Copper Capillary Tubes
Ultra-precision copper tubes with microscopic inside diameters for refrigeration metering devices.
Every dispatch includes official EN 10204 3.1 chemical analysis certificates and physical wall load/eddy-current testing documentation.
Product Overview
Zarvadiy Copper Capillary Tubes feature ultra-smooth interior walls and microscopic internal tolerances. They serve as mechanical expansion devices in cooling systems, regulating the precise flow of refrigerant with maximum reliability.
Technical Specifications
| Alloy Grade | Cu-DHP / Cu-ETP Purity 99.9% |
| Inside Diameter | 0.50 mm to 2.50 mm (Tolerance ±0.01 mm) |
| Outside Diameter | 1.20 mm to 4.00 mm |
| Standard Temper | Hard Drawn / Light Drawn |
| Internal Polish | Absolute mirror finish, free of grease and oil residue |
Industrial Applications
Refrigerant flow metering in household refrigerators, freezers, showcases, automotive cooling circuits, and miniature medical chiller systems.
Dimensions & Geometry
Supplied in precise pre-cut straight lengths (1.0m to 3.0m) or custom coil bundles up to 50 kg.
Packaging Specifications
Tubes are blown with dry nitrogen to eliminate humidity, ends are hermetically sealed, and they are packed in solid wooden boxes.
Verified Certifications
Fully compliant with EN 12735-1 and ASTM B360 specifications.
Global Export & Incoterms
Exported on FOB Tashkent, CIF Rotterdam, CIF Hamburg, and CIF Jebel Ali.