1/2 in. x 3/4 in. x 82 ft. Pre Insulated Copper Tubing

1/2 in. x 3/4 in. x 82 ft Pre-Insulated Copper Tubing for HVACR Systems

The 1/2 in. x 3/4 in. x 82 ft pre-insulated copper tubing from Dabund is designed for HVACR applications, ductless mini split systems, heat pumps, centralized air conditioning units, and refrigeration line installations. It combines 99.9% pure copper tubing with black rubber insulation to support stable refrigerant flow, thermal efficiency, and long-term system reliability.

Dabund has produced HVAC parts since 2008, including pre-insulated copper tubing, mini split line sets, insulated copper pipes, aluminum pipes, and HVAC installation accessories for global contractors, wholesalers, distributors, and OEM buyers.

Product Overview – 82 ft Pre-Insulated HVAC Copper Line Set

This 1/2" x 3/4" pre-insulated copper tubing is a professional HVAC line set solution for connecting indoor and outdoor units. The 82 ft length provides flexible routing for medium and large HVAC installations where a longer refrigerant line run is required.

• Product size: 1/2" x 3/4"

• Metric outer diameter: 12.7 mm x 19.05 mm

• Length: 82 ft / approximately 25 m

• Material: 99.9% pure copper tubing

• Insulation: black rubber insulation / polypropylene insulation options

• Insulation thickness: 1/2" option available

• Working temperature: -40℃ to 120℃

• Application: HVACR, mini split, heat pump, centralized ducted AC, refrigeration systems

The black rubber insulation has strong flame-retardant performance and is suitable for indoor and outdoor construction environments where moisture control, energy efficiency, and pipe protection are required.

Key Features of 1/2 in. x 3/4 in. x 82 ft Pre-Insulated Copper Tubing

1/2" x 3/4" HVAC Copper Tube Size

The 1/2" x 3/4" size refers to the outer diameter of the copper tubes. The 1/2" tube and 3/4" tube can be used as liquid and suction lines according to HVAC equipment requirements and manufacturer specifications.

99.9% Pure Copper Construction

The copper pipe is made from 99.9% pure copper and meets ASTM B280 and C12200 standards. High-purity copper provides excellent thermal conductivity, corrosion resistance, pressure stability, and long service life for HVAC refrigerant line applications.

Full AC Copper Size Range Available

Dabund can produce multiple AC copper tube sizes, including 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", and 1 1/8". Custom lengths such as 15m, 20m, 25m, 30m, and 50m are available for different HVAC projects.

UV-Resistant and Flame-Retardant Insulation

The insulation is made with polypropylene or black rubber material and can meet ASTM E84, UL94, ASTM D1056, and ASTM G21 requirements. The insulation supports a working temperature range from -40℃ to 120℃.

High Pressure Rating for HVAC Refrigerants

The pressure rating can reach 2100 to 7000 PSI, supporting HVAC refrigerant line applications that require safe operation under high-pressure refrigerants such as R410A and R32 when system specifications match.

OEM Printing on Insulation Jacket

Dabund produces insulation in-house and can print company name, pipe size, meters, brand information, and private label markings directly on the insulation jacket for OEM and wholesale buyers.

Copper Tube and Insulation Performance

Copper Tube: ASTM B280 and C12200 DHP

The copper tubing is manufactured for HVACR systems that require clean internal surfaces, stable wall thickness, strong pressure resistance, and efficient refrigerant circulation.

High-Density Closed-Cell Insulation

The insulation uses high-density closed-cell polyethylene foam or black rubber insulation to reduce heat transfer, prevent condensation, resist moisture penetration, and improve energy efficiency.

• Working temperature meets or exceeds ASTM C1427-07 requirements

• UL94 flame-retardant performance

• UL723 surface burning characteristics support

• ASTM E84 smoke and fire performance

• Superior tear resistance

• UV resistance for outdoor HVAC installations

99.9% Pure Copper

Black Rubber Insulated Pipe

Plastic Cap Protection

Features of Black Rubber Pipe Insulation Tubing

Black rubber pipe insulation provides thermal protection, moisture condensation control, and long-term surface protection for HVAC copper tubing. The insulation material works as both the insulation layer and moisture-proof layer, reducing the need for an additional vapor barrier in many installations.

• Material: black rubber insulation

• Temperature range: -40℃ to 120℃

• Better moisture condensation protection

• Insulation layer and moisture-proof layer in one structure

• Suitable for outdoor and indoor HVACR installations

Insulation Benefits for HVACR Applications

Excellent Heat Preservation

The high-density closed-cell structure provides low thermal conductivity and stable temperature protection, helping the copper refrigerant line maintain proper thermal performance in hot or cold environments.

Eco-Friendly and Corrosion-Resistant Material

The insulation material is designed to reduce environmental pollution, resist mold growth, and protect the copper pipe from corrosion, acid, alkali, and external damage.

