Precision Copper Capillary Tube for refrigeration & HVAC. TP2 copper, OD 0.5-6mm. Ideal for throttling in AC, refrigerators & freezers. ASTM B360. Custom sizes. Get quote!
Our Precision Copper Capillary Tube is a throttling component engineered for refrigeration and air conditioning systems. It creates a controlled pressure drop between the condenser and evaporator, regulating refrigerant flow to ensure stable cooling performance.
Manufactured from high-purity TP2/C12200 copper (≥99.9%), it offers excellent thermal conductivity, corrosion resistance, and reliable performance under low-temperature conditions.
| Parameter | Details |
|---|---|
| Material | TP2, C12200 (Phosphorus-Deoxidized Copper) |
| Copper Purity | ≥ 99.9% |
| Outer Diameter (OD) | 0.5mm – 6.35mm (max. 6.1mm per GB/T 1531) |
| Inner Diameter (ID) | 0.3mm – 4.75mm (max. 4.45mm per GB/T 1531) |
| Wall Thickness | 0.1mm – 3.0mm (customizable) |
| Length | 1m – 6m (standard), or custom lengths available |
| Dimensional Tolerance | OD: ±0.05mm / ID: ±0.025mm |
| Temper | Soft (Annealed) / Half-Hard / Hard |
| Standards | GB/T 1531-2020, ASTM B360 |
Household refrigerators, freezers, and dehumidifiers
Window-type AC units and commercial display cases
Small freon systems up to 10KW
Precision instruments and fluid transportation
| ✅ | Advantage |
|---|---|
| High Purity Copper | ≥99.9% Cu content for superior conductivity and efficiency |
| Precision Tolerances | OD ±0.05mm / ID ±0.025mm for consistent performance |
| Excellent Workability | Supports welding, cutting, and bending for easy installation |
| Corrosion Resistant | Long service life in demanding refrigeration environments |
| Fully Customizable | Diameter, thickness, length, temper, and form (coil or straight) |
We offer flexible customization—OD, ID, wall thickness, length, temper, and packaging format—to meet your specific system requirements. Material Test Certificates (MTC) are available upon request.
Packaging: Coils or straight lengths with protective wrapping, suitable for sea/air freight.
Lead Time: 7–15 days for standard sizes.
Shipping: FOB, CIF, EXW, or as required.
