3/8 in × 5/8 in × 82 Ft Insulated Copper Pipe – Pre-Insulated HVAC Refrigerant Line

Premium 82 ft pre-insulated copper pipe for HVAC systems, mini split and ductless air conditioners — designed for optimal thermal performance, condensation protection, and long-distance refrigerant runs.

The insulated copper pipe is twin already. So buy it now.

Product Overview – Long Insulated Copper Refrigerant Line for HVAC

The 3/8 in × 5/8 in × 82 ft insulated copper pipe pairs high-purity copper tubing with factory-applied insulation to help maintain refrigerant temperature, reduce heat loss, and minimize condensation. This extended-length line set is ideal for installations where the indoor unit and outdoor condenser are far apart.

Extended 82 ft Length for Flexible Installations

• Ideal for multi-story homes, rooftop units, and long horizontal runs

• Reduces the need for couplings, minimizing leak points

• Supports HVAC layouts with greater distance between units

Standard 3/8 in × 5/8 in Refrigerant Line Sizes

• 3/8 in liquid line for refrigerant feed

• 5/8 in suction line for return gas

• Common sizing for many mini split, ductless AC, heat pump, and HVAC systems

Factory-Applied Insulation for Thermal Performance

Energy-Efficient and Condensation-Free

Pre-installed insulation maintains stable refrigerant temperatures throughout the line set, improving HVAC efficiency and reducing unwanted thermal transfer that can affect performance.

Moisture Control and Surface Protection

The insulation layer helps prevent surface condensation, reducing the risk of water damage, mold, and rot near the refrigerant line pathway.

UV-Resistant and Durable for Outdoor Exposure

Factory-applied insulation is UV-resistant and reliable in varied outdoor environments, protecting the copper tubing from sun, rain, and temperature swings.

Premium Copper Tubing for HVAC Reliability

99.9% Pure Copper Construction

Made from high-purity copper, this line set offers excellent thermal conductivity and corrosion resistance — key for maintaining consistent refrigerant flow and system stability.

Designed to Withstand HVAC Pressure Cycles

Copper tubing is engineered for HVAC applications and supports typical operating pressures in modern systems, providing safety and durability over years of service.

Compatibility & HVAC Applications

Ideal for Mini Split and Ductless AC Installations

This insulated copper pipe is suitable for:

• Mini split air conditioners

• Ductless heat pumps

• Residential and light commercial HVAC systems

Works with Common Refrigerants

Compatible with widely used refrigerants such as R410A, R32, and others, meeting standard pressure requirements for contemporary HVAC designs.

Key Benefits of This Insulated Copper Pipe

Saves Time with Factory Insulation

Pre-insulated tubing eliminates the need for field insulation wrapping, speeding up installation and helping HVAC technicians work more efficiently.

Enhances System Efficiency and Longevity

Insulation helps keep refrigerant temperatures stable, reducing energy loss and contributing to consistent system performance across cooling and heating cycles.

Reduces Condensation and Maintenance Issues

Internal insulation minimizes surface condensation and dripping, preventing moisture-related wear on walls, floors, and other building components.

99.9% Pure Copper

White PE Insulated Pipe

Plastic Cap

Features of pipe insulation tubing:

Machines for the production of thermal insulation pipes

warehouse for insulation pipes

Inner Layer Insulated Pipe

Technical Specifications

Installation Tips for Best Results

Plan the Line Path Before Installation

Measure total distance and choose the smoothest route to avoid sharp bends or kinks, which can restrict refrigerant flow or damage insulation.

Protect Insulation at Penetration Points

Use wall sleeves or conduit where the line passes through structures to protect insulation from abrasion and ensure a clean, professional install.

Secure Long Runs with Proper Clamps or Brackets

Use support clips or HVAC brackets along the line set to prevent sagging, reduce vibration, and protect the insulation from stress.

Insulated Copper Pipe

1/4 + 3/8 Insulated copper pipe used for 0.75TON - 1.0TON mini split air conditioner.

1/4 + 1/2 Mini split line set used for 1.5TON - 2.0TON mini split air conditioning.

1/4 + 5/8 Copper line set used for 2.0TON - 2.5TON split air conditioner system.

3/8 + 5/8 Insulated copper tube apply for 3.0TON - 4.0TON ductless mini split air conditioner.

