GALVANIC CORROSION IN WATER MAKER REPAIRED WITH BELZONA

KHIA ID: 908
Industry: Water / Wastewater (WATR)
Application: VPF-Valves, Pipes and Fittings (VPF)
Substrate: Carbon Steel
Customer Location: FPSO UK, North Sea
Application Date: July 2002
Products:

Belzona® 1111 (Super Metal)

Belzona® 1321 (Ceramic S Metal)

Problem: Galvanic corrosion caused by the failure of the insulating gasket caused severe corrosion and under cut the existing glass flake coating. Base material was Carbon Steel plates were Titanium.
Photograph Descriptions
  1. Water Maker
  2. One of the areas of galvanic corrosion
  3. Forming the repair
  4. Repair completed, perfectly formed flange face
Application Situation
The fresh water maker started to leak
Application Method
Application completed in accordance with Belzona System Leaflet VPF-13.
Belzona Facts
Weld repair would have damaged more of the existing coating and onsite machining would have had to be used to reinstate the sealing faces and the bore of the nozzles. Time was key factor as this was an emergency repair situation.
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