GNEE's copper tube heat exchangers utilize high-purity seamless copper tubes and hydrophilic aluminum foil fins, ensuring excellent heat transfer performance through a precise mechanical tube expansion process. The products have a maximum working pressure of 45 Bar, an operating temperature range of -50℃ to 150℃, and are compatible with mainstream refrigerants such as R410A/R32/CO2. Customization options include a blue hydrophilic anti-corrosion coating. All products are ISO 9001 certified and undergo 100% airtightness testing, and can be custom-designed and manufactured according to customer system requirements.
Recently, GNEE Company welcomed a delegation of distinguished clients from Thailand. During their multi-day visit, the GNEE team warmly received the clients and arranged tours of the company's offices and manufacturing facilities.





During the visit, the Thai clients toured GNEE's production workshops, gaining firsthand insight into the production process, technical details, and quality control system of copper tube heat exchangers. The advanced production equipment and the professional explanations from the technical team left a deep impression on the clients. The clients expressed high praise for GNEE's technical strength, manufacturing capabilities, and product quality in the heat exchanger field.





In a friendly and candid atmosphere, both teams engaged in in-depth discussions on market demand, technical standards, and supply chain cooperation. Based on the previously established positive communication and the confidence gained from this on-site visit, both parties successfully signed a purchase order for copper tube heat exchangers during the visit.
GNEE Heat Exchanger Product Specifications
| Category | Specification | Description / Options |
|---|---|---|
| Core Design | Tube Material | High-purity seamless copper (C12200/TP2) |
| Fin Material | Aluminum fins (Standard), Copper fins (Optional) | |
| Tube-Fin Bond | Mechanically expanded or brazed | |
| Headers & Manifolds | Brass or copper | |
| Performance | Capacity Range | 1 kW to 500+ kW (Custom designed) |
| Design Pressure (Refrigerant Side) | Up to 45 bar (650 psi) | |
| Operating Temperature | -50°C to +150°C | |
| Fin Density (FPI) | 8 to 20 fins per inch | |
| Dimensions | Tube Outer Diameter | 3/8" (9.52mm), 1/2" (12.7mm), 5/8" (15.88mm) |
| Circuitry | 1, 2, 4, or fully customized | |
| Connection Types | SAE flare, NPT thread, Flange (Customizable) | |
| Features & Options | Fin Coating | Blue hydrophilic coating (Anti-corrosion, optional) |
| Refrigerant Compatibility | R410A, R32, R134a, R407C, CO2, Ammonia, etc. | |
| Certifications & Standards | ISO 9001, CE, UL, RoHS compliant | |
| Quality Assurance | 100% pressure and leakage tested |




