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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
35 ft 3/8 in. x 5/8 in. Insulated Copper Pipe
DABUND 35 ft 3/8 in. x 5/8 in. Insulated Copper Pipe provides a pre-insulated refrigerant piping solution for compatible mini split air conditioners, split AC systems, heat pumps and refrigeration applications.
The paired refrigerant tubing combines a 3/8 in. liquid line with a 5/8 in. suction line and provides a 35 ft length, approximately 10.7 m.
Manufactured from 99.9% pure copper tubing, the line set is supplied with factory-applied insulation and pre-flared ends with flare nuts to reduce field preparation during compatible HVAC installation.
Quick Answer: This 35 ft 3/8 x 5/8 insulated copper pipe combines high-purity copper tubing, White PE insulation and pre-flared connections for compatible mini split, split AC and heat-pump installations.
35 ft Insulated Copper Pipe Video
35 ft 3/8 x 5/8 Copper Pipe Specifications
| Product Type | Pre-Insulated Copper HVAC Refrigerant Line Set |
| Pipe Size | 3/8 in. x 5/8 in. |
| Liquid Line | 3/8 in. / approximately 9.52 mm |
| Suction Line | 5/8 in. / approximately 15.88 mm |
| Length | 35 ft / approximately 10.7 m |
| Copper Material | 99.9% Pure Copper |
| Copper Standard | ASTM B280 / C12200 as listed in source product information |
| Tube Ends | Pre-Flared with Flare Nuts |
| Featured Insulation | White PE Multi-Layer Insulation |
| Insulation Structure | Embossed PE Outer Layer / IXPE Foam / Closed-Cell Inner Structure |
| Listed Temperature Range | -40°C to 120°C |
| Applications | Compatible Mini Split, Split AC, Heat Pump, Refrigeration and HVAC Systems |
3/8 in. Liquid Line and 5/8 in. Suction Line
The paired refrigerant tubing uses a 3/8 in. copper liquid line and a 5/8 in. copper suction return line.
Before ordering or installation, verify that the specific HVAC equipment requires these exact liquid-line and suction-line diameters.
Refrigerant-line sizing should not be determined only by nominal tonnage or BTU capacity because required pipe dimensions can vary between HVAC manufacturers and equipment models.
35 ft Length for Mini Split and HVAC Installations
The 35 ft length provides additional routing flexibility where compatible indoor and outdoor HVAC equipment cannot be positioned immediately adjacent to each other.
It can support compatible residential mini split installations, split air-conditioning systems, heat pumps, replacement projects and light commercial HVAC applications.
Before installation, confirm the equipment manufacturer's maximum permitted refrigerant piping length, maximum elevation difference and any additional refrigerant charging requirements.
ASTM B280 C12200 Copper Refrigerant Tubing
The source product information states that the copper tubing uses high-purity copper meeting ASTM B280 and C12200 requirements.
Copper provides the thermal conductivity, corrosion resistance and flexibility required for routing compatible HVAC refrigerant lines.
Proper tube-bending methods and suitable bend radii should be used to reduce the risk of kinking, flattening or restricting refrigerant flow.
Pre-Flared Ends with Flare Nuts
The source product information specifies pre-flared ends with flare nuts, helping reduce field tube-end preparation during compatible HVAC installation.
Installers should inspect the flare surfaces before connection and follow the HVAC equipment manufacturer's specified tightening procedure and torque requirements.
Multi-Layer White PE Insulation
The featured product configuration uses a multi-layer White PE insulation system around the copper refrigerant tubing.
Embossed PE Outer Layer
The source product information describes an outer UV-resistant embossed PE film intended to protect the insulation from weather exposure and abrasion.
IXPE Foam Middle Layer
The middle insulation layer is described as IXPE foam, providing thermal insulation and cushioning around the copper refrigerant tubing.
Closed-Cell Inner Structure
The inner insulation structure is described as closed-cell material designed to limit moisture penetration and reduce condensation around cold refrigerant piping.
Copper Pipe and Insulation Video
99.9% Pure Copper
White PE Insulated Pipe
Protective Plastic Cap
White PE Embossed Insulated Pipe
The embossed White PE outer layer helps protect the underlying insulation while providing a finished exterior surface for compatible HVAC refrigerant piping applications.
