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Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale Dehydrated Copper Tube

Dehydrated Copper Tube

-- Steady & Reliable Manufacturer --

The Critical Standard for Moisture-Free Refrigeration

Dehydrated copper tube is a specialized category of tubing where the removal of all internal moisture and contaminants is the primary manufacturing objective. At Zhejiang Jingliang, we recognize that "Moisture is the Enemy" of modern refrigeration and air conditioning systems. When even a tiny amount of water remains inside a tube, it can react with refrigerants and oils to form hydrofluoric or hydrochloric acids, which eat away at the compressor’s motor windings and cause "Sludge" that clogs expansion valves. Our dehydration process involves heating the tubes in a vacuum or a dry nitrogen atmosphere to ensure the "Dew Point" of the internal air is extremely low. These tubes are manufactured to the ASTM B280 standard, which is the global benchmark for Air Conditioning and Refrigeration (ACR) field service.

The process begins with high-purity C12200 copper. After the final drawing and "Bright Annealing" stages, the tubes are flushed and dried. To ensure they stay dehydrated, we seal the ends with "High-Pressure Plastic Caps" or "Shrink-Sleeves" immediately after the drying process. This creates a "Time Capsule" effect, preserving the bone-dry interior until the tube is opened by the technician on-site. Dehydrated tubes are most commonly sold as "Pancake Coils" for residential split-system installations or as "Straight ACR Lengths" for commercial racks. By using Jingliang Dehydrated Copper, you are ensuring that the refrigeration system starts "Clean and Dry," which is the single most important factor in preventing "Infant Mortality" of compressors and ensuring the high SEER ratings of modern HVAC equipment.

Purity & Dehydration Specifications

FeatureACR Dehydrated Specification
Internal Moisture Content≤ 0.01 g/m² (Exceeds ASTM B280)
Internal Residue (Oil/Solid)≤ 0.038 g/m²
Material GradeC12200 (Cu-DHP, 99.9% Pure)
Nitrogen PurgeAvailable upon request (High-Pressure Seal)
End ProtectionGasketed Plastic Caps / Induction Seal
TemperSoft Annealed (Coils) / Hard (Straight)
Standard ComplianceASTM B280 / EN 12735-1 / AS 1571
Burst PressureTested to 5x standard operating pressure
Wall Thickness Tolerance± 0.05mm
PackagingIndividually shrink-wrapped / Boxed

Residential AC, Commercial Cold Storage, and Heat Pumps

Dehydrated copper tubes are the primary choice for "Split-System Air Conditioners" and "Mini-Splits," where they form the liquid and suction lines between units. They are essential in "Commercial Refrigeration" for walk-in freezers and supermarket display cases where long-term system reliability is critical. In "Heat Pump Installations," they provide the clean, dry environment needed for the efficient transfer of thermal energy. They are also used in "Mobile Air Conditioning" (MAC) for buses and trains. Because they are ultra-clean, they are often used as "Sampling Lines" in environmental monitoring equipment. Any application involving "Phase-Change Refrigerants" (R-410A, R-32, R-134a) necessitates the use of dehydrated tubing to prevent the formation of acid and ice crystals that would destroy the system components.

System Longevity and Acid Prevention

The most critical advantage is "Compressor Protection"—by eliminating moisture, our tubes prevent the "Acidification" of the system oil, which is the leading cause of motor burnout. "Prevention of Ice Blockages" is another key benefit; in systems operating below freezing, any internal moisture will freeze at the expansion valve, causing the system to fail. Our tubes provide "Installation Confidence," as the factory-sealed caps ensure the pipe is "Ready-to-Breeze" without the need for additional on-site cleaning or flushing. The "Internal Brightness" of our tubes ensures there are no carbon deposits that could break loose and clog filters. Copper’s "Excellent Thermal Conductivity" ensures maximum efficiency, while its "Natural Corrosion Resistance" provides a 50-year service life. For the contractor, using "Standardized ACR Sizes" ensures compatibility with all professional flare and press-fit tools, "Reducing On-Site Errors" and ensuring a professional, leak-proof finish every time.

Sealed Logistics for Moisture Control

To maintain dehydration, we use "Reinforced Shrink-Wrap" for every coil and package them in "Moisture-Barrier Cartons." Payment is 30% T/T and 70% against B/L. We ship from Ningbo, offering "Job-Site Ready" packaging with clear size and specification labels. We provide "Mill Test Certificates" that explicitly state compliance with the ASTM B280 "Cleanness and Dehydration" requirements. Our logistics team ensures that the cartons are kept dry during the entire shipping process, using "Silica Gel Desiccants" in the containers to manage humidity during long sea voyages. We also offer "Nitrogen-Charged" tubes for high-end commercial projects where an extra layer of protection is required.

  • Q: What happens if I leave the tube uncapped for a few hours?
  • A: Copper is "Hygroscopic" to some extent in that moisture from the air can condense inside. You should always re-cap any unused portion of a coil immediately to maintain its "Dehydrated" status.
  • Q: Can I use standard plumbing pipe for AC instead of dehydrated tube?
  • A: No. Standard plumbing pipe (ASTM B88) contains residues and moisture that will destroy a refrigeration compressor. Only B280 Dehydrated tube should be used for ACR.
ABOUT US
30+YEARS OF
EXPERIENCE
About Us

A Reliable Partner of the Copper Tube Industry

Zhejiang Jingliang Copper-Tube Products Co., Ltd is China Dehydrated Copper Tube and Dehydrated Copper Tube Factory, which established in 1994, has been deeply involved in the copper tube industry for over three decades. The company primarily produce various specifications of products such as copper tubes, brass tubes, copper square tubes, fin copper tubes, copper capillary tubes, condenser copper tubes, copper evaporator tubes, and conductive rods, which are of quality and have earned the trust and acclaim of customers both domestically and internationally.

Wide Applications:

These products are widely used in various fields including air conditioning, refrigeration, heat exchange, sanitary ware, automotive, machinery, electric furnaces, and chemical industries.

Convenient Transportation:

Strategically located in Tangpu Town, renowned as the “home of copper tubes” in East China. Our company enjoys a prime location, adjacent to the Shangsan Expressway and National Highway 104, and is conveniently situated just over 70 kilometers from Hangzhou and Ningbo, ensuring easy accessibility and a business position.

Strong Financial Resources:

With its strong financial resources and advanced copper tube processing technology, our company holds an advantageous position in market share, brand value, technological content, and product quality, becoming a preferred supplier for many listed groups.

Large Scale Production:

The company occupies an area of over 20,000 square meters, with a construction area of 12,800 square meters. In 2022, our annual production exceeded 7,500 tons, with a value output of up to 450 million yuan, demonstrating our strong production capacity and market competitiveness.

Comprehensive Industry Chain:

Jingliang has now developed into a complete industrial chain integrating smelting, extrusion, drawing, precision rolling, and annealing. It has been awarded multiple honors, including "Top Ten Copper Tube Enterprises" and "Leading Taxpayer in the Copper Tube Industry".

Smart Manufacturing:

Jingliang Copper-Tube Products will better integrate the concept of factory construction into its corporate development strategy, insist on refining technology and polishing products more finely, and the future of "intelligent manufacturing".

Genuine Cooperation:

Zhejiang Jingliang Copper-Tube Products Co.,Ltd warmly welcomes friends from all walks of life to visit and offer guidance. We look forward to joining hands with you to create a brilliant future together.

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