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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Equipment
Air-Cooled Heat Exchangers
API 661 air-cooled heat exchangers and fin fan coolers in the UAE, engineered for 50°C+ Gulf ambient conditions, where water is scarce and reliable heat rejection is critical.
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The Anatomy of a
Air-Cooled Heat Exchanger
Finned Tube Bundle
Staggered rows of tubes carrying the hot process fluid, each wrapped in aluminium fins that multiply the air-side surface many times over.
Drag to rotate
For representation purposes only.
Built to
Solve
Engineered against the specific failures that cost operators downtime, contamination or wasted energy.
Asset protection
Coolers rated for 35°C ambient collapse in a Gulf summer — process temperatures climb and trips follow exactly when demand peaks. Ambient design margin is not optional in this region, it is the whole spec.
Process integrity
Vibration, fan failure and fouled fins silently erode capacity until the exchanger becomes the plant bottleneck. None of these show up on a control-room screen until duty has already been lost.
Operational efficiency
Where water is scarce or expensive, air cooling removes the cooling-tower water bill entirely — if the thermal design is honest about ambient. An optimistic design temperature undoes that saving the first hot afternoon.
Why Dolphin Group for
Air-Cooled Heat Exchangers
Designed for this climate
Forty years of Gulf operation means our ambient design assumptions are real — your cooler performs in August, not just on the datasheet.
Bundle replacement specialists
We reverse-engineer existing bundles and re-rate them for changed duties, reusing structures and drives.
ADNOC-approved fabrication
API 661 fabrication under ASME U2 Stamp at Mussafah with Local+ contribution for your procurement scoring.
Key
Benefits
What sets air-cooled heat exchangers from Dolphin Group apart, in specific and measurable terms.
- 1
Zero water consumption
No cooling tower, no chemistry, no blowdown — one less water treatment programme to run and maintain.
- 2
Honest ambient rating
API 661 design rated for 50°C+ Gulf ambient conditions, not a home-market ambient assumption.
- 3
Structure-matched replacement
Replacement bundles re-rated and fabricated for existing structures, so the surrounding steelwork stays untouched.
- 4
Certified headers
ASME U2-stamped headers with full NDT and hydrotest documentation on every unit shipped.
- 5
Environment-matched fins
Fin metallurgy selected for coastal and industrial atmospheres, where standard aluminium fins corrode fast.
- 6
In-house schedule control
Design and manufacturing under one roof means no subcontracted queue or handover delay — a firm delivery date, with support in place once it's running.
Technical
Specifications
Design codes, materials and testing scope confirmed for every air-cooled heat exchangers order.
Design code
API 661 · ASME U2 Section VIII Div.1
Tube materials
CS · SS · Duplex · Ti (headers to match)
Fin types
Embedded (G) · Extruded · L-foot · Knurled
Fan diameter
Up to 5.5 m, forced or induced draft
Control options
Auto-variable pitch · VFD · Louvres
Design software
HTRI ACE · PV Elite
Design and Manufacturing
API 661 thermal design in HTRI ACE through ASME U2 code-stamped headers, engineered for real Gulf ambient extremes rather than a home-market default.
Refurbishment
Bundle re-rating and replacement engineered to reuse existing structure, fans and drives, so only the finned surface that has failed gets replaced.
Servicing
Fin cleaning, fan and drive inspection, and bundle condition assessment that catch vibration and fouling losses before they cost duty.
Long Term Contracts
Scheduled bundle and fan inspection programmes that keep cooler capacity documented across every Gulf summer, not just at commissioning.
Where It's
Used
Air-Cooled Heat Exchangers 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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Data Centers
Data center cooling systems in the UAE: high-availability cooling infrastructure for the world’s fastest-growing digital economy.
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Steel & Metallurgy
Steel plant heat exchangers and cooling equipment: furnace cooling, quench systems and dust-laden gas coolers built for the hardest environments in industry.
View SectorFacilities Management
Facilities management HVAC and chiller maintenance in the UAE: building services cooling and mechanical maintenance for commercial and mixed-use developments at Gulf ambient temperatures.
View SectorFrequently Asked Questions
We recommend 50°C dry-bulb minimum for inland UAE sites, with performance checked at the true summer peak — not the 35–40°C defaults common in imported designs.
Yes — we measure the existing bay, re-rate thermally for current duty, and fabricate drop-in bundles that reuse your structure, fans and drives.
Forced draft is cheaper to maintain and the usual default; induced draft gives better air distribution and less recirculation for tight approach duties.
Extruded aluminium fins fully sheath the tube and resist coastal corrosion best; embedded fins suit higher temperatures inland.
Variable-pitch fans, VFDs or louvres — often combined — hold outlet temperature stable across large ambient swings.
Both: complete API 661 units with structure, fans and drives, or bundles-only for retrofit.
Low-noise fan selections routinely meet 85 dB(A) at 1 m, with lower targets achievable by fan choice and tip speed.
Send bundle dimensions or the original datasheet through our RFQ form; a site measurement visit can be arranged from Mussafah within days.
Talk to an Engineer About Air-Cooled Heat Exchangers
Send your duty requirements or existing datasheet, and our engineers will confirm the right configuration.