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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
50 Ft 1/4" x 5/8" Insulated Copper Pipe for Air Conditioning
The 50 ft 1/4" x 5/8" insulated copper pipe for air conditioning is designed for compatible mini split air conditioners, heat pumps, centralized air ducted units, VRF systems, and HVACR refrigeration applications. It combines a 1/4-inch liquid line and a 5/8-inch suction line with durable black rubber insulation or customized insulation options.
DABUND PIPE has produced insulated copper pipe, mini split line sets, air conditioning copper tubing, aluminum pipe, and HVAC parts since 2008. This product is suitable for HVAC contractors, air conditioner installers, wholesalers, distributors, importers, and OEM buyers that need stable copper quality, reliable insulation, and export-ready supply.
Important compatibility note: Always confirm the required copper line size, pipe wall thickness, refrigerant type, maximum line length, flare connection, insulation thickness, and pressure requirements according to the air conditioner or refrigeration equipment manufacturer’s installation manual.
Product Specifications
| Product Name | 50 Ft 1/4" x 5/8" Insulated Copper Pipe for Air Conditioning |
| Product Type | Insulated copper pipe / AC copper line set / HVAC refrigerant line set |
| Copper Line Size | 1/4" x 5/8" |
| Metric Size | 6.35 mm x 15.88 mm outside diameter |
| Length | 50 ft / approximately 15 m |
| Copper Material | 99.9% pure copper, C12200 DHP copper option available |
| Copper Standard | ASTM B280 configuration available for HVAC and refrigeration field service |
| Insulation Material | Black rubber insulation or customized insulation material |
| Insulation Thickness | 3/8", 1/2", or customized thickness; 8 mm, 9 mm, 10 mm, 13 mm, 19 mm, 25.4 mm options available |
| Working Temperature | -40°C to 120°C for stated black rubber insulation configuration |
| Pressure Rating | 2100 to 7000 PSI depending on size and configuration |
| Available Test Reports | ASTM E84, UL 94, ASTM D1056, ASTM G21, and related insulation documentation |
| Application | Ductless mini split, heat pump, centralized air ducted unit, air conditioning, refrigeration, and HVACR installation |
| Customization | Length, copper size, insulation thickness, insulation color, printing, company name, size mark, meter mark, packaging, and OEM branding |
Key Features of 50 Ft 1/4" x 5/8" Insulated Copper Pipe
1/4" x 5/8" Copper Line Size
The 1/4" x 5/8" size refers to the outside diameter of the copper tubes. In metric measurement, the size is approximately 6.35 mm x 15.88 mm. This size is used only for air conditioning or refrigeration systems that require this exact liquid-line and suction-line combination.
99.9% Pure Copper Tube
The copper pipe is produced with 99.9% pure copper, with ASTM B280 and C12200 DHP copper options available. High-quality copper tubing helps support stable refrigerant flow, installation reliability, pressure performance, and long service life in HVACR systems.
Black Rubber Insulation for Air Conditioning
The black rubber insulation provides thermal protection, condensation control, UV resistance, and a clean installation appearance. The insulation is suitable for refrigerant piping used in residential, commercial, and light-industrial air conditioning projects.
HVACR Application Compatibility
This insulated copper pipe can be used for compatible ductless mini split systems, heat pumps, centralized ducted air conditioning units, refrigeration systems, and general HVACR applications. Final compatibility depends on the equipment manufacturer’s line-size requirement.
Custom Printing and OEM Supply
DABUND produces the insulation in-house and can print company name, pipe size, meter marks, brand information, and product specifications on the insulation surface. This supports distributors, importers, and OEM buyers that need private-label insulated copper pipe.
99.9% Pure Copper
Black Rubber Insulated Pipe
Plastic Cap Protection
Black Rubber Pipe Insulation Benefits
Black rubber pipe insulation is used to protect the copper refrigerant line from heat gain, condensation, surface damage, and outdoor exposure. It also helps improve the appearance and durability of the air conditioning installation.
Heat preservation: The high-density closed-cell structure helps reduce thermal conductivity and maintain stable refrigerant line performance.
Moisture condensation control: The insulation layer also works as a moisture barrier when properly installed and sealed.
UV resistance: UV-resistant insulation options are available for outdoor and exposed installation environments.
Flame-retardant options: Selected configurations can support M1 or B1 flame-resistant requirements.
Corrosion protection: The insulation helps protect the copper pipe surface from moisture, dust, and environmental contact.
Cleaner installation: The insulated line set helps keep the air conditioner pipe route neat and organized.
50 Ft Insulated Copper Pipe for HVACR Applications
The 50 ft 1/4" x 5/8" insulated copper pipe is suitable for compatible HVACR applications where the system requires this line-set size and length. A 50 ft line set is often selected when the indoor unit and outdoor unit are installed farther apart.
Installers should verify the maximum allowed piping length, vertical lift, bend radius, insulation requirement, vacuum procedure, pressure test requirement, and additional refrigerant charge before installation.
