1/2" x 3/4" x 75 ft Insulated Copper Tubing for HVAC & Air Conditioning Systems

1/2" x 3/4" x 75 ft Insulated Copper Tubing for HVAC Air Conditioning Systems

The DABUND 1/2" x 3/4" x 75 ft insulated copper tubing is engineered for long-distance HVAC and air conditioning installations. It is designed for mini split systems, heat pumps, central HVAC applications, and refrigeration systems that require stable refrigerant flow, durable insulation, and reliable long-term performance.

This pre-insulated HVAC copper line set includes a 1/2" liquid line and a 3/4" suction line with factory-applied insulation. The 75 ft length supports extended indoor-to-outdoor runs while reducing the need for additional joints and helping lower refrigerant leak risks.

Product Overview – 75 ft Pre-Insulated HVAC Copper Line Set

This high-performance insulated copper tubing combines premium copper pipes with factory-applied insulation, delivering a ready-to-install solution for HVAC professionals, contractors, distributors, and project buyers.

• Liquid line: 1/2 inch / 12.7 mm

• Suction line: 3/4 inch / 19.05 mm

• Length: 75 ft / 22.86 m

• Material: 99.9% pure copper

• Structure: twin insulated copper pipes

• Application: HVAC, air conditioning, heat pump, and refrigeration systems

The 75 ft length is designed for longer installation routes, including rooftop units, multi-story buildings, large residential projects, and commercial HVAC applications where pipe distance is a key consideration.

Premium Copper Construction for High-Performance HVAC Systems

99.9% Pure Copper Meets ASTM Standards

The copper tubing is manufactured using high-purity copper and can comply with ASTM B280 and C12200 requirements according to product specification. It supports stable refrigerant transmission, efficient heat transfer, and long-term HVAC reliability.

• Excellent thermal conductivity

• Strong corrosion resistance

• Long service life in HVAC and refrigeration systems

• Reliable refrigerant flow for long line set installations

High Pressure Resistance for Modern Refrigerants

With a pressure rating range of 2100–7000 PSI according to specification, this insulated copper tubing can support modern refrigerants such as R410A and R32 when the pipe size, wall thickness, pressure rating, line length, and equipment requirements match.

Advanced Insulation Technology for Energy Efficiency

UV-Resistant and Weatherproof Insulation

The insulation is made of high-density polypropylene, PE, or rubber material depending on selected specification. It is designed for outdoor use, UV resistance, condensation control, and stable performance in changing weather conditions.

• UV resistance for outdoor installations

• Flame-retardant insulation option, including UL94-related requirements according to specification

• Temperature range: -40°C to 120°C

• Moisture and condensation protection

Triple-Layer Insulation Structure

• Outer layer: UV-resistant PE film

• Middle layer: IXPE foam for thermal insulation

• Inner layer: closed-cell airtight structure

This insulation structure improves thermal protection, reduces energy loss, helps prevent surface condensation, and protects copper tubing during long-term HVAC operation.

Key Benefits of 75 ft Insulated Copper Tubing

Ideal for Long Line Set Installations

The 75 ft length is suitable for extended installation routes where indoor and outdoor units are far apart.

• Rooftop HVAC units

• Multi-story buildings

• Large residential installations

• Commercial HVAC projects

Improved Energy Efficiency

Factory insulation minimizes unnecessary heat exchange, helping maintain optimal refrigerant temperature and reducing energy loss during cooling and heating operation.

Reduced Installation Time and Labor

Pre-insulated tubing reduces the need for additional field wrapping, saving preparation time and improving insulation consistency during installation.

Moisture and Condensation Protection

Closed-cell insulation helps prevent condensation, protecting walls, ceilings, and nearby structures from moisture damage.

HVAC Applications and Wide System Compatibility

This 1/2" x 3/4" insulated copper tubing is suitable for multiple HVAC and refrigeration applications when the line size, installation length, refrigerant type, and equipment requirements match.

• Mini split air conditioners

• Heat pump systems

• Central air conditioning systems

• Refrigeration systems

• Residential and commercial HVAC installations

It is typically used for larger HVAC systems, often in the 3–6 ton or 36,000–72,000 BTU range depending on equipment configuration and manufacturer installation requirements.

99.9% Pure Copper

Black Rubber Insulated Pipe

Plastic Cap Protection

Pipe Insulation Tubing Features

The black rubber insulation provides reliable thermal protection and moisture condensation control. The insulation material can work as both the insulation layer and the moisture-proof layer, reducing the need for an additional vapor permeation protective layer in many HVAC applications.

