ASTECHNIK/Offer/Fin heat exchangers

Fin heat exchangers

Fin heat exchangers are a design based on copper or steel tubes equipped with simple or corrugated aluminum fins. The tubes are connected with hard-soldered elbows—without a manifold—which gives this construction exceptional resistance to high operating pressures. This type of heat exchanger is valued wherever the medium pressure excludes standard manifold-based coolers, and where a simple fin geometry is sufficient for the thermal requirements of the application.

OUR SOLUTION ADVANTAGES

© AS-TECHNIK NOWA Sp. z o.o. – 3D model protected by copyright; downloading, copying, and use without the owner’s consent is prohibited.

TECHNICAL APPLICATIONS

Where medium pressure rules out standard manifold-based coolers

High-pressure systems—condensers and evaporators

Fin heat exchangers used as condensers and evaporators in industrial refrigeration systems operating at high refrigerant pressures—where manifold-based designs do not provide sufficient pressure strength.

Heating and cooling of air in industrial installations

Air heaters and air coolers for ventilation units and industrial air conditioning systems—where simple fin geometry provides sufficient thermal performance with low operating costs and easy cleaning.

Applications with high-pressure working fluids

Wherever the medium flowing inside the tubes operates under pressures requiring brazed connections—compressed gases, refrigerants, and other high-pressure media.

INDUSTRIES

USED AMONG OTHERS IN THE FOLLOWING INDUSTRIES

Industrial refrigeration and air conditioning

Condensers and evaporators for industrial refrigeration systems operating at high refrigerant pressures—where brazed fin construction offers higher strength than standard manifold-based coolers.

Power generation and cogeneration

Air heaters and coolers for generator sets and CHP systems—dissipating heat from the cooling fluid to the environment under elevated operating pressure conditions.

Chemical industry

Heat exchangers for air cooling and heating processes where the working medium operates under high pressure and requires tight brazed joints without risk of leakage.

Marine industry

Fin heat exchangers for refrigeration and air conditioning systems on ships—where resistance to high pressures and marine corrosion are equally critical requirements.

WHY FIN HEAT EXCHANGERS?

Where a manifold cannot withstand the pressure—brazed elbows solve the problem

Standard coolers with manifolds have limited pressure resistance—the manifold is structurally the weakest point of the entire system. In a fin heat exchanger, the tubes are connected with brazed elbows, forming a continuous, robust circuit without the stress concentration points typical of manifolds. The result is a structure capable of operating at pressures that would be unacceptable for a standard cooler. It is also worth noting that corrugated fins do not turbulize airflow as strongly as dense aluminum cores used in fan-cooled heat exchangers—their advantage lies in simplicity, durability, and ease of cleaning, rather than maximum air-side heat transfer density.

READ MORE...

OUR RECENT PROJECTS

FAQ

FREQUENTLY ASKED QUESTIONS

The key difference is the way the tubes are connected. In a radiator with a manifold, the tubes are connected to a common manifold, which limits the pressure resistance of the entire structure. In a finned heat exchanger, the tubes are connected with hard-soldered elbows, forming a closed, continuous circuit without a manifold, which significantly increases resistance to high operating pressures.
Thanks to brazed connections, the structure can operate at much higher pressures than standard radiator designs with manifolds. Exact parameters depend on tube material and design — we select them individually for each application.
Yes — but their main role is not to maximize turbulence, but to provide a stable heat exchange surface while maintaining simplicity of construction, durability, and ease of cleaning.
We most commonly use copper tubes and aluminum fins. Material selection depends on the working medium and operating conditions of the installation.
Yes — each project is carried out individually according to the client’s technical, dimensional, and pressure requirements.
Contact us via the form or by phone. Provide the medium parameters, required pressure, and operating conditions — we will prepare a design and a quotation.
×