1/2 in × 3/4 in × 50 ft Insulated Copper Tubing – Pre-Insulated HVAC Refrigerant Line Set

Premium 50 ft pre-insulated copper tubing with a 3/4″ suction and 1/2″ liquid refrigerant line — designed for efficient refrigerant transport in HVAC systems, ductless mini split air conditioners, heat pumps, and centralized AC units.

Product Overview – High-Performance HVAC Refrigerant Tubing

This 1/2 in × 3/4 in × 50 ft insulated copper tubing delivers consistent performance for residential and light commercial HVAC installations. Factory-applied insulation improves thermal efficiency, reduces condensation, and protects the copper lines from environmental exposure and moisture while facilitating easier installation.

Standard Refrigerant Line Sizes for HVAC Use

• 1/2″ liquid line for refrigerant feed

• 3/4″ suction line for vapor return to the compressor

• Commonly used size pairing for mini split and ducted HVAC systems provides proper refrigerant flow and pressure balance.

50 ft Length for Typical Residential Runs

• Suitable for smaller to mid-sized HVAC installations

• Ideal when indoor and outdoor units are separated by moderate distances

• Reduces the need for multiple line extensions or custom lengths.

Factory-Applied Insulation – Thermal Protection & Moisture Control

Enhanced Thermal Efficiency

Factory-applied insulation helps maintain stable refrigerant temperatures along the copper line, reducing heat gain or loss that can decrease system efficiency.

Condensation Prevention

Pre-insulated tubing minimizes surface condensation, helping protect walls, ceilings, and surrounding materials from moisture damage, mold, and corrosion.

UV-Resistant and Durable Insulation Jacket

The insulation is UV-resistant and suitable for outdoor line runs as well as indoor pathways, offering protection across varied environmental conditions.

Premium Copper Construction for Long-Term Reliability

99.9% Pure Copper Tubing

• Constructed from high-purity copper meeting ASTM B280 and C12200 standards

• Provides excellent thermal conductivity and corrosion resistance for reliable HVAC operation.

High Pressure Capacity for HVAC Systems

Rated for 2100–7000 PSI, far exceeding typical requirements for refrigerants such as R410A, ensuring durability and safety under normal system loads.

99.9% Pure Copper

Black Rubber Insulated Pipe

Plastic Cap

Features of pipe insulation tubing:

● Pipe Insulation, Material Black Rubber, Temp Range -40 Degrees to 120 Degrees.

● The pipe insulation has a better function of moisture condensation. Insulation material is both the insulation layer and moisture-proof layer.

● There is no need to drop the water vapor permeation protective layer so that it has a better moisture condensation function.

HVAC Compatibility & Applications

Works with Mini Split & Ductless AC Systems

This insulated tubing is suitable for installing:

• Ductless mini split air conditioners

• Heat pump systems

• Residential and light commercial AC setups
  It supports proper refrigerant transport and performance across many installation scenarios.

Compatible with Standard Refrigerants

Designed to work with common modern refrigerants, including R410A and R32, meeting standard HVAC operational needs when installed according to manufacturer instructions.

Key Benefits of This Insulated Copper Tube

Saves Installation Time and Labor

Factory-installed insulation eliminates the need for additional field insulation wrapping, saving time and reducing installation costs.

Improves HVAC Energy Performance

Insulated copper tubing helps preserve refrigerant temperature stability, supporting consistent cooling and heating performance with less energy loss.

Protects Against Moisture & Structural Damage

Proper insulation reduces condensation and dripping that could damage building materials or lead to mold, especially in humid climates.

Technical Specifications

(Line sizes and insulation options available for varied HVAC needs.)

Installation Tips for Best Performance

Measure & Plan Line Route Before Install

Correct line length planning minimizes bends and ensures smooth refrigerant flow, which helps maintain system efficiency.

Protect Insulation at Structural Penetrations

Use protective sleeves or grommets where lines pass through walls or ceilings to prevent insulation damage.

Secure with HVAC-Rated Clamps & Supports

Install line supports every few feet to prevent sagging and maintain insulation integrity over time.

Insulated Copper Tubing

1/4 + 3/8 Mini split line set used for 0.75TON - 1.0TON mini split air conditioner.

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

1/4 + 5/8 Insulated copper pipe 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.

All copper line set 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 tubing 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 tubing apply for 72K - 96K ductless mini split air conditioner.

Why Choose This 50 ft Insulated Copper Tubing

Reliable HVAC Performance & Durability

Built with 99.9% pure copper and UV-resistant insulation, this line set provides long-lasting performance, consistent refrigerant flow, and reduced energy loss.

Easy Install for HVAC Professionals & DIYers

Pre-insulated tubing simplifies installation for contractors and experienced DIY installers, helping save time and reduce potential errors.

Ideal for US Residential & Light Commercial Projects

Perfect for homes, apartments, offices, and light commercial applications where a 50 ft HVAC refrigerant line run is required.

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 “1/2″ × 3/4″” mean?

It refers to the outer diameters of the refrigerant lines — 1/2″ for the liquid line and 3/4″ for the suction line, a standard configuration in many HVAC systems.

8.Why is insulation important for HVAC line sets?

Insulation prevents heat gain/loss and condensation, which improves energy efficiency and protects building structures from moisture damage.

9.Is this insulated copper tube suitable for outdoor use?

Yes — the UV-resistant insulation is designed for both indoor and outdoor line runs in HVAC applications.

10.Can this tubing be used with R410A refrigerant?

Yes — this product is compatible with common HVAC refrigerants like R410A and R32 when installed properly.