Replacement & interchangeability
Dimensional interchangeability
On compatible models: same footprint, same connections, same fixing points. Remove the old heat exchanger and fit the Davhex one, without changing pipework, brackets or layout.
→ What it means
Swap it, don’t redesign.
Looking for a replacement for a heat exchanger you already have installed? Model AB is designed to match the most used formats on the market, and other models can be dimensionally compatible with specific units: send us your code and we will check, so supply continuity does not depend on a system redesign.
Same footprint
Height, width and hole distances matched to the format you are replacing.
Same connections
Connection size and position matched, with threaded, soldered, welded or Victaulic® options.
Same fixing points
Existing brackets and mounting points stay in place: no changes to pipework or layout.
Interchangeability refers to dimensions, connections and fixing points only. Thermal and hydraulic performance (power, pressure drop, temperatures) depends on the duty and must be verified for each application. Our technical team will help you check it.
→ Dimensions
The range at a glance.
Compare the dimensions of each model with the heat exchanger you want to replace. Not sure which one fits? Send us the brand and code of your current unit.
| Model | Height | Width | Hole distance, height | Hole distance, width | Connectors | Max. plates |
|---|---|---|---|---|---|---|
| Model A | 228 mm | 90 mm | 182 mm | 43 mm | 22 mm | 60 |
| Model AB | 315 – 318 mm | 74 – 76 mm | 278 mm | 40 mm | 20 mm | 60 |
| Model B | 325 mm | 90 mm | 279 mm | 43 mm | 22 mm (1”) | 60 |
| Model C | 463 mm | 94 mm | 415 mm | 43 mm | 22 mm | 60 |
| Model D | 380 mm | 123 mm | 320 mm | 64 mm | 27 mm (1” ¼) | 200 |
| Model F | 535 mm | 125 mm | 471 mm | 64 mm | 27 mm (1” ¼) | 200 |
| Model G | 547 mm | 264 mm | 456 mm | 174 mm | 2” ½ | 300 |
→ Applications
Where replacement happens.
Compatibility is checked case by case across our application areas. Pick yours to see the models and the details.
HVAC
Heating interface units, substations and domestic hot water modules.
Data Center
Heat exchangers for liquid cooling loops and CDUs.
Refrigerated transport
Heat exchangers for refrigeration units on trucks, semi-trailers and containers.
Industrial Cooling
Process cooling and heat recovery on industrial plants.
→ Selection software
Verify the performance, before you order.
Dimensions are only half of the check. The Davhex selection software gives you the optimal sizing for your duty (power, temperatures and pressure drop), so you can confirm that the model you chose performs as required. It is available on davhex.com after licence activation.
→ FAQ
Replacement, answered.
What does dimensional interchangeability mean?
The Davhex heat exchanger has the same footprint, connections and fixing points as the unit you are replacing, so it can be fitted without changing pipework, brackets or layout.
Does it guarantee the same performance?
No. Compatibility is dimensional only. Power, pressure drop and temperatures depend on the duty and must be verified for your application, with the selection software or with our technical team.
How do I find the right Davhex model?
Send us the brand and code of your current heat exchanger using the form below. We will indicate the compatible Davhex model and the details to check.
Can I get a sample to test?
Yes. Polidoro runs a dedicated line for samples and small batches, so prototypes can be supplied without waiting for series production.
Send us the brand and code of your current heat exchanger
Write the brand and code (if available) in the message field: we will tell you which Davhex model is dimensionally compatible.