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DBJ-003
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DABUND
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Copper
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1M - 50M
Material
Color
Keywords
Application
100 ft 1/4 in. x 1/2 in. Insulated Copper Tube
DABUND 100 ft 1/4 in. x 1/2 in. Insulated Copper Tube provides long-length refrigerant piping for compatible mini split air conditioners, heat pumps, central HVAC systems and refrigeration applications.
The paired copper tubing combines a 1/4 in. liquid line with a 1/2 in. suction line and provides a 100 ft length, approximately 30.5 m, for projects requiring extended refrigerant piping.
Manufactured from 99.9% pure copper with ASTM B280 / C12200 referenced in the source product information, the tubing is supplied with factory-applied insulation to help reduce thermal exchange and surface condensation.
Quick Answer: This 100 ft 1/4 x 1/2 insulated copper tube combines high-purity refrigerant-grade copper with White PE / closed-cell insulation for compatible long-distance mini split and HVAC installations.
100 ft Insulated Copper Tube Video
100 ft 1/4 x 1/2 Copper Tube Specifications
| Product Type | Pre-Insulated HVAC Copper Refrigerant Tubing |
| Tube Size | 1/4 in. + 1/2 in. |
| Liquid Line | 1/4 in. / 6.35 mm |
| Suction Line | 1/2 in. / 12.70 mm |
| Length | 100 ft / approximately 30.5 m |
| Copper Material | 99.9% Pure Copper |
| Copper Standard | ASTM B280 / C12200 |
| Featured Insulation | White PE / high-density closed-cell polyethylene foam |
| Listed Temperature Range | -40°C to 120°C; confirm applicability to the exact insulation configuration |
| Source-Listed Pressure Range | 2100–7000 PSI; allowable pressure depends on tube dimensions, wall thickness and temperature |
| Listed Refrigerants | R410A / R32; final compatibility must follow equipment specifications |
| Applications | Compatible Mini Split / Heat Pump / Central HVAC / Refrigeration Systems |
100 ft Long-Length HVAC Refrigerant Line
The 100 ft / 30.5 m continuous coil provides additional routing flexibility for compatible HVAC installations where indoor and outdoor equipment are separated by a greater distance.
A continuous copper line can reduce unnecessary intermediate connections compared with joining multiple shorter tubing sections, provided the complete installed route remains within the HVAC equipment manufacturer's piping limits.
Typical applications may include larger residential properties, commercial HVAC projects, multi-story buildings and compatible heat-pump or refrigeration installations.
1/4 in. Liquid Line and 1/2 in. Suction Line
This tubing set combines a 1/4 in. liquid refrigerant line with a 1/2 in. suction return line.
Buyers should verify that the specific mini split, heat-pump or HVAC equipment requires these exact copper tube diameters before ordering.
Required refrigerant-line sizes vary between HVAC manufacturers and individual equipment models, so the manufacturer's technical documentation should always control final selection.
ASTM B280 C12200 Copper Refrigerant Tubing
The source product information specifies 99.9% pure copper and references ASTM B280 / C12200 for the refrigerant tubing.
Copper provides thermal conductivity, corrosion resistance and installation flexibility for compatible air-conditioning and refrigeration piping applications.
Appropriate HVAC tube-bending tools and suitable bend radii should be used to reduce the risk of kinking, flattening or restricting refrigerant flow.
Pressure Capability for R410A and R32 Applications
The source page lists a pressure range of 2100–7000 PSI and references R410A and R32 refrigerant applications.
Actual allowable working pressure depends on copper tube diameter, wall thickness, operating temperature and exact product configuration. Confirm the applicable tubing specification before use with a particular HVAC or refrigeration system.
Factory-Applied White PE Insulation
The source page identifies high-density closed-cell polyethylene foam insulation and the product images and family table prominently show White PE insulated tubing.
Factory-applied insulation helps reduce unwanted thermal exchange and surface condensation around cold refrigerant tubing.
Closed-Cell PE Foam Structure
The closed-cell insulation structure helps limit moisture penetration while providing thermal protection around the copper refrigerant lines.
UV-Resistant Outer Surface
UV-resistant insulation is referenced on the source page for applications where the tubing may be exposed to outdoor installation conditions.
Copper Tube and Insulation Video