Excellent Flame-Retardant Properties

The black rubber insulation contains flame-retardant materials and supports safe HVAC use across a temperature range from -40℃ to 120℃.

Moisture Condensation Control

The insulation layer also works as a moisture-proof layer, helping reduce condensation on copper tubing and protect indoor spaces, walls, ceilings, and equipment areas from water damage.

1/2 in. x 3/4 in. x 82 ft Pre-Insulated Copper Tubing for HVACR Applications

Dabund in-house tested pre-insulated copper pipe and tubing is designed to make HVAC installation simpler and faster, helping contractors save time and labor cost on each project.

Individual pre-insulated rolls are suitable for ductless mini splits, VRF systems, heat pumps, centralized ducted units, and other HVACR installations when the pipe size matches the equipment requirements.

Technical Specifications

Available Pre-Insulated Copper Tubing Sizes

HVAC Line Set Size Guide

Why Choose Dabund 1/2 in. x 3/4 in. x 82 ft Pre-Insulated Copper Tubing?

HVAC Manufacturing Experience Since 2008

Dabund is a manufacturer of pre-insulated copper tubing with years of production and export experience. The company supports HVAC distributors, contractors, wholesalers, and OEM buyers with stable supply and professional service.

Factory-Direct Supply for Global Buyers

Dabund supports factory-direct supply with competitive pricing, regular container shipments, export packaging, and reliable logistics support for different HVAC markets.

OEM and ODM Customization

Custom tube size, insulation thickness, insulation material, insulation printing, packaging, company logo, private label, and project-specific line set combinations are available.

Professional HVACR Product Range

Dabund supplies insulated copper pipe, mini split line set, aluminum pipe, air conditioner installation kit, line set cover, drain hose, and other HVAC parts for complete project sourcing.

Dabund Factory

Dabund produces insulated copper pipe, mini split line set, aluminum pipe, and HVAC parts for global HVAC buyers.

SGS Certificate

Mini split line set insulation can be made of polypropylene or black rubber with UV resistance and compliance with ASTM E84, UL94, ASTM D1056, and ASTM G21.

Exhibition and Global Market Experience

Dabund joins international exhibitions to help customers inspect mini split line sets, pre-insulated copper tubing, and HVAC parts face to face.

FAQ About 1/2 in. x 3/4 in. x 82 ft Pre-Insulated Copper Tubing

What is an HVAC line set?

An HVAC line set is a pair of copper tubes used to connect an air conditioner or heat pump indoor evaporator coil to the outdoor condenser unit. It usually includes a liquid line and a suction line that transport refrigerant through the HVAC system.

What does this 1/2" x 3/4" pre-insulated copper tubing include?

It includes two pre-insulated copper tubes in 1/2" and 3/4" outer diameter sizes. The tubing is supplied as an 82 ft roll and is designed for HVACR refrigerant line installation.

Why is pre-insulated HVAC line set important?

Pre-insulated HVAC line sets help reduce energy loss, prevent condensation, improve HVAC efficiency, protect copper tubing, and reduce installation labor compared with field-wrapped insulation.

Can this pre-insulated copper tubing be used for mini split systems?

Yes. It can be used for ductless mini split air conditioners and heat pumps when the 1/2" x 3/4" tube size matches the equipment manufacturer’s installation requirements.

How do I choose the correct HVAC line set for my system?

Choose the line set according to HVAC unit capacity, required tube diameters, total installation length, refrigerant type, and equipment manufacturer guidelines. Do not choose by length alone; pipe diameter must match the system specifications.

Are HVAC line sets suitable for residential and commercial use?

Yes. HVAC line sets are used in residential and commercial HVAC applications, including air conditioners, heat pumps, refrigeration systems, VRF systems, and mini split installations.

What materials are HVAC line sets made of?

Most HVAC line sets are made from high-quality seamless copper tubing because copper provides excellent thermal conductivity, corrosion resistance, flexibility, and long-term durability.

How long do HVAC line sets last?

When properly installed, protected, and maintained, HVAC line sets can last 20–30 years or longer. Service life depends on installation quality, insulation condition, environment, and system maintenance.

Can HVAC line sets improve energy efficiency?

Yes. Properly sized and insulated HVAC line sets reduce heat transfer loss and condensation problems, helping the HVAC system operate more efficiently.

Can the 82 ft copper tubing be cut to custom length?

Yes. The 82 ft copper tubing can be cut to the required installation length. Proper cutting, deburring, flaring, sealing, vacuuming, and pressure testing are required after cutting.

Can Dabund print my brand on the insulation?

Yes. Dabund can print company name, pipe size, length, logo, and private-label information on the insulation jacket for OEM and ODM orders.

Are you a manufacturer or trading company?

Dabund is a manufacturer of pre-insulated copper tubing, insulated copper pipe, mini split line set, aluminum pipe, and HVAC parts.