Amarinth refurbishes titanium pumps for ADNOC

Ironclad has refurbished sodium hypochlorite dosing pumps for ADNOC on schedule using its facility within the United Arab Emirates to fulfill strict shutdown deadlines.
Engineers check a newly refurbished sodium hypochlorite dosing pump for ADNOC at Amarinth’s facility in UAE – Image courtesy of Amarinth.
The UK firm equipped the original pumps to ADNOC in 2016 for sodium hypochlorite dosing duties on the Umm Lulu offshore platform located within the Arabian Gulf, 30km north-west of Abu Dhabi, UAE. Because sodium hypochlorite is extremely corrosive, Amarinth originally used titanium alloy for all wetted components.
During a routine capital assessment, ADNOC decided the pumps have been due for refurbishment. The sodium hypochlorite dosing pumps are crucial to production and refurbishment had to align precisely with a specific shutdown schedule.
The shutdown schedule wouldn’t allow 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 assessment report inside 5 working days and suggest two refurbishment initiatives. The first concerned a full rebuild, test and warranty of the first pump changing all the titanium elements together with impeller, shaft, bearing brackets and mechanical seals. The work needed to be completed in simply eight weeks. Amarinth prioritised the ordering of the titanium elements and was able to have the parts manufactured and shipped to the UAE to align with the rebuild schedule. The second venture undertook the same work on the other two backup pumps to be accomplished on a 24-week schedule.
Oliver Brigginshaw, managing director of Amarinth, stated: “Having equipped the original pumps to ADNOC we now have a wealth of experience in working with titanium parts. We are also pleased with the growth of our native UAE facility for service and help and which enabled us to successfully expediate this explicit refurbishment, benefiting both ADNOC and the native economic system.”
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