Nov 26, 2015

LONG TERM PROTECTION FOR WASTE WATER PIPES

When a major utilities company was carrying out a massive extension to one of its waste water treatment plants, Corroserve was contracted to apply a protective coating system to the interior and exterior surfaces of the 2.4 m diameter pipework which takes treated wastewater out to sea.  

When a major utilities company was carrying out a massive extension to one of its waste water treatment plants, Corroserve was contracted to apply a protective coating system to the interior and exterior surfaces of the 2.4 m diameter pipework which takes treated wastewater out to sea. 

With the potential of carrying up to 11,000 litres of water a second, an effective anti-corrosion lining with low maintenance and lifetime costs was required.  After grit blasting the pipes internally and externally to ISO 8501-1 SA 2 ½, the coating package applied comprised:

Polyglass VEF applied to the internal pipe surfaces at 1500 microns to provide superior resistance to chemical attack.   To give extra protection at key erosion points such as bends, abrasion resistant Corrocoat Armagel was applied at 1000 microns. For the external  surfaces  Zip E was applied.  This provides effective protection in the aggressive atmospheric conditions found at waste water treatment plants.

The contract was completed on budget and on schedule.  A spokesperson for the client commented: "Corroserve were selected as they were able to show a large portfolio of similar successfully completed several projects. Their work was to the highest standard and by using the well-respected Corrocoat products they were able to offer us a 60-year lifespan guarantee – something their competitors could not.”

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