Use: high thermal conductivity, widely used in air conditioning and refrigeration industry
State: Soft
Standard: GB/T20928 EN12735
20%–30% Higher Thermal Conductivity: Internal grooves increase surface area and significantly boost heat transfer efficiency.
Superior Refrigeration Performance: Optimized flow structure enhances refrigerant turbulence and system cooling efficiency.
Energy-Saving & High Efficiency: Better heat exchange helps reduce energy consumption and overall operating costs.
High Precision & Stable Quality: Advanced manufacturing of our copper tube wholesale ensures uniform grooves, consistent performance, and strong durability.
Easy Processing & Installation: Excellent bendability and weldability improve construction efficiency.
| Serial number | Specification | Outer diameter D/mm | Inner diameter d/mm | Bottom wall thickness TW/mm | Tooth height Hf/mm | Total wall thickness TWT/mm | Tooth tip angleα | Helix Angle β/° | Number of threads n/strip |
| 1 | φ7.00×0.27＋0.15-53-18 | 7 | 6.16 | 0.27 | 0.15 | 0.42 | 53 | 18 | 60 |
| 2 | φ7.00×0.25＋0.18-40-18 | 7 | 6.14 | 0.25 | 0.18 | 0.43 | 40 | 18 | 50 |
| 3 | φ7.00×0.25＋0.22-22-16 | 7 | 6.06 | 0.25 | 0.22 | 0.47 | 22 | 16 | 54 |
| 4 | φ9.52×0.28＋0.15-53-18 | 9.52 | 8.66 | 0.28 | 0.15 | 0.43 | 53 | 18 | 60 |
| 5 | φ9.52×0.30＋0.20-53-18 | 9.52 | 8.52 | 0.3 | 0.2 | 0.5 | 53 | 18 | 60 |
| 6 | φ9.52×0.27＋0.16-30-18 | 9.52 | 8.66 | 0.27 | 0.16 | 0.43 | 30 | 18 | 70 |
| Note: Calculation method for inner diameter: d=D -2 × TWT | |||||||||
