1/4" x 1/2" Insulated Copper Pipe for Split AC & HVAC Systems

This 1/4" x 1/2" insulated copper pipe is a high-performance refrigerant line set designed for split air conditioners, mini split systems, and heat pumps. Manufactured with 99.9% pure copper and UV-resistant insulation, it ensures efficient cooling performance, energy savings, and long-term durability in HVAC applications.

1/4" x 1/2" Insulated Copper Pipe for Split AC is two tubes tied together with insulating tape, unlike White Embossed Copper Tube, two tubes can be glued together. For the convenience of transportation, we will pack the tubes very neatly and beautifully. So buy it now.

H2: Product Overview – HVAC Pre-Insulated Copper Line Set

This copper line set includes a 1/4" liquid line and 1/2" suction line, paired and insulated for easy installation.

• Size: 1/4" + 1/2" (6.35 mm + 12.7 mm)

• Length options: 15m / 20m / 25m / 30m / 50m

• Material: 99.9% pure copper

• Insulation: Polypropylene / UV-resistant foam

• Application: Mini split AC, heat pump, central HVAC

It is one of the most commonly used configurations for medium-capacity air conditioning systems.

H2: Key Features of 1/4" x 1/2" Insulated Copper Pipe

H3: High-Purity Copper for Maximum Efficiency

Made from 99.9% pure copper (ASTM B280 & C12200 compliant), delivering excellent thermal conductivity, corrosion resistance, and long service life.

H3: High Pressure Rating for Modern Refrigerants

With a pressure rating of 2100–7000 PSI, this copper pipe supports modern refrigerants such as R410A and R32, exceeding typical HVAC requirements.

H3: Factory-Applied Insulation for Energy Savings

The pre-insulated design reduces heat transfer, improves cooling efficiency, and minimizes energy consumption.

H3: UV-Resistant & Flame-Retardant Insulation

The insulation meets multiple international standards:

• ASTM E84

• UL94

• ASTM D1056

• ASTM G21

Providing fire resistance, UV protection, and durability for outdoor use.

H2: Technical Specifications

H3: Copper Tube Dimensions

• Liquid Line: 1/4 inch (6.35 mm)

• Suction Line: 1/2 inch (12.7 mm)

H3: Insulation & Temperature Range

• Insulation Material: Polypropylene / PE foam

• Working Temperature: -40°C to 120°C

H3: Compliance Standards

• ASTM B280 (Copper tubing)

• ASTM E84 (Fire performance)

• UL94 (Flame resistance)

• ASTM D1056 / G21

These ensure safety, durability, and HVAC compatibility.

H2: Applications – Ideal for Split AC & HVAC Systems

This insulated copper pipe is widely used in:

• Mini split air conditioners

• Heat pump systems

• Central air conditioning systems

• Residential & commercial HVAC installations

It is typically suitable for 1.5–2 ton (12,000–18,000 BTU) air conditioning systems.

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.

H2: Benefits of Pre-Insulated Copper Tubing

H3: Improved Energy Efficiency

Maintains refrigerant temperature and enhances system performance.

H3: Condensation Prevention

Prevents moisture buildup and protects building structures.

H3: Faster Installation

Pre-insulated design reduces installation time and labor costs.

H3: Long-Term Durability

Copper’s corrosion resistance combined with durable insulation ensures extended service life.

H2: OEM & Customization Services

We offer flexible OEM/ODM solutions:

• Custom lengths (1m–50m or more)

• Insulation thickness & material options

• Logo printing on insulation

• Bulk packaging for distributors

Insulated Copper Pipe for Split AC

1/4 + 3/8 Insulated copper pipe for Split AC 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 piping 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 piping 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 line set 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 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 piping apply for 72K - 96K ductless mini split air conditioner.

Why Choose 1/4" x 1/2" Insulated Copper Pipe for Split AC from DABUND PIPE

We are manufacturer of insulated copper pipe since 2008 years, have good experience of producing and exporting. We have cooperated 9 years forwarder, can guarantee the shipment. Every week we load at least 6-8 40HQ to different countries. Choose Dabund You will win the business.

Individual pre-insulated rolls to perfectly fit every ductless mini-splits, VRF, heat pumps and unitary systems installation.

Quality products with competitive pricing

Peace of mind with professional services

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.What is a 1/4" x 1/2" insulated copper pipe used for?

It is used as a refrigerant line set in HVAC systems, connecting indoor and outdoor units in split air conditioners and heat pumps.

2.What size air conditioner uses a 1/4" x 1/2" line set?

This size is commonly used for 1.5–2 ton (12,000–18,000 BTU) mini split air conditioning systems.

3.Why is copper preferred for HVAC refrigerant pipes?

Copper provides excellent thermal conductivity, corrosion resistance, and durability, making it the industry standard for HVAC piping.

4.Why is insulation important for copper pipes?

Insulation reduces heat loss, improves system efficiency, and prevents condensation, especially in humid or outdoor environments.

5.Is this copper pipe compatible with R410A refrigerant?

Yes, it supports modern refrigerants like R410A and R32 due to its high pressure rating and ASTM compliance.

6.Can this insulated copper pipe be used outdoors?

Yes, the insulation is UV-resistant and weatherproof, making it suitable for outdoor installations.

7.What standards does this copper tubing meet?

It complies with ASTM B280, ASTM E84, UL94, and ASTM D1056, ensuring safety and performance.

8.What are the advantages of pre-insulated copper pipes?

They reduce installation time, improve energy efficiency, and ensure consistent insulation quality.

9.Can I customize the insulated copper pipe?

Yes, OEM customization is available, including length, insulation type, branding, and packaging.

10.How do I choose the correct HVAC line set size?

The correct size depends on your air conditioner capacity (BTU/tonnage). Always follow manufacturer specifications for optimal performance.