99.9% Pure Copper

White PE Insulated Pipe

Protective Plastic Cap
White PE Embossed Insulation

Insulation Production and Structure

Insulation Pipe Production

Insulation Pipe Warehouse

Inner Layer Insulated Pipe
Benefits of Pre-Insulated Copper Tubing
Reduced Thermal Exchange
Factory-applied insulation helps limit heat transfer between refrigerant piping and the surrounding environment.
Condensation Protection
Properly specified insulation helps reduce surface condensation around cold refrigerant tubing.
Faster Field Installation
Factory-applied insulation reduces additional field wrapping and insulation work.
Copper Corrosion Resistance
Copper refrigerant tubing provides corrosion resistance and mechanical flexibility for compatible HVAC piping applications.
Compatible HVAC Applications
Compatible ductless mini split air conditioners
Heat-pump systems
Central air-conditioning systems requiring this pipe size
Residential HVAC installations
Commercial HVAC applications
Compatible refrigeration systems
Extended refrigerant piping installations
Final compatibility must be confirmed from the HVAC equipment manufacturer's required liquid-line diameter, suction-line diameter, refrigerant and permitted piping length.
General 12,000–18,000 BTU Capacity Reference
The wider DABUND product family lists the 1/4 in. + 1/2 in. tubing combination as a general reference for some 1.5–2.0 ton mini split systems.
The same product-family information references approximately 12,000–18,000 BTU for this line-set size.
These values are general references only. Final line-set sizing must follow the HVAC equipment manufacturer's exact technical requirements.
Important Checks for a 100 ft Refrigerant Run
Verify Maximum Permitted Piping Length
A physical 100 ft coil does not mean every HVAC system permits a 100 ft installed refrigerant run. Confirm the equipment manufacturer's maximum piping length before installation.
Confirm Exact Pipe Sizes
Verify that the equipment specifically requires a 1/4 in. liquid line and 1/2 in. suction line.
Check Maximum Elevation Difference
For multi-story installations, confirm the maximum permitted vertical separation between indoor and outdoor equipment.
Check Additional Refrigerant Charge
A 100 ft refrigerant run may require additional refrigerant beyond the equipment's factory charge. Follow the manufacturer's charging instructions for the actual installed piping length.
Check Equivalent Piping Length
Bends, fittings and elevation changes can affect equivalent piping length. Follow the equipment manufacturer's engineering requirements rather than relying only on physical coil length.
Provide Proper Pipe Support
Use suitable HVAC-rated supports, clips or straps to reduce sagging, vibration and mechanical stress along the extended piping route.
Installation Guidelines
Plan the Complete Refrigerant Route
Measure and plan the complete piping route before uncoiling or cutting the copper tubing.
Avoid Sharp Bends and Kinks
Use suitable tube-bending tools and appropriate bend radii to reduce the risk of tube deformation or restricted refrigerant flow.
Protect the Insulation
Avoid crushing, cutting or leaving unnecessary gaps in the insulation around bends, supports and wall penetrations.
Keep Copper Tube Ends Protected
Keep open copper tube ends capped or sealed during storage and installation to reduce moisture and contamination entering the refrigerant system.
Pressure Test and Evacuate Before Startup
Follow the HVAC equipment manufacturer's pressure-testing, evacuation, refrigerant charging and commissioning procedures before system startup.
OEM and Customization Services
Custom production lengths from approximately 1 m to 50 m or more
Custom insulation thickness
Custom insulation material options
Logo printing on insulation
Bulk packaging for distributors
OEM and ODM configurations
Custom configurations are intended for HVAC distributors, wholesalers, contractors and private-label buyers.
White PE Insulated Copper Tube

