Case Study

Case Study – Repairing Ballast Pump for an FPSO


Major Commercial Shipping Company, UK.


The Challenge

We were approached by the client to repair a badly damaged ballast pump casing. As can be seen in the images below, the pump had pulled in a large item that had cracked open the casing at the bottom of the suction chamber.


The Solution

After arrival at our workshop the service team cut out the affected area and welded in a new bronze plate, prepared volute casing by abrasive blasting the surface to a Sa2 1/2 to provide a minimum surface profile of 50 microns. They then laminated over the affected area inside and out. Finally, the casing was coated with Corroglass 600 series to a DFT of 1.25mm inside and painted to the requested RAL outside.


Results and Benefits

The professional preparation and repair of the casting before coating and the use of Corroglass 600 will ensure that the casing will be in service for many more years. The specialist coating used is designed to provide protection against corrosion in immersed conditions.


Coating Credentials

We have the experience and expertise to either coat from new or provide remedial coatings to process equipment. The bespoke coating systems used are determined by the operating conditions and mediums. Our coating systems have provided unrivalled levels of corrosion in the harshest environments in over 40 years.



Repairing ballast pump for an FPSO


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