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Service 03 · Evaporators, Radiators & Dry Coolers

Air-Cooled Condensers

Air-cooled condensers, evaporators, radiators and dry coolers for sites where water is scarce, expensive, or simply not worth the treatment burden.

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Air cooled condenser bank seen from above, fan cowls across the deck and finned coil faces below
0Water consumption
0 °CDesign ambient to
0 rowsCoil depth to
Overview

How we approach it.

Air-cooled heat rejection trades a larger footprint and higher fan energy for the elimination of water entirely — no make-up, no treatment, no blowdown, no legionella management. On many Saudi sites that trade is straightforwardly worth making.

The design question is always the approach to ambient. An air-cooled unit sized against an optimistic peak temperature will fail on exactly the days it matters, so we select against the real design ambient for the site and state the resulting condensing temperature explicitly.

Coils are built to the duty: fin spacing chosen for the dust and sand loading of the location, because a tight fin pitch that blocks in six months is a false economy.

Included in scope

  • Equipment selection
  • Fabrication & supply
  • Site installation
  • Performance verification
On the job

The work, as it runs.

Plant we have installed and equipment we have had apart — photographed on the shop floor and on site, not staged.

Air cooled condenser on steel stands with header pipework, sight glasses and a gate valve at the inlet
Inlet headers and isolation
Condenser coil block with a gauge manifold mounted at the header, plant building behind
Gauge manifold at the header
Dry cooler with the side casing removed, exposing the finned coil and the return bends behind it
Casing off, coil exposed
Air cooled condenser installed beside a process column, headers and supports in the foreground
Installed alongside the plant
Air cooled condenser on its plinth with the liquid and vapour lines running out to the rack
Liquid and vapour lines
Capability

What we can build to.

Ranges below cover the majority of what we make. Duties outside them are reviewed case by case rather than refused on principle.

Air-Cooled Condensers capabilities
Coil constructionCopper tube, aluminium fin
Fin spacing2.1 – 3.2 mmWider pitch for dusty or sandy sites
Coil rows1 – 8
Fin coatingBare aluminium, epoxy or hydrophilic coating
FansAxial, direct drive, optional EC motors and speed control
Design ambientSelected to site — up to 55 °C
CasingGalvanised steel, powder coated

Indicative figures. Final specification is confirmed against your duty and site survey at quotation.

Standards & testing

  • Coils pressure tested before dispatch
  • Fan motors to IP55 as standard
  • Powder coating to site corrosion category
Process

How the work runs.

The same sequence every time, so you know what happens next and what is expected of you at each stage.

  1. 01

    Duty & ambient selection

    Heat rejection load and the design ambient for the actual site. We state the resulting condensing temperature rather than leaving it implied.

  2. 02

    Coil & fan configuration

    Rows, fin pitch and fan arrangement chosen against the site’s dust loading, noise limits and available space.

  3. 03

    Fabrication & supply

    Coil built, casing fabricated, fans fitted and the assembly leak-tested before dispatch.

  4. 04

    Site installation

    Set, piped and wired, with airflow clearances verified so discharge air is not drawn back into the intake.

  5. 05

    Performance verification

    Condensing temperature and air-on/air-off measured against the design figures and recorded.

Applications

Where it is used.

Refrigeration condensingProcess dry coolingEngine and generator radiatorsRemote sites with no water supplyChiller condenser replacementCompressed air aftercooling
Related equipment

Parts and plant for this line.

Questions

Asked before you ask.

Air-cooled or water-cooled?

Water-cooled is more efficient per kW rejected; air-cooled removes water cost, treatment and legionella risk entirely. Where water is expensive or unavailable, air-cooled usually wins on total cost even though it loses on efficiency. We will run both cases if it is close.

How do you handle sand and dust?

Mainly through fin pitch. A wider pitch rejects slightly less heat per square metre but stays clean far longer and can actually be washed down. We would rather sell a slightly larger coil that still works in year three.

Can you replace just the coil in an existing unit?

Usually yes. We measure the existing coil and build a replacement to the same face dimensions and connection positions, which avoids disturbing the casing and pipework.

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Ready to start?

Breakdown response and planned maintenance, Kingdom-wide

Seven service lines. One engineering team. Tell us your load, site and timeline — we will come back with a costed proposal.

Get a free quote+966 55 271 0023