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DBJ-003
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DABUND
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Copper
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1M - 50M
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1/4,3/8,1/2,5/8,3/4,7/8,1,1-1/8
Material
Color
Keywords
Application
Insulation Thickness
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82 ft 1/2 in. x 3/4 in. Pre-Insulated Copper Line Set
DABUND 82 ft 1/2 in. x 3/4 in. Pre-Insulated Copper Line Set is designed for compatible mini split, ductless AC, heat-pump and HVAC refrigerant piping installations requiring an extended line run.
The twin-tube configuration includes a 1/2 in. liquid line and 3/4 in. suction line. The 82 ft length equals approximately 24.99 m, providing additional routing flexibility between compatible indoor and outdoor HVAC equipment.
The refrigerant tubing is manufactured from 99.9% pure copper and is supplied with factory-applied insulation. The featured configuration uses Black Rubber insulation to help reduce thermal transfer, control condensation and protect the refrigerant tubing during installation and operation.
Quick Answer: This 82 ft 1/2 x 3/4 insulated copper line set provides a continuous long-run refrigerant piping solution for compatible HVAC systems that specifically require a 1/2 in. liquid line and 3/4 in. suction line.
82 ft 1/2 x 3/4 Copper Line Set Specifications
| Product Type | Pre-Insulated Copper Refrigerant Line Set |
| Line Set Size | 1/2 in. x 3/4 in. |
| Liquid Line | 1/2 in. |
| Suction Line | 3/4 in. |
| Length | 82 ft / 24.99 m |
| Copper Material | 99.9% Pure Copper |
| Insulation | Factory-Applied, UV-Resistant |
| Featured Insulation Material | Black Rubber |
| Listed Insulation Temperature Range | -40°C to 120°C |
| Applications | Compatible mini split, ductless AC, heat-pump and HVAC refrigerant lines |
| Listed Refrigerants | R410A, R32 and similar compatible HVAC refrigerants |
82 ft Insulated Copper Tube Video
Extended 82 ft Refrigerant Line for Long HVAC Runs
The 82 ft continuous refrigerant line provides additional routing flexibility where indoor and outdoor HVAC equipment are separated by a moderate or extended distance.
This length can be useful for larger homes, multi-story buildings, rooftop installations and other layouts where shorter line sets cannot complete the required route.
A continuous coil can also reduce intermediate connections compared with joining several shorter refrigerant-line sections, provided the complete installation remains within the equipment manufacturer's permitted piping length.
1/2 in. Liquid Line and 3/4 in. Suction Line
This line set combines a 1/2 in. liquid refrigerant tube with a 3/4 in. suction return tube.
Both tube dimensions must match the HVAC equipment manufacturer's specified refrigerant piping sizes. Line-set dimensions should not be selected based only on nominal system capacity.
99.9% Pure Copper Refrigerant Tubing
The refrigerant tubing is manufactured from 99.9% pure copper for compatible HVAC refrigerant piping applications.
Copper provides thermal conductivity, corrosion resistance and the flexibility required for professional refrigerant-line routing.
Factory-Applied Black Rubber Insulation
The featured product configuration uses Black Rubber insulation around the copper refrigerant tubing.
Factory-applied insulation helps reduce unwanted thermal exchange and surface condensation while reducing additional insulation work during field installation.
The source product information lists the Black Rubber insulation for a temperature range of -40°C to 120°C and describes the material as both an insulation layer and moisture-resistant layer.
Copper Line Set and Insulation Video
99.9% Pure Copper
Black Rubber Insulated Pipe
Protective Plastic Cap
Black Rubber Insulation Details
Black Rubber insulation provides thermal protection and helps manage moisture around the refrigerant tubing.
The listed temperature range for this insulation configuration is -40°C to 120°C.
The insulation layer helps reduce condensation on cold refrigerant lines and provides a consistent factory-applied protective covering.
Benefits of Pre-Insulated Copper Tubing
Reduced Field Insulation Work
Factory-applied insulation reduces additional on-site insulation wrapping and provides a more consistent finished refrigerant line.
Condensation Control
Proper insulation helps reduce surface condensation on cold refrigerant tubing and limits moisture exposure to surrounding building surfaces.
Thermal Protection
Insulation helps reduce unwanted heat transfer between the refrigerant piping and surrounding environment during system operation.
Long-Run Installation Flexibility
The 82 ft continuous length provides additional routing flexibility for compatible projects while reducing the need for intermediate piping connections.
82 ft Black Rubber Insulated Copper Line Set
The featured Black Rubber configuration combines insulated copper refrigerant tubing with an 82 ft continuous coil for compatible extended HVAC installations.
Available Insulated Copper Tube Sizes
The following table shows the size, production-length and Black Rubber insulation options listed for the wider DABUND insulated copper tube family. The current 82 ft product is approximately 24.99 m, corresponding closely to the listed 25 m family length.
| Copper Tube Size | Available Lengths | Black Rubber 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 |
General Line Set Size and Capacity Reference
The following capacity ranges are general references from the wider DABUND insulated copper pipe family. Final refrigerant-line sizing must follow the HVAC equipment manufacturer's exact piping requirements.
| 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 |
The source product family does not provide a specific tonnage or BTU reference for the 1/2 x 3/4 combination. For this 82 ft product, confirm compatibility directly from the HVAC equipment manufacturer's required liquid-line and suction-line dimensions.
