OVERVIEW: Chemcote were approached to improve corrosion resistance and improve fluid flow efficiency for this Power Generation Customer’s cast iron column pump
INDUSTRY
ENVIRONMENT
Ambient Salt Water
SUBSTRATE
Cast Iron Column Pump
CHALLENGE
Chemcote were brought in to carry out pump refurbishment after catastrophic failure of bearing causing the impeller to wear through the casing of the column pump
SOLUTION
Refurbish pump lining to extend service life using glass flake filled coatings, then top coated using RP 500 to improve fluid flow efficiency
SCOPE
Abrasive blast to AS.1627.4 to class 2.5
Masking and protection of critical tolerances and bush area on flange.
Pit filled to allow smooth transition and prevent coating defects
Sand smooth where necessary & application of RB364 to 1,000µm
Internal & external holiday testing to ensure coating continuity using the required voltage to suit the dry film thickness.
Application of the top coat Ceram-chem™ RP 500
PRODUCTS
Internals
Chem-tect™ RB 364 a glass flake filled vinyl ester
Ceram-chem™ RP 500 a ceramic filled epoxy
Externals
Epo-Chem™ RS 500P a surface and moisture tolerant primer
Epo-chem™ RA 500M a glass flake filled epoxy
OUTCOME
Improved corrosion resistance and fluid flow efficiency through the quality assurance process employed by Chemcote
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