Insulation Production and Structure
Insulation Pipe Production
Insulation Pipe Warehouse
Inner Layer Insulated Pipe
Benefits of the 35 ft Insulated Copper Pipe
Factory-Insulated Construction
Factory-applied insulation reduces the need for separate field insulation work and provides continuous coverage along the copper refrigerant tubing.
Reduced Thermal Exchange
The insulation structure helps limit unwanted heat gain or loss between the refrigerant tubing and the surrounding environment.
Condensation Control
Closed-cell insulation helps reduce condensation on cold refrigerant tubing and limits moisture penetration into the insulation structure.
Reduced Field Tube Preparation
Pre-flared ends with flare nuts help reduce onsite preparation where the factory connection dimensions match the selected HVAC equipment.
Indoor and Outdoor Installation
The source product information describes UV-resistant and moisture-resistant insulation materials for indoor and outdoor HVAC applications. Final suitability should be confirmed for the selected configuration and exposure conditions.
Compatible HVAC Applications
Compatible mini split air conditioner systems
Split air-conditioning units
Heat-pump installations
Compatible refrigeration equipment
Residential HVAC systems
Light commercial HVAC projects
Replacement and retrofit refrigerant-line installations
Final compatibility should be confirmed from the HVAC equipment manufacturer's required liquid-line size, suction-line size, permitted piping length, refrigerant and pressure requirements.
Refrigerant Compatibility
The source product information lists R410A, R32 and R22 as compatible refrigerants when the copper tubing is used within the proper system specifications.
Refrigerant compatibility should not be determined by refrigerant name alone. Confirm tubing dimensions, wall thickness, allowable pressure and the equipment manufacturer's requirements before installation.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Insulated Copper Pipe |
| Pipe Size | 3/8 in. + 5/8 in. |
| Length | 35 ft / approximately 10.7 m |
| Copper Material | 99.9% Pure Copper |
| Insulation Type | Source lists PE Foam / Rubber; featured page configuration shows White PE |
| Listed Temperature Range | -40°C to 120°C |
| Copper Standard | ASTM B280 / C12200 |
| Insulation Test References | UL94 / ASTM E84 listed in source; confirm applicability to the ordered insulation configuration |
| Application | HVAC & Air Conditioning |
Important Considerations for a 35 ft Refrigerant Run
Confirm the Exact Pipe Sizes
Verify that the selected HVAC equipment specifically requires a 3/8 in. liquid line and 5/8 in. suction line.
Verify Maximum Permitted Piping Length
Confirm that the HVAC equipment manufacturer permits at least the required 35 ft refrigerant piping route.
Check Elevation Difference
If the indoor and outdoor units are installed at different heights, verify the equipment manufacturer's maximum allowable vertical separation.
Check Refrigerant Charge Requirements
Additional refrigerant may be required depending on the equipment's factory charge and total installed piping length. Follow the equipment manufacturer's charging instructions.
Installation Guidelines
Measure the Refrigerant Route
Measure the complete route between indoor and outdoor HVAC equipment before installation.
Inspect the Pre-Flared Ends
Inspect each factory-prepared flare and flare nut before making the refrigerant connection.
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.
Maintain Continuous Insulation Coverage
Avoid cutting, crushing or leaving unnecessary gaps in the insulation, especially at bends, supports and wall penetrations.
Follow Correct Flaring and Torque Procedures
If the tubing is shortened, use proper HVAC cutting, deburring and flaring tools. Tighten connections according to the HVAC equipment manufacturer's specified torque requirements.
Pressure Test and Evacuate Before Startup
Follow the HVAC equipment manufacturer's approved pressure-testing, evacuation, refrigerant charging and commissioning procedures before system startup.
Available Insulated Copper Pipe Sizes
| Pipe 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: The wider family table lists 15 m, 20 m, 25 m, 30 m and 50 m production lengths. This specific product is 35 ft, approximately 10.7 m, so buyers should confirm the exact 35 ft configuration when ordering.
