Presented at the 55th International Congress and Exhibition KGH 2025, Belgrade

Below is an overview of the main HEXONIC heat exchanger series, their advantages, and areas of application.

HEXONIC is among the European leaders in the development and production of heat exchangers. At KGH 2025 in Belgrade, the company will present its complete range of solutions for heating, cooling, heat pumps, refrigeration and industrial processes.

Heat exchangers are at the core of the HEXONIC portfolio — from compact brazed plate models, through high-performance shell-and-tube units, to advanced shell-and-coil constructions for steam and demanding applications.

L – Brazed Plate Heat Exchangers

The L series includes vacuum-brazed plate heat exchangers (copper or stainless-steel brazing).

Advantages

· compact, hermetically sealed, high heat transfer density
· excellent capacity-to-size ratio
· minimal maintenance, long service life
·wide operating range of temperatures and pressures

Applications

HVAC, heating, cooling, heat pumps (water-to-water, water–glycol), commercial systems, and low- to medium-load industrial processes.

R – Brazed Heat Exchangers for Refrigeration (Refrigerant BPHE)

The R series is optimized for working with refrigerants and working fluids in refrigeration technology and heat pumps.

Characteristics

· special plate pattern for two-pass and multi-pass flows
· high resistance to compressor pulsations
· compatible with R290, R32, R134a, CO₂ (selected models)
· customized geometry for evaporators, condensers or expansion modules

Applications

Refrigerated display cases, commercial and industrial refrigeration, heat pumps, variable-load systems.

JAG – Gasketed Plate Heat Exchangers

The JAG series features classic plate-and-frame heat exchangers with special JAG channels.

Advantages

· gasketed and fully serviceable design – easy cleaning and plate expansion
· stainless steel or titanium plates (ideal for aggressive media including pool water)
· double-wall option available for critical installations
· FEM-optimized frame for strength and long service life

Applications: HVAC, district heating substations, swimming pools, industry, process systems.
· JAG-Shield – Plate-and-Shell Heat Exchangers
· JAG-Shield combines the benefits of plate and shell-and-tube heat exchangers.

Advantages
· high efficiency thanks to JAG plates
· compact and lightweight construction
· resistant to high pressure and aggressive fluids
· low pressure drop, minimal installation space

Applications: refrigeration systems, economizers, industrial processes, CIP systems, aggressive media.

Shell-and-Tube Heat Exchangers
a) DNA – Spiral Tube Bundle (Helicoid Tube Bundle)

Advantages

·spiral tube bundle → 2× higher heat transfer coefficient
· turbulent flow and low dead zones
· suitable for viscous fluids
· compact and robust design

Applications: steam, gases, viscous media, industrial processes, high-flow systems.

c) REV – 3-Pass Shell-and-Tube Heat Exchanger

Advantages
· three-pass configuration (longer heat flow path)
· corrugated tubes for increased turbulence and reduced fouling
· stainless steel or titanium

Applications: swimming pools, heat pumps, solar systems.

d) B – Specialized Pool Heat Exchangers

Advantages

·straight, corrugated tubes for high flow and low pressure drop
· ideal for chlorinated and fluorinated pool water
· robust welded construction

Applications: swimming pools, solar systems, fluid pre-heating.

Shell-and-Coil Heat Exchangers (JAD, HAD)
a) JAD – Shell-and-Coil with Spiral Tubes

Advantages

· compact, highly efficient, turbulent flow
· vertical installation
· fully stainless-steel construction (AISI 304L–321 or 316L)
· multiple connector options (welded, threaded, Victaulic)

PED and ASME certification

Applications: steam, heating, heat pumps, industrial processes.
(HEXONIC’s best solution for steam.)

b) HAD – Shell-and-Coil with Insulation

Advantages

· factory-insulated and installation-ready
· horizontal connections → easy installation
· turbulent flow thanks to corrugated tubes
· reduced installation and maintenance costs

Applications: HVAC, heating, technical building systems.

CAIRO HEXONIC – Professional Heat Exchanger Selection Software

CAIRO is an advanced software tool enabling precise calculation and selection of heat exchangers based on:

· primary and secondary inlet/outlet temperatures
· flow rates and fluid densities
· viscosity, heat capacities, conductivity
· allowable pressure drop
· operating mode (steam, cooling, condensation, evaporation, water–water, glycol–water)
· material requirements (AISI304L, AISI316L, titanium)

The software automatically recommends:

· the optimal heat exchanger type (L, JAG, DNA, JAD, JAG-Shield)
· size, surface area, and number of plates/tubes
· working pressure and temperature
· connection configuration
· pressure drop calculation and expected performance

CAIRO is widely used as part of the engineering process in all serious HVAC&R companies, installers, and design firms.

Conclusion: Why HEXONIC?

Today, HEXONIC covers the entire spectrum of heat exchangers — from small brazed units for heat pumps to large industrial shell-and-tube systems and advanced plate-and-shell solutions for steam.
With fully stainless-steel construction, high pressures, exceptional efficiency and the CAIRO selection software, HEXONIC enables reliable, long-term systems for HVAC&R, industry and energy.

We look forward to seeing you at the HEXONIC booth at KGH 2025 — Hall 4, Stand 78.