Product Overview: 75 ft 3/8″ x 5/8″ Mini-Split Long Line Set
HVAC Parts are produced by Dabund Pipe since 2008 years.
Get free sample on qualified 75 ft 3/8" x 5/8" Mini Split Long Line Set. AC copper line set are made up of two copper pipes that meets ASTM B280 & C12200. White Insulation with UL94, ASTM E 84, ASTM D1056 and ASTM G 21 standard, up to 120℃ and suitable for any construction.
The Mini Split Long Line Set is twin already. So buy it now.
Specifications & Industry Standards
Key Features of 100 ft 3/8" x 5/8" Mini Split Long Line Set
1. 3/8" x 5/8" is the out dimension in inch. 9.52mm - 15.88mm is the out dimension in metric.
2. 99.9% Pure copper pipe meets ASTM B280 and C12200 standard.
3. AC Copper Size what we can do have following 1/4" 3/8" 1/2" 5/8" 3/4" 7/8" 1 1/8", length can do 15m 20m 25m 30m 50m.
4. Insulation is made of 1/2" Polypropylene & UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21. Working temperature from -40℃ to 120℃.
5. Works for every Air Conditioning & Refrigeration Application including Ductless mini-split, heat pump and Centralized Air Ducted Units.
6. Pressure Rating: 2100 to 7000 PSI, much more than required 700 PSI for R410.
7. Insulation we produce by ourself, can print your company name, size, meters etc.
Specifications & Industry Standards
Materials: High-Purity Copper Tubing
Insulation: High density closed cells polyethylene foam
Working Temperature: meets/exceeds ASTM C 1427-07
Surface burning characteristics: UL 94, top-rated for Surface Burning Characteristics – UL 723 Flame and Spread Index less than 25 and Smoke Development Index less than 50
Meets ASTM E84 for smoke and fire (25/50)
Superior tear resistance, UV resistant
Features of pipe insulation tubing:
![White PE Embossed insulated pipe]( "insulated pipe")
Key Features & Benefits
Excellent Thermal Insulation Efficiency
With embossed polyethyene film, climate resistant foam, and thickened insulated cotton, this three-layer insulated mini split copper line set is corrosion-resistant, fireproofing, flame-retarded, thermal insulation, waterproof, shockproof, sound absorption and durable.
Durable Construction for Long-Term Use
Outer Layer: Anti-aging, UV-resistant PE fllm, wear-resistant embossed pattern, antl-aging.
High Pressure & Wide Application Compatibility
Middle Layer: IXPE foam, dense cell, heat and cold-resistant, impact absorption, no water penetration, good thermal insulation. Water cross-linked PE foam.
Inner Layer: Closed-cell structure, air tightness; good thermal insulation, temperature resistant -40℃~120℃.
75 ft 3/8" x 5/8" Mini Split Long Line Set for HVACR Applications Wholesaler & Supplier
DABUND PIPE in-house tested insulate copper pipe and tubing is designed to make installation simple and quick – saving you time and money on each job.
![White PE copper line set]( "Copper Line Set")
Mini Split Line Set
Size | Length | Insulation White PE | Flame Resistant |
1/4+3/8 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/4+1/2 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/4+5/8 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
3/8+5/8 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
3/8+3/4 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/2+3/4 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
3/8+7/8 | 15m/20m/25m/30m/50m | 8mm/9mm/10mm/13mm/19mm/25.4mm | M1/B1 |
1/4 + 3/8 AC line set used for 0.75TON - 1.0TON mini split air conditioner.
1/4 + 1/2 Mini split line set used for 1.5TON - 2.0TON mini split air conditioning.
1/4 + 5/8 Copper line set used for 2.0TON - 2.5TON split air conditioner system.
3/8 + 5/8 Insulated copper tube apply for 3.0TON - 4.0TON ductless mini split air conditioner.
3/8 + 3/4 Insulated copper tubing used for 4.5TON - 6.0TON split air conditioner installation.
3/8 + 7/8 Insulated copper piping apply for 6.0TON - 8.0TON ductless mini split air conditioner.
Air conditioning copper line sets 1/4 + 3/8 used for 0.75P and 1P split air conditioning.
Copper pipe kit 1/4 + 1/2 commonly used for 1.5P and 2P mini split air conditioners.
1/4 + 5/8 Insulated copper line set used for 2P and 2.5air conditioner system.
3/8 + 5/8 Mini-split copper line set apply for 3P and 4P ductless mini split air conditioner.
3/8 + 3/4 Copper pipe kit used for 4.5P and 6P split aircon installation.
3/8 + 7/8 Insulated copper pipe apply for 6P - 8p TON ductless mini split air conditioner.
1/4 + 3/8 Mini split line set used for 9000BTU and 12000 BTU split air conditioner.
All copper line set 1/4 + 1/2 commonly used for 12000 BTU and 18000 BTU mini split air conditioners.
1/4 + 5/8 Insulated copper line set used for 24000 BTU and 30000 BTU air conditioner system.
3/8 + 5/8 Mini-split line set apply for 36000 BTU and 48000 ductless air conditioner.