Available Insulated Copper Pipe Sizes
DABUND supplies multiple insulated copper pipe sizes for mini split air conditioners, heat pumps, refrigeration systems, and HVACR projects. Sizes, lengths, insulation thicknesses, and packaging can be customized for wholesale and OEM orders.
| Size | Length | Insulation Black Rubber | Flame Resistant |
| 1/4" + 3/8" | 15 m / 20 m / 25 m / 30 m / 50 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 1/4" + 1/2" | 15 m / 20 m / 25 m / 30 m / 50 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 1/4" + 5/8" | 15 m / 20 m / 25 m / 30 m / 50 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 3/8" + 5/8" | 15 m / 20 m / 25 m / 30 m / 50 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 3/8" + 3/4" | 15 m / 20 m / 25 m / 30 m / 50 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 1/2" + 3/4" | 15 m / 20 m / 25 m / 30 m / 50 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
| 3/8" + 7/8" | 15 m / 20 m / 25 m / 30 m / 50 m | 8 mm / 9 mm / 10 mm / 13 mm / 19 mm / 25.4 mm | M1 / B1 |
How to Choose the Correct Insulated Copper Line Set
Copper pipe size should be selected according to the HVAC equipment manual rather than by tonnage or BTU alone. Different brands and models may require different liquid-line and suction-line sizes even when the cooling capacity looks similar.
| Line Set Size | Common Reference Application | Selection Note |
| 1/4" + 3/8" | Smaller mini split and split AC systems | Check model-specific connection size |
| 1/4" + 1/2" | Small to medium air conditioning systems | Confirm refrigerant type and permitted line length |
| 1/4" + 5/8" | Systems requiring 1/4" liquid line and 5/8" suction line | Use only when specified by the equipment manual |
| 3/8" + 5/8" | Medium to larger split AC or heat pump systems | Confirm pipe size, pressure rating, and insulation thickness |
| 3/8" + 3/4" | Higher-capacity HVAC systems | Confirm installation design and refrigerant requirements |
| 3/8" + 7/8" | Large HVACR applications | Confirm compatibility before procurement |
Why Choose DABUND PIPE as Your Insulated Copper Pipe Manufacturer?
DABUND PIPE is a manufacturer of insulated copper pipe, mini split line sets, aluminum pipe, air conditioner installation kits, and HVAC parts. With production experience since 2008, DABUND supports global buyers with stable factory supply, export service, and customized OEM solutions.
Factory production: Integrated supply of insulated copper pipe and related HVAC parts.
Experience since 2008: Long-term manufacturing and export experience for HVAC line set products.
OEM support: Custom logo, printing, insulation, length, packaging, and carton design.
Flexible size range: Copper sizes from 1/4" to 1 1/8" and lengths from 15 m to 50 m are available.
Bulk order supply: Suitable for wholesalers, distributors, importers, HVAC brands, and project buyers.
Export coordination: Support for EXW, FOB, CFR, CIF, documentation, and shipment planning.
DABUND Factory
DABUND produces insulated copper pipe, mini split line sets, aluminum pipe, and HVAC parts for distributors, wholesalers, contractors, importers, and OEM brands.
SGS Certificate and Insulation Test Reports
Selected insulation configurations can support test documentation such as ASTM E84, UL 94, ASTM D1056, ASTM G21, UV resistance, flame performance, and material property reports. Please confirm the required report before order confirmation.
International HVAC Exhibitions
DABUND attends international HVAC exhibitions to help customers inspect insulated copper pipe, mini split line sets, air conditioner installation kits, and HVAC accessories directly.
FAQ About 50 Ft 1/4" x 5/8" Insulated Copper Pipe
What does 50 ft 1/4" x 5/8" insulated copper pipe mean?
It means the product is a 50 ft insulated copper line set with one 1/4-inch copper tube and one 5/8-inch copper tube. These two lines are commonly used as liquid and suction lines in compatible air conditioning and refrigeration systems.
Is this 1/4" x 5/8" copper line set suitable for every air conditioner?
No. It is suitable only for systems that require a 1/4" liquid line and a 5/8" suction line. Always check the air conditioner or heat pump installation manual before ordering.
Can this insulated copper pipe be used for R410A or R32 systems?
It can be supplied for compatible HVAC systems, but the final use depends on copper wall thickness, pressure rating, local code, and equipment requirements. Confirm the refrigerant type and pressure requirements before purchase.
What insulation thickness can DABUND supply?
DABUND can supply insulation thicknesses such as 8 mm, 9 mm, 10 mm, 13 mm, 19 mm, and 25.4 mm. Inch thickness options such as 3/8" and 1/2" are also available depending on the project requirement.
Does the copper pipe meet ASTM B280?
ASTM B280 copper tube configuration is available. Buyers should confirm copper material, wall thickness, pressure rating, test documentation, and order specification before mass production.
Can you print our brand name on the insulation?
Yes. DABUND can print company name, brand logo, product size, meter marks, and other required information on the insulation surface for OEM and private-label orders.
Can I order customized lengths?
Yes. Besides 50 ft, DABUND can supply different lengths such as 15 m, 20 m, 25 m, 30 m, 50 m, and customized lengths according to wholesale or project requirements.
Are you a manufacturer or trading company?
DABUND is a manufacturer of insulated copper pipe, mini split line sets, air conditioner installation kits, aluminum pipe, and related HVAC parts.
Can I get samples before bulk order?
Yes. Sample support is available. Buyers can check copper quality, insulation material, insulation thickness, printing, packaging, and overall product quality before confirming bulk orders.
What payment terms do you accept?
Common payment terms include T/T, L/C at sight, credit card, and other agreed payment methods depending on order value and cooperation terms.
What delivery terms are available?
DABUND can support EXW, FOB, CFR, CIF, and other common export delivery terms. Final terms depend on destination, order volume, shipping method, and buyer requirements.
How long is the delivery time?
Standard delivery time is usually around 15 to 20 days, depending on order quantity, production schedule, packaging requirements, and customization details. Urgent orders can be discussed in advance.
