Our copper U-bend fittings (return bends) are precision-engineered components designed for use in heat exchangers, condensers, evaporators, and HVAC/R systems. Made from high-quality seamless copper tube, these fittings ensure reliable performance, excellent heat transfer, and long service life.
Key Features:
• Material: Premium seamless copper (ASTM B280/B75 standard)
• Shape: 180° U-bend (return bend)
• Sizes Available: 1/4” to 1-1/8” (6mm to 28mm)
• Applications: Air conditioners, refrigeration systems, condensers, evaporators, chillers, and industrial heat exchangers
• Performance: High thermal conductivity, corrosion resistance, and easy brazing installation
• Customization: OEM sizes, wall thickness, and packaging available upon request
Benefits:
• Provides smooth refrigerant flow with minimal pressure drop
• Reduces leakage risk with precise sizing and tight connections
• Simplifies tube layout in coil and condenser manufacturing
Size Chart (Common Sizes)
| Size(inch) | Size(mm) | Application Example |
|---|---|---|
| 1/4″ | 6.35mm | Capillary & small coil |
| 5/16″ | 7.94mm | Domestic A/C units |
| 3/8″ | 9.52mm | Condensers / Evaporators |
| 1/2″ | 12.7mm | Chillers, split units |
| 5/8″ | 15.88mm | Large HVAC coils |
| 3/4″ | 19.05mm | Industrial heat exchangers |
| 7/8″ | 22.2mm | Commercial refrigeration |
| 1-1/8″ | 28.6mm | Heavy-duty HVAC applications |
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