• Material option: black rubber insulation

• Temperature range: -40°C to 120°C

• Moisture condensation protection

• Thermal insulation and moisture-proof function in one structure

Technical Specifications

Customization and OEM Manufacturing Options

DABUND offers OEM and ODM manufacturing services for wholesalers, distributors, contractors, importers, and HVAC brands that need customized insulated copper tubing solutions.

• Custom insulation colors, including black and white

• Logo printing on insulation

• Custom lengths and pipe size combinations

• Custom packaging for private label supply

• Bulk supply for distributors and contractors

Why Choose DABUND Insulated Copper Tubing?

DABUND delivers a one-stop HVAC solution for copper line sets, insulated copper tubing, installation kits, and HVAC accessories. It supports international customers with manufacturing, customization, export supply, and stable production capacity.

• Over 15 years of HVAC manufacturing experience

• In-house insulation production for consistent quality

• Strict compliance with international standards

• Competitive factory pricing

• Global export capability

• OEM and ODM support for HVAC brands

Insulated Copper Tubing Size Options

Line Set Size and HVAC Capacity Reference

Why Choose 1/2" x 3/4" x 75 ft Insulated Copper Tubing from DABUND?

DABUND has manufactured insulated copper tubing since 2008 and has experience in HVAC line set production, insulation processing, OEM customization, export packaging, and international shipment.

• Manufacturer of insulated copper tubing since 2008

• Experience in producing and exporting HVAC copper line sets

• Long-term freight forwarder cooperation for stable shipment

• Weekly container loading capability for global markets

• Individual pre-insulated rolls for ductless mini splits, VRF, heat pumps, and unitary systems

• Quality products with competitive pricing and professional services

DABUND Factory

We produce insulated copper pipe, mini split line set, aluminum pipe, and HVAC parts for global HVAC customers.

SGS Certificate

DABUND mini split line set insulation can be made of polypropylene or black rubber with UV resistance and can meet ASTM E84, UL94, ASTM D1056, and ASTM G21 standards according to product specification.

Exhibition

DABUND joins HVAC exhibitions worldwide to help customers evaluate mini split line sets, insulated copper tubing, HVAC copper line sets, and HVAC parts face to face.

FAQ

What is 1/2" x 3/4" x 75 ft insulated copper tubing used for?

This insulated copper tubing is typically used for larger HVAC systems, including selected 3–6 ton air conditioning units. It connects indoor and outdoor units and helps ensure efficient refrigerant circulation over longer installation distances.

Why choose a 75 ft copper line set instead of shorter lengths?

A 75 ft line set is suitable for installations where the indoor and outdoor units are far apart. It reduces the need for additional couplings, which can lower leak risks and improve system reliability.

Is this insulated copper tubing compatible with R410A and R32 refrigerants?

Yes. It can support high-pressure refrigerants such as R410A and R32 when the copper size, wall thickness, pressure rating, line length, and HVAC system requirements match.

What type of insulation is used in this product?

The insulation is typically made of UV-resistant polyethylene, polypropylene, or rubber foam with a closed-cell structure. It provides thermal insulation, moisture resistance, and long-term durability.

Can this copper tubing be used outdoors?

Yes. The UV-resistant insulation is designed for outdoor use and helps protect against sunlight, rain, moisture, and temperature fluctuation.

What are the advantages of pre-insulated copper tubing?

Pre-insulated tubing saves installation time, improves insulation consistency, reduces energy loss, helps prevent condensation, and provides a cleaner HVAC installation finish.

Can I customize this insulated copper pipe for my business?

Yes. DABUND supports OEM and ODM services, including custom branding, insulation thickness, insulation color, pipe size, length, logo printing, and packaging customization.

How long does insulated copper tubing last?

With proper installation and suitable operating conditions, insulated copper tubing can provide long service life because of copper’s corrosion resistance and durable insulation protection.

What HVAC systems can use this 1/2" x 3/4" tubing?

It can be used for mini split systems, heat pumps, central air conditioning systems, and refrigeration systems when the equipment manufacturer specifies 1/2" and 3/4" line sizes.

Who should buy this 75 ft insulated copper tubing?

It is suitable for HVAC contractors, installers, distributors, wholesalers, importers, refrigeration project buyers, and private label HVAC brands.