3/8 + 3/4 HVAC lineset used for 54000 BTU and 72000 split air conditioner installation.
3/8 + 7/8 Insulated copper piping apply for 72000 BTU - 96000 BTU ductless mini split air conditioner.
Aircon copper line set 1/4 + 3/8 used for 9K and 12K split air conditioner.
High quality copper line set 1/4 + 1/2 commonly used for 12K and 18K mini split air conditioners.
1/4 + 5/8 Insulated copper line set used for 24K and 30K air conditioner system.
3/8 + 5/8 Mini-split line set apply for 36K and 48K ductless air conditioner.
3/8 + 3/4 HVAC lineset used for 54K and 72K split air conditioner installation.
3/8 + 7/8 Insulated copper pipe apply for 72K - 96K ductless mini split air conditioner.
Why Choose This 75 ft Mini-Split Long Line Set
Trusted Quality & Industry Compliance
We are manufacturer of mini split line set since 2008 years, have good experience of producing and exporting. We have cooperated 9 years forwarder, can guarantee the shipment. Every week we load at least 6-8 40HQ to different countries. Choose Dabund You will win the business.
Ready-to-Use Design Saves Installation Time
Individual pre-insulated rolls to perfectly fit every ductless mini-splits, VRF, heat pumps and unitary systems installation.
Quality products with competitive pricing
Peace of mind with professional services
DABUND FACTORY
We produce Insulated Copper Pipe, Mini Split Line Set and Aluminum Pipe and HVAC Parts
![DABUND FACTORY]( "DABUND FACTORY")
SGS Certificate
Mini Split Line Set is made of Polypropylene or Black Rubber with UV Resistant, meets ASTM E 84, UL94, ASTM D1056 and ASTM G 21
![证书]( "证书")
Exhibition
We join the exhibitions all over the word, just to facilitate customers to experience our mini split line set face to face.
![AHR EXPO]( "AHR EXPO")
FAQ
### What is an HVAC line set?
An HVAC line set is a pair of copper tubes used to transport refrigerant between the indoor and outdoor units of an HVAC system. It typically includes a smaller liquid line and a larger suction line, both of which are essential for efficient cooling and heating performance.
### What does an HVAC line set consist of?
An HVAC line set consists of two copper pipes: the liquid line and the suction line. Most modern HVAC line sets are pre-insulated to reduce heat transfer, prevent condensation, and improve overall system efficiency.
### What are HVAC line sets used for?
HVAC line sets are used in air conditioning systems, mini-split units, heat pumps, and refrigeration systems. They enable the circulation of refrigerant, allowing the system to absorb and release heat effectively.
### What sizes are available for HVAC line sets?
HVAC line sets are available in various size combinations, such as 1/4" x 3/8", 1/4" x 1/2", 3/8" x 5/8", and 3/8" x 7/8". The correct size depends on the HVAC system capacity and manufacturer specifications.
### How do I choose the correct HVAC line set size?
The correct HVAC line set size is determined by the system’s tonnage, refrigerant type, and maximum allowable line length. Always follow the HVAC equipment manufacturer’s installation guidelines to ensure proper system performance and efficiency.
### Are HVAC line sets pre-insulated?
Yes. Most HVAC line sets are factory pre-insulated using closed-cell foam or rubber insulation. Pre-insulated line sets reduce energy loss, minimize condensation, and speed up installation.
### Can HVAC line sets be used for heat pump systems?
Yes. HVAC line sets are fully compatible with heat pump systems and are designed to handle both cooling and heating cycles, including the higher pressure requirements of modern refrigerants.
### What material is used for HVAC line sets?
HVAC line sets are typically made from high-purity copper tubing, such as ASTM B280 or C12200 copper. Copper provides excellent thermal conductivity, corrosion resistance, and long service life in HVAC applications.
### Are HVAC line sets compatible with modern refrigerants?
Yes. High-quality HVAC line sets are designed to be compatible with modern refrigerants such as R410A and R32, as long as they meet applicable pressure and manufacturing standards.
### Can HVAC line sets be installed outdoors?
Yes. HVAC line sets can be installed outdoors when the insulation is UV-resistant or protected with an additional sleeve or conduit to prevent damage from sunlight and weather exposure.
### How long does an HVAC line set last?
When properly installed and maintained, an HVAC line set can last 20 to 30 years or more. Copper tubing combined with durable insulation ensures long-term reliability.
### Are HVAC line sets easy to install?
HVAC line sets are flexible and designed for efficient routing during installation. However, professional installation is recommended to ensure correct flaring, brazing, evacuation, and refrigerant charging.
### Can HVAC line sets be customized?
Yes. HVAC line sets can be customized in length, diameter, insulation thickness, and packaging. OEM and private-label options are widely available for distributors and HVAC manufacturers.
### Do HVAC line sets improve energy efficiency?
Yes. Properly sized and insulated HVAC line sets reduce heat gain, refrigerant pressure loss, and energy consumption, helping HVAC systems operate more efficiently and reliably.
