82 ft 3/8" x 5/8" Line Set for Mini Split

HVAC Parts are produced by Dabund Pipe since 2008 years.

Dabund Pipe produce 82 ft 3/8" x 5/8" x 1/2" Black rubber insulation Line Set for Mini Split. Copper pipe tube is produced based on ASTM B280. White PE has good flame retardant performance, up to 120℃ and smoke is 25/50 rate, suitable for constructions.

The Mini Split Long Line Set is twin already. So buy it now.

Key Features of 82 ft 3/8" x 5/8" Line Set for Mini Split

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.

Copper Tube: ASTM B280 & C12200 DHP

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:

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.

Outer Layer: Anti-aging, UV-resistant PE fllm, wear-resistant embossed pattern, antl-aging.

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℃.

82 ft 3/8" x 5/8" Line Set for Mini Split 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.

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 82 ft 3/8" x 5/8" Line Set for Mini Split from DABUND PIPE

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.

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

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

Exhibition

We join the exhibitions all over the word, just to facilitate customers to experience our mini split line set face to face.

FAQ

Q1: What is an HVAC Line Set and what is its function?
An HVAC line set is a pair of copper tubes connecting the outdoor unit (condenser/heat pump) to the indoor unit (air handler). Its function is to circulate refrigerant to transfer heat. It consists of:
• Suction Line (Large): Insulated, carries cool, low-pressure gas back to the compressor.
• Liquid Line (Small): Less insulated, carries warm, high-pressure liquid to the indoor unit.

Q2: What are the different types of HVAC Line Sets?
Main types are defined by material and build:
• ACR Copper: Industry standard, factory-sealed with nitrogen to prevent contamination.
• Soft vs. Hard Drawn Copper: Soft copper is bendable for easy installation; hard drawn is for straight runs.
• Pre-insulated Line Sets: Most common for homes, with foam insulation (e.g., Armaflex) pre-installed on the suction line.

Q3: How do I choose the correct line set size?
Size is critical and is based on your system’s tonnage (capacity) and the distance between units.
Common Residential Sizes:
• 1.5-2 Ton: 3/8" liquid line, 3/4" suction line.
• 3-4 Ton: 1/2" liquid line, 7/8" suction line.
• 5 Ton: 5/8" liquid line, 1-1/8" suction line.
Always consult a licensed technician or the manufacturer's manual. Incorrect sizing reduces efficiency and can cause damage.

Q4: Can I reuse an existing line set?
Generally not recommended. Reasons include:
• Contamination: Old lines may contain debris or moisture that harms the new compressor.
• Compatibility: Newer systems (R-410A/R-32) run at higher pressures than older ones (R-22).
• Leak Risk: Existing joints and tubing may be fatigued.
Best practice is to install a new line set to ensure performance and protect your warranty.

Q5: What is the purpose of the insulation on the suction line?
The insulation serves two key purposes:

1. Prevents Energy Loss: Keeps the cold refrigerant from absorbing outside heat, maintaining efficiency.

2. Stops Condensation: Keeps the pipe surface above the dew point to prevent water drip, which can cause mold or damage.

Q6: Should I search for "HVAC supply store near me" or "HVAC installation service"?
Always search for a licensed "HVAC installation service" or "HVAC contractor."
• Why a Contractor? Installation requires specialized skills (brazing, pressure testing, evacuation) and is not DIY.
• Supply Store Role: They mainly sell to professionals. Your contractor will source the correct line set for the job.

Q7: What are the consequences of a leaking line set?
A refrigerant leak is a serious problem, causing:
• Reduced cooling/heating capacity.
• Higher energy bills.
• Compressor failure due to overheating and lack of lubrication.
• Environmental harm from released greenhouse gases.
If you suspect a leak (e.g., ice on coils, hissing sounds), contact an HVAC professional immediately for repair.