1/2 in. x 3/4 in. x 50 ft. Pre-Insulated Copper Pipe | HVAC Refrigeration Line Set

1/2" x 3/4" x 50 ft Pre-Insulated Copper Pipe

The 1/2" x 3/4" x 50 ft pre-insulated copper pipe is a high-performance HVAC refrigeration line set designed for mini split air conditioners, heat pumps, ductless HVAC systems and air conditioning refrigeration applications.

This black rubber pre-insulated copper pipe uses seamless copper tubing that meets ASTM B280 and C12200 standards. It helps maintain stable refrigerant flow, reduce heat transfer, prevent condensation and improve long-term HVAC system reliability.

Dabund Pipe manufactures pre-insulated copper pipe, mini split line sets, HVAC line sets and HVAC installation parts for contractors, distributors, importers, wholesalers and OEM private-label buyers.

Product Overview: HVAC Refrigeration Line Set for Mini Split Systems

This 50 ft pre-insulated copper pipe is designed to connect indoor and outdoor HVAC units in compatible split AC and refrigeration systems. The 1/2" and 3/4" copper line sizes support larger mini split, heat pump and HVACR applications where stable refrigerant flow is required.

The factory-applied black rubber insulation reduces field insulation work, protects the copper pipe from moisture and helps maintain refrigerant temperature during cooling and heating operation.

Key Features of 1/2" x 3/4" x 50 ft Pre-Insulated Copper Pipe

• 50 ft pre-insulated copper pipe for HVAC refrigeration line set installation.

• 1/2" and 3/4" copper tubing sizes for compatible split AC and heat pump systems.

• Seamless copper meets ASTM B280 and C12200 standards.

• 99.9% pure copper supports corrosion resistance and stable refrigerant flow.

• Black rubber insulation helps reduce heat transfer and condensation.

• Insulation temperature range supports -40℃ to 120℃ HVAC applications.

• Pressure rating options from 2100 PSI to 7000 PSI for demanding refrigerant systems.

• Suitable for ductless mini split, heat pump, refrigeration and centralized ducted systems.

• OEM printing for company logo, size, length and meter marks is available.

Technical Specifications

High-Quality Copper Construction

99.9% Pure Seamless Copper

The copper tubing is manufactured from 99.9% pure seamless copper to support excellent thermal conductivity, corrosion resistance and consistent refrigerant flow.

ASTM B280 and C12200 Standards

ASTM B280 and C12200 copper tubing is designed for HVAC and refrigeration line applications, helping installers meet professional requirements for refrigerant transport.

High Pressure Rating for Modern HVAC Systems

Pressure rating options from 2100 PSI to 7000 PSI support demanding HVAC refrigerant systems, including applications using R410A and R32 when installed according to system specifications.

Pre-Insulated for Thermal Efficiency

The copper pipe comes with factory-applied insulation to help maintain refrigerant temperature, reduce energy loss and prevent surface condensation. This reduces installation labor compared with field-applied insulation.

UV-Resistant Insulation Jacket

The insulation jacket is designed for indoor and outdoor HVAC line runs, helping protect the refrigerant line from sunlight, weather exposure and installation wear.

Moisture and Condensation Control

Closed-cell insulation helps reduce water vapor transmission and condensation, protecting walls, ceilings, building materials and copper tubing from moisture-related damage.

OEM-Ready Insulation Printing

Insulation can be printed with company name, product size, meter marks and brand information for HVAC distributors, wholesalers and private-label customers.

Application and Use Cases

This 1/2" x 3/4" x 50 ft pre-insulated copper pipe is suitable for residential and commercial HVAC and refrigeration applications that require reliable insulated refrigerant lines.

• Ductless mini split air conditioner installations.

• Heat pump refrigerant line connections.

• Central air conditioning and ducted HVAC systems.

• Refrigeration line set applications.

• Residential and light commercial HVAC systems.

• Replacement and retrofit refrigerant line projects.

• HVAC contractor, installer and distributor inventory.

The final line size and maximum line length should always follow the HVAC equipment manufacturer’s installation manual and local code requirements.

99.9% Pure Copper

Black Rubber Insulated Pipe

Plastic Cap Protection

Black Rubber Pipe Insulation Features

• Material: black rubber pipe insulation.

• Temperature range from -40℃ to 120℃.

• Closed-cell structure helps reduce condensation.

• Insulation layer also works as a moisture-proof layer.

• Reduces heat gain and heat loss for improved HVAC efficiency.

• Protects copper pipe from abrasion, moisture and environmental exposure.

Benefits of Using Pre-Insulated Copper Pipe in HVAC Systems

Excellent Heat Preservation

The high-density closed-cell insulation has low thermal conductivity and helps maintain stable refrigerant temperature along the copper line.

