Air Cooled Heat Exchangers

What They Are

Air Cooled Heat Exchangers

Air-cooled heat exchangers are an efficient, low-maintenance cooling solution designed to remove heat from process fluids using ambient air instead of water.

At Hunt, we design and manufacture bespoke air-cooled units that use fan-driven airflow over finned tube bundles to transfer heat directly to the atmosphere.

Ideal for water-scarce or remote locations, our air-cooled heat exchangers offer a reliable and environmentally friendly alternative to traditional cooling systems.

They are widely used in power generation, oil and gas, petrochemical, and industrial applications where performance, durability, and energy efficiency are essential.

What They Are

Steam Air Heaters

Steam air heaters use steam to warm air as it passes over finned tubes, providing an efficient and reliable heat source.

They are widely used for process heating, drying, and space heating in industrial environments.

By transferring energy from steam to air, they help maintain consistent temperatures for production processes and comfortable working conditions.

Hunt Thermal designs steam air heaters for durability, energy efficiency, and consistent performance.

Where They Are Used

Hunt’s heat transfer equipment is used extensively across power stations — including fossil fuel, biomass, and waste-to-energy plants — as well as chemical, petrochemical, oil and gas, and manufacturing facilities.

Our products deliver reliable, efficient thermal management, whether supplying heated air for process and space heating or removing heat from critical systems where water is limited.

By providing consistent performance and energy-efficient operation, our solutions help optimise industrial processes, reduce operating costs, and support long-term sustainability in demanding environments.

Our Tubes

We supply a wide range of tube types to suit your specific application requirements. Our offerings include:

✔ Basic Tubes ✔ KL- Finned Tubes

✔ L-Finned Tubes ✔ G-Embedded Finned Tubes

✔ LL-Finned Tubes ✔ Extruded Finned Tubes

By tailoring tube selection to your application, we ensure optimal thermal performance, durability, and cost-effectiveness.

Our Headers

✔ Removable Cover Plate – Box formed by header frame and tube sheet; cover plate is bolted on for removal during cleaning/maintenance. Nozzles can be on the frame or the cover plate. Standard limit ~50 bar, but higher is possible with special designs.

✔ Welded Bonnet – Bonnet header is welded to the tube sheet, with process nozzles on the bonnet. No access to tubes or tube-to-tube sheet joints. Suitable up to ~100 bar.

✔ Plug Header – Fully welded box header with removable plugs opposite each tube for cleaning. Suitable for high-pressure applications up to ~250 bar.

Our Design

Hunt Thermal designs and manufactures all air-cooled heat exchangers in-house, fully customised to meet each project’s specifications and certified standards, including ASME VIII Div.1, EN13445, PD5500 % API 661 .

Our engineering team uses industry-leading software to ensure optimal thermal performance, structural integrity, and long-term reliability:

✔ Aspen EDR – Thermal design

✔ PROBAD – Pressure parts design

✔ SolidWorks – 3D modelling and drafting

✔ Bentley STAAD.Pro – Structural design

✔ Bentley AutoPIPE – Pipe stress analysis