Galvanic Corrosion In Water Maker Repaired With Belzona

Industry:

Water / Wastewater (WATR)

Application:

Valves, Pipes and Fittings (VPF)

Customer Location:

FPSO UK, North Sea

Application Date:

July 2002

Application Situation:

The fresh water maker started to leak

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.

Products:

Belzona® 1111 (Super Metal)

Belzona® 1321 (Ceramic S Metal)

Substrate:

Carbon Steel

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.

Photographs Description

1. Water Maker
2. One of the areas of galvanic corrosion
3. Forming the repair
4. Repair completed, perfectly formed flange face