Condensation Prevention

Pre-insulated tubing helps prevent pipe sweating and water dripping, reducing the risk of stains, mold growth and water damage.

Faster Installation

Factory-insulated copper pipe saves installation time and reduces labor cost because additional insulation wrapping is not required in most standard HVAC line runs.

Long Service Life

The insulation helps protect copper tubing from moisture, mechanical contact, outdoor exposure and installation wear, improving long-term system reliability.

1/2" x 3/4" x 50 ft Pre-Insulated Copper Pipe for HVACR Wholesalers

Dabund Pipe in-house tested pre-insulated copper pipe and tubing is designed to make HVAC installation simple and quick, helping contractors save time and reduce cost on each job.

For distributors, importers and private-label HVAC brands, Dabund supports custom pipe sizes, insulation thickness, logo printing, meter marking and export packaging.

Pre-Insulated Copper Pipe Size Options

Recommended Applications by AC Capacity

The 1/2" x 3/4" pre-insulated copper pipe is commonly used for larger split AC, heat pump and ductless HVAC systems. Final sizing should always follow the HVAC equipment manufacturer’s installation manual.

About Dabund and Quality Assurance

HVAC Parts Manufacturer Since 2008

Dabund has produced premium HVAC components since 2008, including pre-insulated copper pipe, mini split line sets, aluminum pipe and HVAC installation parts.

Factory Testing and Export Support

Each pre-insulated copper pipe is produced with quality control for HVAC installation reliability, helping installers and distributors reduce service callbacks and improve project consistency.

OEM and Private-Label Options

Dabund supports custom lengths, insulation thickness, insulation color, printing, size marking, meter marking and export packaging for wholesale and private-label orders.

Dabund Factory

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

SGS Certificate

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

Exhibition

Dabund joins HVAC exhibitions worldwide to present mini split line set and pre-insulated copper pipe products to customers face to face.

FAQ

What is a pre-insulated copper pipe?

A pre-insulated copper pipe is a copper tube that comes factory-wrapped with thermal insulation. It is used in HVAC and refrigeration systems to reduce heat transfer, prevent condensation and protect refrigerant lines.

What is 1/2" x 3/4" x 50 ft pre-insulated copper pipe used for?

It is used for mini split air conditioners, heat pumps, split AC systems, refrigeration lines and HVACR installations that require insulated 1/2" and 3/4" copper refrigerant tubing.

What are the advantages of pre-insulated copper pipes?

They improve energy efficiency, reduce condensation, shorten installation time, protect copper tubing and provide a cleaner installation finish compared with non-insulated copper tubes.

What insulation material is used on pre-insulated copper pipes?

Common insulation materials include closed-cell polyethylene foam, polypropylene insulation and black rubber foam insulation. Dabund can provide different materials based on project and market requirements.

Are pre-insulated copper pipes suitable for mini split AC systems?

Yes. Pre-insulated copper pipes are widely used for mini split air conditioners and ductless HVAC systems when the pipe size matches the equipment requirements.

Can pre-insulated copper pipes be used outdoors?

Yes. UV-resistant insulation supports outdoor installation. In harsh environments, additional protection such as a line set cover may be recommended.

Do pre-insulated copper pipes prevent condensation?

Yes. Closed-cell insulation helps keep the pipe surface temperature above the dew point, reducing condensation, dripping, mold risk and water damage.

Are pre-insulated copper pipes compatible with R410A and R32?

Yes. They are compatible with common HVAC refrigerants such as R410A and R32 when the copper pipe meets the system pressure requirements and is installed correctly.

Can this copper pipe be customized?

Yes. Dabund can customize pipe diameter, length, insulation thickness, insulation material, printed logo, meter marks and OEM packaging.

Why choose pre-insulated copper pipe instead of non-insulated copper tube?

Pre-insulated copper pipe improves thermal protection, reduces installation errors, prevents condensation and saves labor compared with non-insulated copper tube that requires field insulation.

Are you a trading company or manufacturer?

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

Can I get a free sample?

Yes. Dabund can provide qualified customers with free samples. Express cost may need to be covered by the buyer. You can request samples through the free sample page.

Can I print my logo?

Yes. Dabund accepts OEM and ODM orders, including logo printing, size printing, meter marking and customized packaging.

What payment terms are available?

Payment terms may include T/T, L/C at sight, credit card and other agreed payment methods depending on order details.

What delivery terms can you offer?

Dabund can offer common international trade terms such as EXW, FOB, CFR and CIF.

How long is your delivery time?

Normal delivery time is usually 15 to 20 days. For urgent orders, production and shipment can be arranged according to factory schedule.