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DBJ-003
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DABUND
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Copper
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1M - 10M
Material
Color
Keywords
Application
25 Ft 1/2" x 3/4" Insulated Copper Tube
DABUND 25 Ft 1/2" x 3/4" Insulated Copper Tube is a pre-insulated copper line set for compatible HVACR systems requiring 1/2-inch and 3/4-inch refrigerant tubing.
This configuration is supplied with 1/2" White PE insulation according to the current product information. Both copper tubes have factory-prepared flared ends and nuts for compatible flare-type HVAC connections.
The copper tubing is identified with ASTM B280 and C12200 DHP references. The 25 ft length provides approximately 7.62 m of insulated tubing for installations where the HVAC equipment manufacturer permits this piping length and requires the 1/2" x 3/4" tubing combination.
Quick Answer: This is a 25 ft 1/2" x 3/4" insulated copper line set with 1/2" White PE insulation, factory-prepared flared ends and nuts for compatible HVACR installations.
Compatibility Notice: Equipment capacity alone should not be used to select this line set. Confirm that the actual HVAC system specifically requires 1/2" and 3/4" refrigerant tubing and that the planned 25 ft piping length complies with the equipment manufacturer's installation requirements.
25 Ft 1/2" x 3/4" Copper Line Set Specifications
| Product Type | Pre-Insulated Copper Tube / Copper Line Set |
| Tube Size | 1/2" x 3/4" |
| Metric Outside Diameter | Approximately 12.70 mm x 19.05 mm |
| Length | 25 ft / approximately 7.62 m |
| Current Insulation | 1/2" White PE |
| Copper Tube Reference | ASTM B280 / C12200 DHP |
| Tube End Preparation | Flared ends with nuts |
| Insulation Type | Closed-cell polyethylene-based multilayer insulation system according to current product information |
| Listed Inner Layer Temperature Range | -40°C to 120°C |
| Compatibility | Compatible HVACR systems specifically requiring 1/2" x 3/4" refrigerant tubing |
25 Ft Pre-Insulated Copper Line Set
The 25 ft configuration combines 1/2" and 3/4" copper tubing with factory-applied White PE insulation for compatible HVACR installations.
Pre-insulated construction reduces the amount of separate insulation work required around the refrigerant tubing at the installation site and provides an integrated insulated piping configuration.
A 25 ft line set can be considered for medium-length indoor-to-outdoor equipment routing where this length remains within the minimum and maximum piping limits of the actual HVAC system.
ASTM B280 and C12200 Copper Tubing
The current product information identifies the copper tubing with ASTM B280 and C12200 DHP references for HVACR copper tube applications.
The product imagery also identifies the tubing as 99.9% pure copper.
Required wall thickness, operating conditions and piping specifications should still be confirmed according to the actual HVAC equipment and project requirements.
Factory-Prepared Flared Ends with Nuts
Both copper tube ends are supplied with factory-prepared flares and nuts according to the current product information.
Before connection, inspect the flare surfaces and verify that the flare dimensions, flare nuts and connection method are compatible with the equipment service valves.
99.9% Pure Copper
White PE Insulated Pipe
Copper Nuts
1/2" White PE Insulation
This 25 ft 1/2" x 3/4" product is identified with 1/2" White PE insulation in the current product information.
The insulation system is described as a multilayer construction intended to provide thermal insulation and environmental protection around the copper refrigerant tubing.
White PE Three-Layer Insulation Structure
Outer Layer: Embossed PE Film
The current product information describes the outer layer as an anti-aging and UV-resistant PE film with an embossed, wear-resistant surface.
Middle Layer: IXPE Foam
The middle layer is identified as IXPE foam with a dense-cell structure intended for thermal insulation and impact absorption.
Inner Layer: Closed-Cell Insulation
The inner layer is described as a closed-cell structure providing thermal insulation. The current product information lists a temperature range from -40°C to 120°C for this layer.
Insulation Pipe Production
Insulated Pipe Warehouse
Inner Insulation Layer
Insulation Performance References
The current product information references ASTM E84, UL94, ASTM D1056 and ASTM G21 for insulation-related testing.
It also references ASTM C1427-07 and UL723 surface-burning characteristics in the insulation information. Buyers requiring specific test reports or classifications should confirm that the documentation applies to the exact White PE insulation configuration being ordered.