3/8 + 3/4 Insulated copper tubing used for 4.5TON - 6.0TON split air conditioner installation.

3/8 + 7/8 Insulated copper pipe apply for 6.0TON - 8.0TON ductless mini split air conditioner.

Air conditioning copper line sets 1/4 + 3/8 used for 0.75P and 1P split air conditioning.

Copper pipe kit 1/4 + 1/2 commonly used for 1.5P and 2P mini split air conditioners.

1/4 + 5/8 Insulated copper pipe used for 2P and 2.5air conditioner system.

3/8 + 5/8 Mini-split copper line set apply for 3P and 4P ductless mini split air conditioner.

3/8 + 3/4 Copper pipe kit used for 4.5P and 6P split aircon installation.

3/8 + 7/8 Insulated copper pipe apply for 6P - 8p TON ductless mini split air conditioner.

1/4 + 3/8 Mini split line set used for 9000BTU and 12000 BTU split air conditioner.

Insulated copper pipe 1/4 + 1/2 commonly used for 12000 BTU and 18000 BTU mini split air conditioners.

1/4 + 5/8 Insulated copper line set used for 24000 BTU and 30000 BTU air conditioner system.

3/8 + 5/8 Mini-split line set apply for 36000 BTU and 48000 ductless air conditioner.

3/8 + 3/4 Insulated copper pipe used for 54000 BTU and 72000 split air conditioner installation.

3/8 + 7/8 Insulated copper pipe apply for 72000 BTU - 96000 BTU ductless mini split air conditioner.

Aircon copper line set 1/4 + 3/8 used for 9K and 12K split air conditioner.

High quality copper line set 1/4 + 1/2 commonly used for 12K and 18K mini split air conditioners.

1/4 + 5/8 Insulated copper line set used for 24K and 30K air conditioner system.

3/8 + 5/8 Mini-split line set apply for 36K and 48K ductless air conditioner.

3/8 + 3/4 Insulated copper pipe used for 54K and 72K split air conditioner installation.

3/8 + 7/8 Insulated copper pipe apply for 72K - 96K ductless mini split air conditioner.

Why Choose This Insulated Copper Pipe

Reliable HVAC Performance with Minimal Installation Labor

With long run capability, pre-insulation, and premium copper construction, this line set delivers dependable performance while saving time and reducing onsite labor.

Built for Efficiency, Durability & Weather Exposure

Factory-applied insulation and UV-resistant coating protect your refrigerant lines from environmental wear, making it a strong choice for both indoor and outdoor HVAC use.

Optimized for Both Residential and Commercial Use

Whether installing in a home, apartment, office, or light commercial space, this insulated copper pipe supports efficient HVAC operation across diverse applications.

DABUND FACTORY

We produce Insulated Copper Pipe, Mini Split Line Set and Aluminum Pipe and HVAC Parts

SGS Certificate

Mini Split Line Set is made of Polypropylene or Black Rubber with UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21

Exhibition

We join the exhibitions all over the word, just to facilitate customers to experience our mini split line set face to face.

FAQ

1.Q:What is your payment terms?

A:TT,L/C AT SIGHT,CREDIT CARD etc

2.Q:What is your delivery terms?

A:EXW, FOB, CFR, CIF etc

3.Q:Are you trading company or manufacturer?

A:Manufacturer

4.Q:May I get a sample?

A:Yes, we can send you 3pieces free samples.

   You just charge for the express cost is ok.

5.Q:Can I print my logo?

A:Yes of cause, we accept OEM and ODM.

6.Q:How long is your delivery time?

A:Usually 15-20days, if urgent, we can arrange to do in advance and delivery fast.

7.What does “3/8 in × 5/8 in” stand for?

It refers to the outer diameters of the refrigerant tubes: 3/8 in for the liquid line and 5/8 in for the suction line, a common size pairing for many split AC and HVAC applications.

8.Is this insulated copper pipe suitable for outdoor use?

Yes — the factory-applied insulation is UV-resistant and designed for both indoor and outdoor HVAC line routing.

9.Do I need to add extra insulation on site?

No — factory insulation typically eliminates the need for additional field-wrapped insulation in most installations.

10.Is this line set compatible with R410A and R32 refrigerants?

Yes — this copper tube set is compatible with modern refrigerants such as R410A and R32, meeting typical HVAC system pressure specifications.