Photo of a condenser

Remove heat from a gaseous stream through condensation

Industrial condensers take a process stream in gaseous form, cool it below its dewpoint and discharge it with most of the material as a liquid. They are a form of gas-to-liquid heat exchangers.

How a condenser heat exchanger works

Types of Condenser

There are two types of condenser: air-cooled and liquid-cooled. The gaseous stream enters the condenser, where heat is removed, either by ambient air or liquid. The cooled stream becomes a liquid, which is discharged or recycled back into the process.

The cooled condensate may have become contaminated with other materials. If so, the stream will undergo further treatments before being discharged to the environment.


One common application is a steam condenser/surface condenser, where exhaust steam from a turbine is collected and reused in liquid form. In this way, condensation goes hand-in-hand with heat recovery and reduces the operational costs of a plant.

Why choose Sterling TT as your partner for condensers


We have access to an extensive range of materials. It means we can supply you with the best solution depending on your process fluid and ambient air conditions.

Robust design

We tune the mechanical design philosophy to the application. When we define the mechanical build parameters, various factors guide us. They include end-user and third-party specifications and international rules.

Optimum design

We weigh mechanical, thermal, and commercial considerations to define the most cost-effective solution to meet your requirements.

Long-lasting and reliable condensers

Our exemplary standards of internal controls ensure the highest integrity for all completed condensers.

Design considerations

When it comes to condensers, our mechanical designs take into account the process and the ambient conditions. Our thermal design works to optimise the heat transfer rate. We combine these with our understanding of environmental conditions to select the optimal materials for the job.

Our expertise in fin design, our understanding of extended fin surfaces and their applications, helps us to deliver customised solutions for specific applications and environments. We can apply an extensive range of finned surfaces: from the conventional wrapped fin, through tube-in-plate options, to high-temperature tube-in-plate configurations (internally developed and tested).

If the process aims to recover heat into an airstream, we consider the airflows and required outlet temperature in the design of the condenser.

A case study and a happy customer

As a leading industrial condenser manufacturer, we have experience helping clients across industry sectors such as chemical and power generation.

icon of a quote mark“Worn Again Technologies required a greater level of flexibility to allow the management of change as they are developing their process technology. Sterling Thermal Technology allowed the flexibility to design the equipment based on limited data and Good Engineering Practice to meet the design specifications.”

Dr Michael Wise, Chemical Process Engineer, Worn Again Technologies

condenser designed and manufactured by Sterling Thermal Technology for the circular economy

Download our case study with Worn Again Technologies for which we designed and manufactured a high-temperature solvent condenser with interconnecting piping and a separation vessel.

As a recognised manufacturer of gas-to-liquid heat exchangers, including steam condensers, let us work with you to design and manufacture the best solution for you. Contact us for a quote today.

If you feel you need another type of heat exchanger, visit our products and services page or contact us.

Customised heat exchangers

Over 100 years of design & manufacturing knowledge

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We customise our heat exchange solution to meet your requirements, so contact us today to discover the right equipment for you.

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