HVAC Installation Accessories
The current product information references an installation package that can include the insulated copper tubing together with communication wire cable, a 3 m drain hose, wall pipe, wall cover and other installation parts.
Exact package contents should be confirmed specifically for the 25 ft 1/2" x 3/4" configuration before distributor, contractor or project orders are placed.
Available White PE Insulated Copper Tube Sizes
DABUND supplies multiple copper tube combinations, insulation thicknesses and tubing lengths across the insulated copper tube product range.
| Copper Tube Size | Available Lengths | White PE Insulation Options | Listed Flame Class |
|---|---|---|---|
| 1/4" + 3/8" | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4" + 1/2" | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/4" + 5/8" | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8" + 5/8" | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8" + 3/4" | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 1/2" + 3/4" | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
| 3/8" + 7/8" | 3 m / 4 m / 5 m / 7 m / 10 m | 8 / 9 / 10 / 13 / 19 / 25.4 mm | M1 / B1 |
Note: The table above represents the wider White PE insulated copper tubing range. This page specifically covers the 25 ft 1/2" x 3/4" configuration with 1/2" White PE insulation.
Selecting a 1/2" x 3/4" Refrigerant Line Set
The 1/2" x 3/4" tube combination should be selected according to the actual refrigerant piping requirements of the HVAC equipment rather than nominal equipment capacity alone.
The current product information does not specify a universal BTU or tonnage range for the 1/2" x 3/4" combination. Buyers and installers should therefore confirm the required liquid and suction line dimensions directly from the equipment manufacturer's documentation.
Important Checks for a 25 Ft Refrigerant Line
Confirm the Required Tube Sizes
Verify that the actual HVAC equipment specifically requires 1/2" and 3/4" refrigerant tubing.
Check Maximum Permitted Line Length
Confirm that the planned 25 ft piping route is within the maximum refrigerant-line length permitted by the equipment manufacturer.
Check Minimum Permitted Line Length
Some HVAC systems also specify a minimum refrigerant-line length. Follow the equipment manufacturer's requirements if the actual piping route is shorter.
Confirm Vertical Separation
If the indoor and outdoor equipment are installed at different elevations, check the maximum permitted vertical separation for the actual system.
Check Refrigerant Charge Requirements
Check the equipment factory refrigerant charge and the piping length included in that charge. Follow the manufacturer's instructions if refrigerant adjustment is required for the installed piping length.
How to Install a 25 Ft 1/2" x 3/4" Copper Line Set
Step 1: Verify Equipment Compatibility
Check the equipment model and confirm that 1/2" x 3/4" is the required refrigerant-line size.
Step 2: Plan the Piping Route
Measure the route between the indoor and outdoor equipment and confirm that the selected 25 ft length complies with the equipment manufacturer's piping requirements.
Step 3: Protect the White PE Insulation
Avoid crushing, cutting or excessively abrading the insulation while routing the tubing through walls, ceilings or other building structures.
Step 4: Inspect the Flared Ends
Inspect the factory-prepared flare surfaces and nuts before connecting them to compatible service valves.
Step 5: Make the Refrigerant Connections
Follow the HVAC equipment manufacturer's flare-joint connection and tightening requirements.
Step 6: Leak Test and Evacuate
Complete the required leak testing and evacuation procedures according to the equipment manufacturer's installation instructions before system operation.
Step 7: Confirm Refrigerant Charge
Confirm that the installed piping length and refrigerant charge comply with the equipment manufacturer's requirements before commissioning.
HVACR Applications
This 25 ft 1/2" x 3/4" insulated copper line set can be considered for compatible HVACR systems that specifically require this tubing combination and permit the selected piping length.
Compatible split air-conditioning systems
Compatible heat-pump systems
Compatible ductless and unitary HVAC equipment where 1/2" x 3/4" piping is specified
Replacement refrigerant piping projects
Commercial HVAC installation projects
Distributor and contractor purchasing programs
Compatibility must always be verified using the exact HVAC equipment model and manufacturer documentation.
