Oil & Gas
Heat exchangers for oil and gas in the UAE: thermal equipment engineered for upstream, midstream and refining service, built and serviced in Abu Dhabi.
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Service
Heat Exchanger Maintenance & Overhaul
Heat exchanger maintenance and overhaul in the UAE: complete inspection, repair and overhaul — workshop or site, planned or emergency — by the team that builds them.
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How It Works
A structured overhaul takes an exchanger from as-found condition to documented, tested, design-performance service — with engineering judgement at every gate.
- 1
As-found inspection and performance review establish scope before anything is dismantled.
- 2
Bundle extraction, cleaning (hydrojetting or chemical) and full visual inspection.
- 3
NDT — eddy current or IRIS tube testing, PT/MT of welds — quantifies remaining life.
- 4
Repairs executed: tube plugging or replacement, tubesheet refacing, gasket surface restoration, coating.
Built to
Solve
Engineered against the specific failures that cost operators downtime, contamination or wasted energy.
Asset protection
Deferred exchanger maintenance converts a planned week of work into an unplanned month — leaks, seized bundles and failed tubesheets escalate fast once deterioration passes a certain point.
Process integrity
A leaking exchanger cross-contaminates streams and can shut down an entire unit; found at overhaul, it is a line item — found in service, it is an incident with safety and environmental consequences.
Operational efficiency
Fouled and degraded exchangers silently tax energy consumption every hour; overhaul restores design approach temperatures and the duty the plant was actually built around.
Why Dolphin Group for
Heat Exchanger Maintenance & Overhaul
Manufacturer-grade repair
The same engineers who design exchangers assess yours — repairs are engineered, not improvised.
Speed from Mussafah
Workshop, spares and crews in Abu Dhabi collapse repair timelines that overseas OEMs measure in months.
ADNOC-inducted crews
Field teams carry the inductions, certifications and HSE record that major operators require.
Key
Benefits
What sets heat exchanger maintenance & overhaul from Dolphin Group apart, in specific and measurable terms.
- 1
Single accountable contractor
From inspection through tested return to service — one contract, one point of accountability.
- 2
Quantified remaining life
Eddy current / IRIS tube testing quantifies remaining life — no guesswork on what to replace.
- 3
Code repair capability
ASME U2 R-stamp capability for code repairs, keeping the vessel's certification intact.
- 4
Fleet condition database
Documented condition reports build an asset-life record that carries forward to the next overhaul.
- 5
24/7 emergency response
Emergency mobilisation from Abu Dhabi around the clock, for failures that can't wait for the next shift.
- 6
Manufacturer-backed decisions
Overhaul by a manufacturer — repair decisions are backed by design engineering, not just trade experience.
Technical
Specifications
Design codes, materials and testing scope confirmed for every heat exchanger maintenance & overhaul order.
Equipment covered
Shell & tube · plate · air-cooled · coolers · condensers
Inspection
Eddy current · IRIS · PT/MT · visual · hydrotest
Repair scope
Plugging · retubing · tubesheet refacing · welding · coating
Code repairs
ASME U2 R-stamp
Response
Planned programmes · 24/7 emergency callout
Where It's
Used
Heat Exchanger Maintenance & Overhaul in service, sector by sector, application by application.
Power & Energy
Heat exchangers for power plants in the UAE: HEI-standard condensers, coolers and heat recovery equipment for conventional and renewable generation.
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Petrochemicals
Heat exchangers for petrochemical plants in the UAE: we build exchangers and reboilers for crackers, polymer plants and aromatics complexes worldwide.
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Water & Desalination
Desalination plant heat exchangers from the UAE: we build high-alloy heat exchange equipment for MSF, MED and RO desalination plants.
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Marine & Offshore
Marine heat exchangers built in Abu Dhabi: compact, seawater-tolerant cooling systems for vessels, rigs and offshore platforms.
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Food & Beverage
Food and beverage heat exchangers in the UAE: hygienic plate heat exchangers and process cooling for dairies, beverage lines and food processors.
View SectorFrequently Asked Questions
Yes — overhaul scope is independent of original maker; we service all brands and types.
Crews mobilise from Mussafah within hours for UAE sites, with 24/7 availability during client turnarounds.
Eddy current or IRIS results plus thermal margin: typically beyond about 10% of tubes plugged, retubing becomes the economic answer.
Every overhaul closes with a documented report — as-found condition, work performed, test results and recommended reinspection interval.
Yes — ASME U2 R-stamp repairs and alterations with updated documentation.
Yes — mobile crews perform bundle pulling, cleaning, testing and reassembly at site, internationally.
Yes — thermal review is part of scope; re-baffling, tube upgrades or enhanced surfaces can recover or increase duty.
Contact us with unit details and your outage window; we scope the work in advance so the window is spent executing, not discovering.
Talk to an Engineer About Heat Exchanger Maintenance & Overhaul
Send your duty requirements or existing datasheet, and our engineers will confirm the right configuration.