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Insulated Copper Tube
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Reliable Connection for Split Air Conditioner Systems
Mini split air conditioning systems rely on a stable connection between the indoor and outdoor units.
The PE insulated copper pipe (mini split line set) plays a key role in transporting refrigerant while maintaining thermal efficiency and protecting the copper tube.
At XLBAODI, we manufacture PE insulated copper pipes designed specifically for HVAC installations, providing reliable peformance, consistent quality, and flexible OEM solutions for global partners.
| Item | Specification |
|---|---|
| Copper Material | C1220T /ASTM B280/ EN12735 |
| Copper Purity | 99.9% |
| Insulation Structure | LDPE + IXPE + PE |
| Temperature Range | -40°C to 110°C |
| Insulation Thickness | 8mm / 9mm / 10mm / 12mm / 19mm / Customized |
| Fire Retardant Standard | EN13501-1/ ASTM E84/ M1 |
A mini split system uses refrigerant lines to transfer heat between the indoor and outdoor units.
These lines must ensure:
• Efficient refrigerant flow
• Minimal energy loss
• Reliable insulation protection
• Long-term durability in different environments
Our PE insulated copper pipes are designed to meet these requirements and support smooth HVAC installation.
Each mini split line set is composed of two essential components:
Inner Layer: Copper Tube
Made from 99.9% pure copper (C1220T / ASTM B280)
High thermal conductivity for efficient heat transfer
Compatible with common refrigerants
Copper tubes are produced according to international HVAC standards including:
• ASTM B280
• EN12735
• AS1571
• JIS H3300 C1220T
Outer Layer: Three-Layer PE Insulation
Our insulation uses a three-layer structure (LDPE + IXPE + PE) designed to provide:
• Excellent thermal insulation
• Moisture resistance
• UV resistance
• Long-term durability
This structure helps reduce energy loss and protects the copper pipe during installation and operation.
✔ Stable thermal insulation performance
Helps maintain refrigerant efficiency and reduce heat loss.
✔ Flexible and installation-friendly
Easy to bend and install during HVAC system setup.
✔ Durable insulation protection
Resistant to moisture, UV exposure, and mechanical wear.
✔ Consistent manufacturing quality
Stable production processes ensure reliable pipe performance.
Many HVAC distributors and brands require customized line sets for different markets.
At XLBAODI, we provide flexible OEM solutions including:
• Customized copper pipe sizes
• Insulation thickness options
• Customized pipe length
• Logo printing on insulation
• OEM packaging
• Optional accessories
This allows customers to build their own branded HVAC installation products.
PE insulated copper pipes are widely used in:
• Ductless mini split air conditioners
• Heat pump systems
• Residential air conditioning installations
• Commercial HVAC projects
They are an essential component for reliable and efficient air conditioning systems.
For distributors and HVAC brands, working directly with a manufacturer provides advantages such as:
• Stable product quality
• Flexible customization
• Efficient production planning
• Reliable supply for seasonal demand
With over 20 years of experience, XLBAODI focuses on manufacturing PE insulated copper pipes and supporting HVAC partners worldwide.
Selecting the correct PE insulated copper pipe is essential for ensuring long-term HVAC system performance, energy efficiency, and installation reliability. When choosing the right product, buyers should consider several important factors.
The copper tube diameter should match the cooling or heating capacity of your air conditioning or refrigeration system. Common sizes include 1/4", 3/8", 1/2", 5/8", 3/4", and 7/8". Larger commercial HVAC systems often require thicker wall copper tubing and larger diameters to withstand higher operating pressures.
Insulation thickness directly affects thermal efficiency and condensation prevention.
9mm insulation is suitable for standard residential applications.
12–19mm insulation provides improved energy efficiency in warmer climates.
25mm insulation is recommended for harsh outdoor environments or projects requiring enhanced thermal protection.
XLBAODI offers customized insulation thicknesses to meet different regional standards and customer requirements.
High-quality copper tubing should comply with internationally recognized standards such as ASTM B280, EN12735, AS1571, or JIS H3300. These standards ensure consistent wall thickness, pressure resistance, cleanliness, and compatibility with modern refrigerants including R32, R410A, and R22.
For OEM buyers, customization options such as pipe length, insulation color, logo printing, packaging design, and labeling can simplify inventory management and strengthen brand identity.
Choosing the right insulated copper pipe helps reduce installation costs, improve system efficiency, and extend the service life of HVAC equipment.
The three-layer insulation design enhances heat retention and durability:
Inner LDPE layer: smooth surface for moisture and friction control
Middle IXPE layer: improved thermal resistance and insulation efficiency
Outer PE layer: mechanical protection, UV resistance, and wear resistance
This construction supports consistent performance from the point of fabrication through field installation and long-term operation.
XLBAODI’s customized PE insulated copper pipe is widely used in:
✔ Split air conditioners (refrigerant line sets)
✔ Residential HVAC systems
✔ Light commercial cooling and heating applications
✔ Custom line set manufacturing
✔ Pre-insulated tubing for fabrication and assembly
Copper tube standards: ASTM B280 / EN12735 / AS1571 / JIS H3300
PE insulation fire performance references: EN13501-1, AS/NZS 1530.3 (dependent on insulation grade selected)
Systems built using standardized copper and quality insulation help ensure reliability and compatibility with global HVAC equipment.
Stable thermal insulation promoting system efficiency
Reduced condensation and moisture issues
Durable against weather, abrasion, and aging
Flexible for processing and fabrication
Consistent quality across batches
Every XLBAODI insulated copper pipe is manufactured under strict quality control procedures to ensure stable performance and long service life.
Our production process includes:
Step 1 – High-Purity Copper Tube Inspection
Each batch of copper tubing is inspected for wall thickness, diameter accuracy, and surface cleanliness before production begins.
Step 2 – PE Insulation Extrusion
The copper tube is wrapped with high-quality three-layer PE insulation through an automated extrusion process, ensuring excellent thermal insulation and mechanical protection.
Step 3 – Precision Cutting
Products are cut to customer-specified lengths ranging from 3m to 30m or according to OEM requirements.
Step 4 – Quality Inspection
Finished products undergo dimensional inspection, insulation thickness measurement, appearance inspection, and packaging verification before shipment.
Step 5 – Packaging & Delivery
Products are securely packaged to prevent deformation during transportation and are prepared according to customer packaging specifications.
This standardized manufacturing process ensures consistent quality across every production batch.
