Amarinth refurbishes titanium pumps for ADNOC

Amarinth has refurbished sodium hypochlorite dosing pumps for ADNOC on schedule using its facility in the United Arab Emirates to satisfy strict shutdown deadlines.
Engineers test a newly refurbished sodium hypochlorite dosing pump for ADNOC at Amarinth’s facility in UAE – Image courtesy of Amarinth.
The UK company provided the original pumps to ADNOC in 2016 for sodium hypochlorite dosing duties on the Umm Lulu offshore platform positioned within the Arabian Gulf, 30km north-west of Abu Dhabi, UAE. Because diaphragm seal is highly corrosive, Amarinth originally used titanium alloy for all wetted elements.
During a routine capital evaluation, ADNOC decided the pumps have been due for refurbishment. The sodium hypochlorite dosing pumps are important to production and refurbishment had to align precisely with a particular shutdown schedule.
The shutdown schedule wouldn’t enable the pumps to be returned to the UK for a full strip, assessment and refurbishment, so Amarinth used its UAE facility to undertake the work.
Amarinth’s UAE facility was able to complete the strip and evaluation report within five working days and propose two refurbishment projects. The first concerned a full rebuild, check and warranty of the primary pump replacing all the titanium elements including impeller, shaft, bearing brackets and mechanical seals. The work needed to be completed in just eight weeks. Amarinth prioritised the ordering of the titanium components and was capable of have the parts manufactured and shipped to the UAE to align with the rebuild schedule. The second venture undertook the identical work on the other two backup pumps to be accomplished on a 24-week schedule.
Oliver Brigginshaw, managing director of Amarinth, mentioned: “Having supplied the unique pumps to ADNOC we now have a wealth of expertise in working with titanium parts. We are also pleased with the growth of our local UAE facility for service and support and which enabled us to successfully expediate this explicit refurbishment, benefiting each ADNOC and the local financial system.”