LWC Copper Tubes

High Efficiency Copper Tubing for Air Conditioning & Refrigeration

LWC copper tubes (Light Weight Coil) and inner grooved copper tubes (IGT) are widely used in air conditioning, refrigeration, and heat exchanger systems. These tubes offer excellent heat transfer efficiency, easy processing, and compact coil packaging, making them ideal for modern HVAC applications.

Inner grooved copper tubes feature enhanced internal surface area, which significantly improves heat exchange performance and reduces system size.

Vulroc Tube supplies high-quality LWC copper tubes and IGT copper tubes for air conditioners, condensers, evaporators, and refrigeration equipment.

 

 

Key Advantages & Technical Features

  • Superior Heat Transfer Efficiency:
    The internal grooves increase the inner surface area by 20–30% compared to smooth tubes. By optimizing the helix angle and fin geometry, the tube enhances nucleate boiling and condensation, directly improving the SEER and EER ratings of HVAC systems.

  • Cost-Effective Light Weight Coil (LWC):
    Designed for automated coil-fed production lines in heat exchanger manufacturing. The lightweight coil format reduces material waste during bending and expands, lowers transportation volume, and minimizes welding points in the final assembly.

  • High Cleanliness & Longevity:
    Manufactured via continuous extrusion to ensure zero leakage risks. The inner surface undergoes strict degreasing with residual oil content controlled to ≤ 2 mg/m², preventing capillary blockage in the refrigeration circuit and extending compressor life.

Technical Specifications

Available for customization based on customer requirements.

Specification
Material Grade TP2 / C12200 (Compliant with ASTM, EN, JIS, GB)
Outer Diameter (OD) 4 mm – 9.52 mm (Custom sizes available)
Bottom Wall Thickness 0.20 mm – 0.35 mm
Groove Geometry Helix Angle: 18° – 30°; Tooth Height: 0.10 – 0.25 mm
Number of Grooves 40 – 70 (High-density options available)
Package Form Light Weight Coil (LWC) – Level Wound / Pancake Coil
Coil Weight 10 kg – 50 kg per coil (Customizable)
Temper Soft (O) / Light Drawn

Certifications & Standards

  • Quality Management: ISO 9001, IATF 16949 (for automotive thermal applications)

  • Product Safety: UL Certified (for North American market)

  • Environmental Compliance: RoHS, REACH

  • Manufacturing Standards: ASTM B280, EN 12735-1, GB/T 20928

Packaging & Logistics

  • Packaging: Each coil is wrapped in moisture-proof paper, secured on a wooden pallet, and covered with heat-shrink film to prevent oxidation.

  • Protective Atmosphere: Purged with nitrogen (N₂) and sealed with rubber plugs to protect the inner wall from oxidation during long-term storage or sea freight.

  • Handling: Pallet dimensions optimized for forklift loading. Coil weights designed for both manual handling and automated production lines.

Applications

  • Air Conditioning: Residential split AC, VRF systems, central air conditioners, window units.

  • Refrigeration: Commercial freezers, display cabinets, water coolers, refrigerators.

  • Heat Pumps: Heat pump water heaters, EV thermal management systems, dryers.

FAQ

What is LWC copper tube?
LWC stands for Light Weight Coil copper tube, supplied in continuous coil form.

What is inner grooved copper tube?
IGT copper tube has internal grooves to improve heat transfer performance.

What is the advantage of inner grooved tubes?
They increase heat transfer efficiency and reduce system size.

What material is commonly used?
C12200 copper (Cu-DHP) is most commonly used.

Are these tubes used for air conditioners?
Yes, widely used in air conditioning and refrigeration equipment.

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