Forms the heart of the refrigeration cycle
The refrigeration cycle can't operate without an evaporator and a condenser. Their capacity and design directly determine the efficiency of the chiller or refrigeration unit.
Product group 02
Cooling & Heat Recovery Exchangers
Evaporators and condensers, dry coolers and oil coolers, waste-heat recovery exchangers / economizers. For refrigeration cycle and energy-efficiency applications.
CapacityProject-specific
FluidRefrigerant, water, glycol, oil
Body materialSteel / copper tube
Design pressure10 / 16 / 25 bar
Shell-and-tube evaporator / condenser · dry cooler and economizer types are configured per project
Why it's needed
What does this group add to the facility?
The refrigeration cycle and energy efficiency are two areas that stay invisible in most facilities yet carry the most cost. The right exchanger selection directly affects both.
Lowers the energy bill
Waste-heat recovery exchangers recover part of the heat discarded from the flue or the process back into the system. The investment pays for itself quickly through fuel savings.
Keeps operations running without interruption
Dry coolers and oil coolers prevent compressors and hydraulic systems from overheating. Inadequate cooling is one of the most common causes of shortened equipment life.
Designed around the refrigerant
Different refrigerants require different pressure classes and materials. A mismatch can go beyond a loss of efficiency and become a safety risk.
Types
Which type, for which job?
These pieces of equipment perform different roles in the refrigeration cycle and in energy-efficiency lines. The right choice is made based on fluid type, capacity, temperature-pressure conditions and the application environment.
Evaporators & condensers
The two main heat exchangers of the refrigeration cycle. The evaporator vaporizes the refrigerant to draw heat from the space; the condenser rejects that heat back outside. They are the heart of chillers and refrigeration units.
- Shell-and-tube or plate type
- Material selected by refrigerant
- Tube bundle design based on capacity
Dry coolers & oil coolers
Equipment that cools a fluid such as water or oil by rejecting heat to outside air with the help of fans. Widely used in compressor, hydraulic system and process oil cooling lines.
- Finned-tube coil + fan group
- Water/glycol or oil circuit options
- Fan count and flow rate based on capacity
Waste-heat recovery exchangers / economizers
Exchangers that improve energy efficiency by recovering waste heat from flue gas or a process line. The investment typically pays back quickly through the fuel savings it generates.
- Type matched to flue gas or process waste heat
- High-temperature, corrosion-resistant material
- Can be retrofitted into an existing line
Selection criteria
What data determines the right product?
Capacity alone isn't enough. Once the six items below are clear, the selection narrows to a single model.
ParameterWhy it mattersWhat we need from you
Cooling / recovery capacity
The heat load to be removed or recovered; directly determines the exchanger's size and tube bundle area.
kW
Fluid type
Refrigerant (R134a, R410A, etc.), water, glycol or oil; each requires a different material and pressure class.
Fluid name / mix ratio
Operating temperature and pressure
Evaporation/condensation temperature and operating pressure; determines tube wall thickness and material class.
°C and bar
Environment and installation conditions
Indoor or outdoor; if air-cooled, the fan noise limit — affects layout and acoustic requirements.
Indoor/outdoor, noise limit
Waste-heat source (if applicable)
Flue gas or process fluid; contamination level and temperature determine the economizer material and cleaning interval.
Source type, temperature, flow rate
Connection and mounting
Flanged, threaded or welded connection; determined by integration into the existing line and installation space.
Connection type and size
This much is enough for a quote
You don't need all of it. We'll work out anything missing together with you.
Create a quote request- Cooling / recovery capacity (kW)
- Fluid type (refrigerant, water, glycol, oil)
- Operating temperature and pressure
- Indoor / outdoor, noise limit (if applicable)
- Waste-heat source and flow rate (if applicable)
- Mechanical project or specification, if available
FAQ
Questions from the field
The four questions we hear most often at the quote stage.
Do I need an evaporator or a condenser?
Both are different ends of the same cycle; they're usually ordered together, or as the missing side of an existing refrigeration unit. Share your system diagram and we'll clarify which one you need together.
What's the difference between a dry cooler and a cooling tower?
A dry cooler operates in a closed circuit, with no water consumption or evaporation loss; a cooling tower cools by evaporating water in an open circuit and generally offers higher capacity in a smaller footprint. Dry coolers are preferred in areas with water restrictions.
Does waste-heat recovery make sense in every facility?
The temperature, flow rate and how continuous the waste heat is determine the payback period. Returns can be limited with low temperatures and irregular flow; with continuous, high-temperature sources like flue gas, payback is usually fast.
Can an exchanger be added to an existing cooling line later?
Yes, this is possible in most cases. If we know the existing line's pressure, fluid type and connection sizes, we select an exchanger designed to integrate into the system afterward.
Next step
Let's clarify your requirements together
Share the fluid type, capacity and operating conditions, and let's work out the right evaporator, condenser or dry cooler together.