Available Insulated Copper Tube Sizes
| Size | Available Lengths | White PE Insulation | Listed Flame-Resistance Options |
|---|---|---|---|
| 1/4 + 3/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4 + 1/2 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4 + 5/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 5/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 3/4 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/2 + 3/4 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8 + 7/8 in. | 15 m / 20 m / 25 m / 30 m / 50 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
Length Note: This specific product is 100 ft, approximately 30.48 m. The wider product-family table lists 30 m as a standard metric production length, so buyers should specify the exact finished 100 ft configuration when ordering.
General Line Set Size and Capacity Reference
| Line Set Size | General Ton Reference | General BTU Reference |
|---|---|---|
| 1/4 + 3/8 in. | 0.75–1.0 Ton | 9,000–12,000 BTU |
| 1/4 + 1/2 in. | 1.5–2.0 Ton | 12,000–18,000 BTU |
| 1/4 + 5/8 in. | 2.0–2.5 Ton | 24,000–30,000 BTU |
| 3/8 + 5/8 in. | 3.0–4.0 Ton | 36,000–48,000 BTU |
| 3/8 + 3/4 in. | 4.5–6.0 Ton | 54,000–72,000 BTU |
| 3/8 + 7/8 in. | 6.0–8.0 Ton | 72,000–96,000 BTU |
These capacity values are general product-family references only. Final refrigerant-line sizing must follow the HVAC equipment manufacturer's exact requirements.
DABUND Insulated Copper Tube Manufacturing
DABUND manufactures insulated copper pipe, mini split line sets and related HVAC components for distributors, contractors and project buyers.

Insulation Test Documentation
The source certificate section states that applicable Polypropylene or Black Rubber insulation configurations reference ASTM E84, UL94, ASTM D1056 and ASTM G21.
Because the featured product configuration on this page is White PE / polyethylene foam, buyers requiring compliance documentation should confirm the exact insulation material, thickness and corresponding test report for the ordered SKU.

International HVAC Exhibitions
DABUND participates in international HVAC exhibitions where professional buyers can review insulated copper tubing, mini split line sets and related HVAC products.

Frequently Asked Questions
What is a 100 ft 1/4 x 1/2 insulated copper tube used for?
It is used as refrigerant piping between compatible indoor and outdoor HVAC equipment requiring a 1/4 in. liquid line and 1/2 in. suction line.
How long is this insulated copper tube?
The product is 100 ft long, approximately 30.48 m.
What size HVAC system can use a 1/4 x 1/2 line set?
The wider DABUND product family lists 1/4 x 1/2 as a general reference for some 1.5–2.0 ton or 12,000–18,000 BTU systems. Final tubing selection must follow the equipment manufacturer's exact pipe-size requirements.
Can every compatible HVAC system use a 100 ft refrigerant run?
No. Check the equipment manufacturer's maximum piping length, maximum elevation difference and refrigerant charging requirements before installation.
Does a 100 ft refrigerant run require additional refrigerant?
Additional refrigerant may be required depending on the equipment's factory charge and installed piping length. Follow the HVAC equipment manufacturer's charging instructions.
What copper material is used?
The source product information specifies 99.9% pure copper and references ASTM B280 / C12200.
What insulation is used?
The source product description identifies UV-resistant polyethylene foam, while the product images and wider family table show White PE insulation.
What insulation thicknesses are available?
The wider White PE product family lists 8 mm, 9 mm, 10 mm, 13 mm, 19 mm and 25.4 mm insulation thickness options.
What is the listed insulation temperature range?
The source page lists approximately -40°C to 120°C. Confirm the applicable rating for the exact insulation configuration ordered.
Is this tubing compatible with R410A and R32?
R410A and R32 are referenced in the source product information. Final compatibility must be confirmed against the HVAC equipment manufacturer's refrigerant, pipe-size and operating-pressure requirements.
What is the pressure rating?
The source page lists a pressure range of 2100–7000 PSI. Actual allowable pressure depends on tube diameter, wall thickness, operating temperature and exact tubing configuration.
Can this insulated copper tube be used outdoors?
UV-resistant insulation is referenced on the source page. Final outdoor suitability should be confirmed for the exact insulation material and environmental exposure conditions.
Can the 100 ft copper tubing be shortened?
Yes. The copper tubing can be shortened using appropriate HVAC cutting, deburring and connection procedures while following the equipment manufacturer's requirements.
Can DABUND customize the insulated copper tube?
Yes. The source page lists custom lengths, insulation thickness and material options, logo printing and bulk packaging for distributor and OEM orders.
Is professional HVAC installation recommended?
Yes. Refrigerant piping should be installed, leak-tested, evacuated, charged and commissioned according to the equipment manufacturer's instructions and applicable local requirements.

