sulphuric Acid



Client

Power Generation, UK.

 

Scope of Work 

Client required surface preparation and protection of a pipe. The pipe would be exposed to high concentrations of sulphuric acid, at operating temperatures between 5°C and 30°C.

 

Products 

 

Coating System

  • Masked off any areas not requiring treatment.
  • Abrasive blasted specified internal surfaces with new abrasive in accordance with ISO 8501-1 to Sa2 surface finish, to achieve a minimum surface profile of 50 microns.
  • Complete final blow down, sweep and vacuum cleaned thoroughly to remove dust.
  • Applied Plasmet AR3 to an average DFT of 1500 microns.
  • Carried out thickness testing
  • Spark tested following adequate cure of coating.
  • Carried out thickness testing.
  • Spark tested following adequate cure of coating.
  • Carried out post-cure in accordance with Plasmet AR3 data sheet.
  • Once cured, removed surface protection, dress edges and completed 100% visual inspection.
  • Abrasive blasted the external surfaces with ISO8501-1 to Sa2 surface finish.
  • Applied one coat externally of Plasmet ZF primer.

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