With a proven design and performance, RAD shell and coil heat exchangers are perfect for refrigerant applications, especially in ground source heat pumps powered by water from well, lake or river.
The HEXONIC RAD shell and coil heat exchanger is dedicated to ground source heat pumps and other refrigerant applications where proven design, strong thermal performance, and compact installation are essential. It is especially suited to systems powered by water from a well, lake, or river.
Direct refrigerant inlet into each of the heat exchanger tubes ensures uniform medium distribution and low maldistribution risk. The RAD offers a high heat transfer coefficient, is designed for modern refrigerants including A2L options such as R32, R452B, and R454B, and is also optimised for propane R290. With compact dimensions and the possibility of vertical installation, the exchanger footprint is greatly reduced. The RAD is designed to work with pressures up to 45 bar.
Key Features
- Designed for ground source heat pumps: The RAD is specifically dedicated to ground source heat pump applications.
- Optimised for refrigerant duty: The exchanger is designed for refrigerant applications and direct refrigerant distribution into each tube.
- Compatible with modern A2L refrigerants: HEXONIC lists R32, R452B, and R454B, and also mentions propane R290.
- Uniform refrigerant distribution: Direct refrigerant inlet into each tube ensures even medium distribution and low maldistribution risk.
- High thermal efficiency: The RAD is described as having a high heat transfer coefficient and high-performance superheating.
- Compact footprint: Compact dimensions and vertical installation help reduce the required installation space.
- Corrosion resistance: The exchanger is made of high-alloy austenitic stainless steel and is described as highly resistant to corrosion.
- Easy assembly: Easy assembly is listed as one of the core product advantages.
- Proven field performance: HEXONIC states that the RAD uses proven technology with thousands of units operating in the field.
- Rated up to 45 bar: The RAD is designed to work with pressures up to 45 bar.
- Standards compliance:Manufactured in accordance with ASME and PED.
RAD
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Shell
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Coilmade of corrugated tubes with an outer diameter of Ø 6mm
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Core
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Mounting
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Pillar
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Welding connection
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External thread
Technical Specifications
| Parameter | Specification |
|---|---|
| Design Standards | ASME; PED |
| Max Design Pressure | shell side (water): 16 bar/232 PSI; coil side (refrigerant): 45 bar/ 650 PSI |
| Max Design Temperature | 200°C/390°F |
| Shell Diameter Range | 80–219.1 mm/4-8.63 in |
| Tube Materials | 316L / 1.4404 |
| Shell Materials | 316L / 1.4404 |
| Design Types | shell and coil heat exchanger; vertical installation |
| Connection Types | refrigerant-side connections from Ø22 × 16.2/15 to Ø22 × 16.2/15, and shell-side threaded connections from G3/4″ to G1 1/4″ |
| Certification | ASME; PED |
Frequently Asked Questions
The HEXONIC RAD is designed for refrigerant applications, especially ground source heat pumps powered by water from a well, lake, or river.
HEXONIC states that the RAD is optimised for modern A2L refrigerants such as R32, R452B, and R454B, and also for propane R290.
The RAD uses direct refrigerant inlet into each heat exchanger tube, which ensures uniform medium distribution and lowers the risk of maldistribution.
The exchanger has compact dimensions, supports vertical installation, and is designed for easy assembly, which helps reduce the installation footprint.