Compatible HVAC Applications
Compatible mini split air conditioners
Ductless heat-pump systems
Residential HVAC installations
Light commercial HVAC installations
Multi-story and rooftop equipment installations
Compatible extended refrigerant piping applications
Refrigerant Compatibility
The source product information lists R410A and R32 among the common refrigerants used with compatible HVAC systems.
Final refrigerant compatibility, allowable working pressure, required tube sizes and connection requirements must be verified against the specific equipment manufacturer's technical specifications.
Important Considerations for an 82 ft Line Set
Verify the Maximum Permitted Line Length
Confirm that the HVAC equipment manufacturer permits a total refrigerant piping length of at least 82 ft.
Check the Maximum Elevation Difference
For multi-story and rooftop installations, confirm the maximum permitted vertical difference between the indoor and outdoor equipment.
Check Additional Refrigerant Requirements
Extended refrigerant piping may require an additional refrigerant charge depending on the equipment and total installed line length. Follow the equipment manufacturer's charging instructions.
Confirm the Exact Tube Sizes
An 82 ft line length does not determine the required tube diameter. Confirm that the equipment specifically requires a 1/2 in. liquid line and 3/4 in. suction line.
Support Long Refrigerant Runs
Use suitable HVAC line clamps, straps or support brackets along extended piping routes to reduce sagging, vibration and mechanical stress on the copper tubing and insulation.
Installation Guidelines
Measure the Complete Line Route
Measure and plan the complete route between the indoor and outdoor units before installation to confirm that the 82 ft length is appropriate.
Avoid Sharp Bends and Kinks
Route the copper tubing with suitable bend radii to reduce the risk of kinking or damaging the refrigerant line.
Protect Insulation at Wall Penetrations
Use suitable wall sleeves or protective grommets where the insulated tubing passes through walls or other structural penetrations to reduce abrasion.
Maintain Insulation Integrity
Avoid cutting, crushing or excessively compressing the insulation because this can reduce thermal and condensation-control performance.
Follow the Equipment Manufacturer's Instructions
Refrigerant piping, flare or connection preparation, evacuation, charging and system commissioning should follow the HVAC equipment manufacturer's installation requirements.
DABUND Insulated Copper Tube Factory
DABUND manufactures insulated copper pipe, mini split line sets, aluminum pipe and related HVAC installation products for distributors and project customers.
Insulation Test Documentation
The source product information references ASTM E84, UL94, ASTM D1056 and ASTM G21 for applicable Polypropylene or Black Rubber insulation configurations.
Buyers requiring specific project certification should confirm the selected insulation material, thickness and corresponding test documentation before ordering.
International HVAC Exhibitions
DABUND participates in international HVAC exhibitions where distributors and professional buyers can review insulated copper tubing, mini split line sets and related HVAC products.
Frequently Asked Questions
What does 1/2 in. x 3/4 in. mean?
It refers to the listed outside diameters of the two refrigerant tubes: 1/2 in. for the liquid line and 3/4 in. for the suction return line.
How long is this insulated copper line set?
The line set is 82 ft long, equivalent to approximately 24.99 m.
What copper material is used?
The source product information lists 99.9% pure copper tubing.
What insulation material is shown?
The featured product configuration uses Black Rubber insulation.
What is the listed temperature range of the Black Rubber insulation?
The source product information lists a temperature range of -40°C to 120°C.
What insulation thicknesses are available?
Listed Black Rubber insulation thicknesses include 8 mm, 9 mm, 10 mm, 13 mm, 19 mm and 25.4 mm.
What size HVAC system can use a 1/2 x 3/4 line set?
The current source does not provide a specific tonnage or BTU mapping for the 1/2 x 3/4 combination. Final selection should be based on the equipment manufacturer's required liquid-line and suction-line dimensions.
Can every HVAC system use an 82 ft refrigerant line?
No. Confirm the equipment manufacturer's maximum permitted piping length, allowable elevation difference, refrigerant-line dimensions and charging requirements before installation.
Does an 82 ft line set require additional refrigerant?
Additional refrigerant may be required depending on the HVAC equipment and total installed piping length. Follow the equipment manufacturer's charging instructions.
Is this line set listed for R410A and R32?
Yes. The source product information lists R410A and R32 among the commonly compatible refrigerants. Final suitability should be verified against the specific HVAC equipment requirements.
Can this insulated copper tubing be installed outdoors?
The source product information describes the factory-applied insulation as UV-resistant and suitable for compatible outdoor refrigerant-line applications.
Is additional field insulation required?
Factory-applied insulation reduces the need for additional field wrapping, although local codes, installation conditions or specific project requirements may require extra protection.
What other insulated copper tube sizes are available?
Listed combinations include 1/4 + 3/8, 1/4 + 1/2, 1/4 + 5/8, 3/8 + 5/8, 3/8 + 3/4, 1/2 + 3/4 and 3/8 + 7/8 in.
What production lengths are available?
The wider product family lists 15 m, 20 m, 25 m, 30 m and 50 m production lengths.
Can DABUND provide samples?
Yes. The source product information states that samples are available and the buyer is responsible for the express freight cost.
What payment terms are available?
Available payment methods include T/T, L/C at sight and credit card.
What delivery terms are available?
Available delivery terms include EXW, FOB, CFR and CIF.
Does DABUND support OEM and ODM?
Yes. OEM and ODM services, including logo customization, are available for suitable orders.
What is the typical delivery time?
The listed typical delivery time is approximately 15–20 days, depending on order quantity and production requirements.