Information to Confirm Before Ordering
HVAC distributors, wholesalers, contractors and project buyers should confirm the following information before ordering:
Required copper tube size: 1/2" x 3/4"
Required tubing length: 25 ft
HVAC equipment model
Minimum and maximum permitted piping length
Vertical separation requirements
Required insulation material and thickness
Required package accessories
Order quantity
Packaging requirements
OEM or private-label requirements
DABUND Insulated Copper Tube Manufacturer
DABUND has produced insulated copper pipe, insulated copper tubing, mini split line sets and related HVAC installation products since 2008.
Multiple copper tube combinations, insulation configurations and piping lengths are available for HVAC distributors, wholesalers, contractors and professional buyers.
OEM and ODM requirements can be discussed according to tubing size, insulation configuration, packaging and commercial order requirements.
DABUND Factory
DABUND produces insulated copper pipe, mini split line sets, aluminum pipe and related HVAC installation products.
Test Documentation
The current product information references insulation testing including ASTM E84, UL94, ASTM D1056 and ASTM G21.
Buyers requiring a particular report or classification should confirm that the requested documentation applies to the exact White PE insulation configuration being ordered.
Exhibition
DABUND presents insulated copper tubing, mini split line sets and related HVAC installation products at industry exhibitions for international buyers.
Frequently Asked Questions
What size is this insulated copper line set?
This product uses 1/2" and 3/4" copper tubing, approximately 12.70 mm and 19.05 mm outside diameter.
How long is this copper line set?
This product is supplied in a 25 ft length, approximately 7.62 m.
What insulation is used on this product?
The current product information identifies this 25 ft configuration with 1/2" White PE insulation.
What is the White PE insulation structure?
The current product information describes an embossed PE outer film, an IXPE middle layer and a closed-cell inner insulation layer.
What copper standards are listed?
The current product information identifies ASTM B280 and C12200 DHP references for the copper tubing.
Are the copper tube ends flared?
Yes. Both copper tube ends are described as flared and supplied with nuts.
What temperature range is listed for the inner insulation layer?
The current product information lists a temperature range from -40°C to 120°C for the closed-cell inner insulation layer.
What BTU or tonnage system uses 1/2" x 3/4" tubing?
There is no universal BTU or tonnage mapping for this tubing combination in the current product information. Select the line size according to the exact liquid and suction tubing requirements specified by the HVAC equipment manufacturer.
Is 25 ft suitable for every HVAC installation?
No. Confirm that 25 ft falls within the minimum and maximum refrigerant piping lengths permitted by the actual HVAC equipment manufacturer.
Does a 25 ft line require additional refrigerant?
It depends on the HVAC equipment. Check the factory refrigerant charge, included piping-length allowance and refrigerant adjustment instructions provided by the manufacturer.
Does vertical separation matter?
Yes. Confirm the permitted elevation difference between indoor and outdoor equipment in the manufacturer's installation documentation.
Can this line set be used with a heat pump?
It can be considered for compatible heat-pump equipment that specifically requires 1/2" x 3/4" refrigerant tubing and permits the selected piping length.
Can this tubing be used with VRF systems?
Only where the applicable VRF piping design specifically requires 1/2" x 3/4" tubing and permits the selected piping configuration.
What accessories can be supplied?
The current product information references communication wire cable, a 3 m drain hose, wall pipe, wall cover and other installation parts. Confirm the exact package contents for this 25 ft 1/2" x 3/4" configuration before ordering.
Are other copper tube sizes available?
Yes. The current product family includes 1/4" x 3/8", 1/4" x 1/2", 1/4" x 5/8", 3/8" x 5/8", 3/8" x 3/4", 1/2" x 3/4" and 3/8" x 7/8" combinations.
Can DABUND provide OEM or ODM insulated copper tubing?
Yes. OEM and ODM requirements can be discussed according to tubing size, insulation configuration, packaging and commercial order requirements.
Can I request a sample?
Sample requests are available according to the current sales policy. View sample information.
What payment terms are available?
Available payment methods can include T/T, L/C at sight and credit card. Final payment terms depend on the commercial agreement.
What trade terms are available?
Available international trade terms can include EXW, FOB, CFR and CIF.
What is the typical delivery time?
The current product information lists a typical delivery period of approximately 15–20 days. Actual lead time depends on order quantity, product configuration, customization and production schedule.
