OVERVIEW: Salt Water Strainer had a large amount of external corrosion and severe localised pitting on the internals, particularly around the sealing ring.
Strainer was coated in time for re-assembly and will provide long term protection coupled with a non-toxic anti-foul coating to prevent marine growth.
INDUSTRY
ENVIRONMENT
Sea Water
SUBSTRATE
Salt Water Strainer
CHALLENGE
Inspection of the strainer found there to be a large amount of external corrosion and severe localised pitting on the internals, particularly around the sealing ring
SOLUTION
Due to the amount of metallic salts found after the preliminary abrasive blast it was necessary to hot wash the strainer components in an attempt to lower the salt content. Re-abrasive blasting was carried out and composite materials were chosen to rebuild the metal loss found on the tube plate support ring. Rebuilding this metal loss using our reinforced glass technique Chemcote ensured the tube plate had a flat area to rest on the mounting/sealing ring, in turn reducing costs and the additional time involved with machining.
SCOPE
Abrasive blasting to Chemcote standards
Application of RB 332 to the internals including the rebates
External coating application to System A which includes the application of RL 500PF @ 300um
Application of RC 500GTC Jade Green
Packaging and protection for transport
PRODUCTS
OUTCOME
Strainer was completed in time for re-assembly. RB 332 will provide long term protection coupled with the non-toxic anti-foul coating will prevent marine growth for a minimum of 5 years.
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