General Pipe 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 requirements.
| Pipe 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 |
For the 3/8 x 5/8 configuration, the DABUND product family lists 3.0–4.0 ton and 36,000–48,000 BTU as general references. Actual compatibility must be confirmed from the HVAC equipment manufacturer's exact refrigerant piping requirements.
Why Choose the DABUND 35 ft 3/8 x 5/8 Copper Pipe?
High-Purity Copper Construction
The source product information specifies 99.9% pure copper and identifies ASTM B280 / C12200 copper material for compatible HVAC refrigerant piping applications.
White PE Multi-Layer Insulation
The featured multi-layer insulation combines an embossed PE exterior, IXPE foam and a closed-cell inner structure.
Pre-Flared Connections
Factory-prepared flare ends with flare nuts can reduce field tube-end preparation when they match the selected HVAC equipment.
OEM and Distributor Supply
DABUND supports OEM and ODM requirements and offers multiple pipe-size, insulation-thickness and packaging options for distributors and project buyers.
DABUND Insulated Copper Pipe Factory
DABUND manufactures insulated copper pipe, mini split line sets, aluminum pipe and related HVAC parts for distributors, contractors and project customers.
Insulation Test Documentation
The certificate section in the source page references ASTM E84, UL94, ASTM D1056 and ASTM G21 for applicable Polypropylene or Black Rubber insulation configurations.
Because the featured product configuration on this page is White PE, buyers requiring compliance documentation should confirm the exact insulation material, insulation thickness and corresponding test report for the ordered product.
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 3/8 in. x 5/8 in. mean?
It refers to the outside diameters of the two refrigerant tubes: 3/8 in. for the liquid line and 5/8 in. for the suction return line.
How long is this insulated copper pipe?
The product is 35 ft long, approximately 10.7 m.
What copper material is used?
The source product information specifies 99.9% pure copper and references ASTM B280 / C12200 copper material.
Are the pipe ends pre-flared?
Yes. The source product information specifies pre-flared ends with flare nuts.
What insulation material is shown?
The featured page configuration shows White PE insulation with an embossed PE exterior, IXPE foam middle layer and closed-cell inner insulation structure.
What is the listed insulation temperature range?
The source technical specification table lists a temperature range of approximately -40°C to 120°C.
What White PE insulation thicknesses are available?
The wider product family lists 8 mm, 9 mm, 10 mm, 13 mm, 19 mm and 25.4 mm White PE insulation options.
What size HVAC system can use a 3/8 x 5/8 line set?
The DABUND product family lists 3/8 x 5/8 as a general reference for some 3.0–4.0 ton or 36,000–48,000 BTU systems. Final refrigerant-line sizing must follow the HVAC equipment manufacturer's exact requirements.
Is this copper pipe compatible with R410A, R32 and R22?
R410A, R32 and R22 are listed in the source product information. Final suitability must be confirmed against the HVAC equipment manufacturer's refrigerant, pressure and tubing requirements.
Is this line set compatible with every mini split brand?
Universal compatibility should not be assumed. Confirm the required liquid-line diameter, suction-line diameter, flare connection size, refrigerant requirements and permitted line length for the specific HVAC model.
Can the insulated copper pipe be cut during installation?
Yes. The source product information states that the pipe can be cut to the required length. After cutting, use proper HVAC deburring, flaring and sealing procedures.
Is the insulation suitable for outdoor installation?
The source product information describes the insulation as using UV-resistant and moisture-resistant materials for outdoor HVAC applications. Final suitability should be confirmed for the selected configuration and installation environment.
What other insulated copper pipe 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.
Is DABUND a manufacturer?
Yes. DABUND identifies itself as a manufacturer of insulated copper pipe, mini split line sets, aluminum pipe and related HVAC products.
Can DABUND provide free samples?
Yes. The listed sample policy provides up to three free samples for qualified requests, with the buyer responsible for express freight. View Sample Information
What payment terms are available?
Listed payment options include T/T, L/C at sight and credit card.
What delivery terms are available?
Listed delivery terms include EXW, FOB, CFR and CIF.
Does DABUND support OEM and ODM?
Yes. OEM and ODM customization is listed as 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.
