Upgrade your HVAC installation projects with the premium-quality 50 ft 1/4" x 1/2" Insulated Copper Pipe from DABUND Official Website. Designed for ductless mini split systems, heat pumps, and refrigeration applications, this pre-insulated copper tubing delivers excellent refrigerant flow, superior thermal insulation, and long-lasting durability for residential and commercial HVAC systems. Supported by ASTM-compliant copper tubing and UV-resistant insulation, it is an ideal solution for professional HVAC contractors and distributors.
Professional 50 ft Copper Line Set for HVAC Installations
This insulated copper pipe includes a 1/4" liquid line and 1/2" suction line configuration, making it suitable for 9,000 BTU to 18,000 BTU mini split air conditioners and heat pump systems.
The 50 ft length offers flexible installation options for projects where indoor and outdoor units require longer refrigerant piping connections.
Ideal for Residential and Commercial HVAC Applications
The insulated copper pipe works perfectly for:
Ductless mini split systems
Heat pump installations
Central air conditioning systems
Refrigeration systems
VRF and VRV systems
Residential HVAC replacement projects
The flexible copper tubing simplifies installation in homes, apartments, offices, and commercial buildings.
99.9% Pure Copper Tube Meets ASTM B280 Standard
Manufactured using 99.9% pure copper, this HVAC copper pipe complies with ASTM B280 and C12200 standards for refrigeration-grade copper tubing. The seamless copper construction improves refrigerant flow efficiency while reducing the risk of leakage.
High Pressure Resistance for R410A & R32 Systems
The copper tubing supports pressure ratings from 2100 PSI to 7000 PSI, making it compatible with modern refrigerants including:
This high-pressure capability ensures reliable HVAC performance under demanding operating conditions.
UV Resistant Insulated Copper Pipe for Maximum Efficiency
The pre-insulated copper tubing uses high-density polyethylene foam insulation designed to minimize thermal loss and improve HVAC energy efficiency.
Three-Layer Insulation Structure
The insulation system includes:
Outer Layer
UV-resistant embossed polyethylene film for anti-aging and wear resistance.
Middle Layer
IXPE foam insulation providing thermal protection, impact absorption, and moisture resistance.
Inner Layer
Closed-cell insulation structure for excellent airtightness and temperature stability.
This three-layer design helps maintain refrigerant temperature while reducing condensation and energy loss.
Flame Retardant & Waterproof Insulation
The insulation material meets multiple international standards including:
ASTM E84
UL94
ASTM D1056
ASTM G21
Working temperature ranges from -40℃ to 120℃, making it suitable for indoor and outdoor HVAC installations.
Flexible Copper Tubing for Easy HVAC Installation
The specially annealed copper tubing offers excellent flexibility for HVAC installers.
Easy to Bend Without Kinking
The soft annealed copper pipe can bend smoothly around corners and tight installation spaces without collapsing or cracking. This improves installation speed and reduces labor costs.
Continuous Copper Line Reduces Leak Risks
Using a long 50 ft copper line minimizes additional fittings and connectors, helping reduce refrigerant leak points and improving overall HVAC system reliability.
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.

Compatible with Mini Split Air Conditioners and Heat Pumps
This 1/4" x 1/2" insulated copper pipe is commonly used for:
The tubing is compatible with many major HVAC brands including:
Daikin
Mitsubishi
Panasonic
Gree
LG
DABUND OEM & Customized HVAC Copper Pipe Solutions
As a professional HVAC&R manufacturer since 2008, DABUND HVAC Factory provides OEM and ODM customization services for global distributors, wholesalers, and contractors.
Customization Services Available
Customization options include:
Custom insulation thickness
White or black insulation
Custom logo printing
Customized packaging
Meter marking printing
Custom copper tube lengths
The insulation can be printed with your company logo, product size, and branding information to support private-label HVAC businesses.
Why Choose DABUND Insulated Copper Pipe
DABUND has extensive experience manufacturing HVAC copper tubing for international markets.
Key Advantages
99.9% pure copper tubing
ASTM B280 compliant
UV-resistant insulation
Strong pressure resistance
Fast global shipping
OEM & ODM support
Competitive wholesale pricing
Strict quality inspection
DABUND products are widely exported to North America, Europe, Southeast Asia, and other global HVAC markets.
Product Specifications of 50 ft 1/4" x 1/2" Insulated Copper Pipe
Technical Specifications
Product Name: 50 ft 1/4" x 1/2" Insulated Copper Pipe
Material: 99.9% Pure Copper
Copper Standard: ASTM B280 & C12200
Length: 50 ft
Insulation Material: UV-resistant polyethylene foam
Working Temperature: -40℃ to 120℃
Pressure Rating: 2100 PSI – 7000 PSI
Application: HVAC & Refrigeration Systems
Color Options: White / Black Insulation

Insulated Copper Pipe Air Conditioning
Size | Length | Insulation Black Rubber | Flame Resistant |
1/4+3/8 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/4+1/2 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/4+5/8 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
3/8+5/8 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
3/8+3/4 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/2+3/4 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
3/8+7/8 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/4 + 3/8 Insulated copper pipe air conditioning used for 0.75TON - 1.0TON mini split air conditioner.
1/4 + 1/2 All 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 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 piping 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 50 ft 1/4" x 1/2" Insulated Copper Pipe Air Conditioning 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 50 ft 1/4" x 1/2" insulated copper pipe used for?
This insulated copper pipe is commonly used for ductless mini split air conditioners, heat pumps, central HVAC systems, and refrigeration equipment. It transports refrigerant between indoor and outdoor HVAC units efficiently.
2.Does the copper tubing meet ASTM standards?
Yes. The copper tubing complies with ASTM B280 and C12200 standards and uses 99.9% pure copper for reliable HVAC performance.
3.Can this insulated copper pipe support R410A refrigerant systems?
Yes. The copper tubing supports high-pressure refrigerants including R410A, R32, and R22 with pressure ratings up to 7000 PSI.
4.What HVAC system size works with 1/4" x 1/2" copper line sets?
This size is commonly used for 9,000 BTU to 18,000 BTU mini split air conditioners and residential heat pump systems.
5.Is the insulation UV resistant and waterproof?
Yes. The insulation uses UV-resistant polyethylene foam with waterproof, flame-retardant, and anti-aging properties suitable for outdoor HVAC installations.
6.What are the advantages of pre-insulated copper tubing?
Pre-insulated copper tubing helps reduce thermal loss, prevent condensation, improve HVAC efficiency, and speed up installation time for HVAC contractors.
7.Can DABUND provide OEM and custom branding services?
Yes. DABUND supports OEM and ODM services including logo printing, customized packaging, insulation color customization, and private-label HVAC copper tubing.
8.Why is 99.9% pure copper important for HVAC systems?
High-purity copper improves thermal conductivity, pressure resistance, corrosion protection, and long-term HVAC system reliability.
9.Can this copper pipe be used for mini split installations?
Absolutely. This insulated copper line set is widely used for ductless mini split systems, heat pumps, and refrigeration applications.
10.How does insulated copper tubing improve HVAC performance?
The insulation minimizes refrigerant temperature loss, reduces condensation buildup, improves cooling efficiency, and helps lower HVAC energy consumption.