Air Conditioner Connection Pipe
The air conditioner connection pipe is a core component of the home air-conditioning system.
It is used to connect the indoor unit and the outdoor unit, realizing the cyclic transportation of refrigerant.
It directly affects the cooling/heating efficiency, stability, and service life of the air-conditioner.
As a professional ac pipe manufacturer, JIAHAO focuses on producing high-quality air conditioner connection pipe for global users.
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Core Classifications (by Material)
Pure Copper Pipe
Copper Corrugated Pipe
Copper - Aluminum Connecting Pipe
Material Properties: Made of high-purity red copper, it has excellent thermal conductivity, corrosion resistance (anti-oxidation, anti-refrigerant corrosion), and toughness. It is not easy to rupture after being bent.

Core Advantages: Strong sealing performance, low risk of refrigerant leakage; not easy to age during long-term use (10-15 years), suitable for various climatic environments; high maintenance compatibility, and it is the mainstream choice in the industry, matching standard air conditioner lines.

Applicable Scenarios: Scenarios of long-term home use, high-humidity/coastal areas, and scenarios with high requirements for air-conditioner stability; works with common air conditioner lines for split systems.
Material Properties: Copper tubes offer high thermal conductivity and corrosion and oxidation resistance; the PE layer provides excellent thermal insulation and resists UV and chemical damage.

Core Advantages: High thermal conductivity and corrosion resistance, strong flexibility, easy installation, reduced leakage, energy-saving and environmentally friendly, and long life; compatible with most air conditioner lines.

Matters Needing Attention: Select the appropriate model and install according to specifications. Avoid excessive bending, ensure joints are sealed, test after completion, and perform regular maintenance to prevent aging.

Applicable Scenarios: Widely used in heating and air conditioning systems, hot and cold water supply, solar water heating pipelines, chemical fluid transportation, and cable protection; seamlessly fits air conditioner lines in HVAC setups.
Material Properties: The pipe body is an aluminum pipe, and the joints at both ends are copper pipes (connected by a special process), taking into account both cost and joint sealing performance.

Core Advantages: Lower cost than pure copper air conditioner connection pipe, and the sealing performance of the joint (copper pipe) is better than that of pure aluminum pipes; high installation flexibility, matching standard air conditioner lines.

Matters Needing Attention: The joint needs to be protected emphatically (material difference is prone to oxidation). It is recommended to regularly check the sealing state; medium service life (5-8 years).

Applicable Scenarios: Scenarios for mid-range budgets, non-coastal/non-high-humidity areas, and families planning to replace the air-conditioner in the medium term (about 5 years); works with common air conditioner lines.
Air Conditioner Connection Pipe
Jiahao PE Insulated Copper Pipe Coil manufactured to Australian Standard AS/NZS 1571 is suitable for use in domestic split system air conditioners with high pressure refrigerants R410A and R32. Produced to be more durable with embossed polyethylene flm and crossed-linked, foamed closed cell polyethylene outer insulation.
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Key Performance Indicators

Pressure Resistance The air conditioner connection pipe needs to withstand the refrigerant pressure during the normal operation of the air-conditioning system (usually ≥2.5MPa) to prevent the pipe from rupturing, ensuring stable refrigerant transport for air conditioner lines.
Thermal Insulation Special-purpose thermal insulation cotton (mostly PE or rubber-foam material) is matched to reduce cold/heat loss and avoid the generation of condensed water.
Bending Radius Pure copper air conditioner connection pipe needs a radius ≥5 times pipe diameter; aluminum/copper-aluminum types ≥8 times to avoid blockages in air conditioner lines.

Purchase Suggestions

  • Prioritize Pure Copper Pipes
    For long-term use or high humidity, choose pure copper air conditioner connection pipe (wall thickness ≥0.8mm, preferably "T2 red copper").
  • Check Matching Accessories
    Ensure qualified insulation cotton (≥15mm) and refrigerant-resistant sealing rings—critical for air conditioner connection pipe performance.
  • Match AC Power
    Select diameter by cooling capacity (e.g., 1.5HP uses φ6.35/φ12.7mm; 2HP uses φ6.35/φ15.88mm) to fit air conditioner lines.

Customize cooling solutions to meet your every need.

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Air Conditioner Connection Pipe from Jiahao

As a professional ac pipe manufacturer, we specialize in the professional design, research, development, manufacturing, and comprehensive sales service of refrigeration solutions.

With a workforce of over 120 skilled employees, we operate 6 workshops spanning 25,000 square meters, equipped with more than 10 automated production lines for efficient output.


High-quality products with a 3-year warranty and triple compensation for any failure.
High cost-performance ratio, competitive pricing among products of similar quality.
Strong product expertise, market and application understanding, and expert advice.
Short delivery time: 20-30 days for custom products and 7-15 days for in-stock products.
Customized packaging, free design available.
Product certificates, complete test reports, and over 50 invention and technology patents.
Payment method: T/T (30%), pre-shipment payment accepted for long-term customers.

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FAQ

  • What are the common materials of home air conditioner connection pipe?

    The main materials include copper pipes, aluminum pipes, and copper-aluminum connecting pipes. Copper pipes are the mainstream choice for air conditioner lines, thanks to their optimal corrosion resistance, thermal conductivity, and stability.

  • Which is better: copper-aluminum connecting pipes or pure copper pipes?

    Pure copper air conditioner connection pipe has better overall performance—good aging resistance and low refrigerant leakage risk, suitable for long-term use. Copper-aluminum pipes cost less but need tight sealing (joints oxidize easily), ideal for short-term use or limited budgets.

  • Does the length of air conditioner connection pipe affect AC performance?

    Yes. Excessive length increases refrigerant loss and reduces cooling/heating efficiency of air conditioner lines. Usually, it should not exceed 10-15 meters (manufacturer’s max limit); beyond that, professionals need to adjust refrigerant volume.

  • Do air conditioner connection pipes need thermal insulation?

    Yes. Without insulation, cold/heat loss harms efficiency, and condensation may damage walls/furniture. Use special insulation cotton and seal joints tightly to protect the air conditioner connection pipe.

  • What should be done if the connecting pipe leaks refrigerant?

    Turn off the AC first, then contact professionals to find leaks (often at joints/bends). Replace damaged sections or re-weld seals, then refill with specified refrigerant to restore air conditioner lines.

  • Can air conditioner connection pipes be bent during installation?

    Moderate bending is allowed, but avoid over-bending or dead bends—this causes blockages and poor refrigerant circulation in air conditioner lines. The bending radius should be at least 5 times the pipe diameter.

  • How often to replace air conditioner connection pipe?

    With proper maintenance (no corrosion/leaks), pure copper pipes last 10-15 years; aluminum/copper-aluminum pipes last 5-8 years. Inspect every 5-8 years and replace if oxidation, bulging, or leakage occurs.

  • Will exposed air conditioner connection pipe be damaged in rain?

    Outdoor pure copper air conditioner connection pipe needs rust prevention (e.g., anti-rust paint). Aluminum pipes oxidize easily in rain—follow a professional ac pipe manufacturer’s advice: wrap exposed parts with waterproof insulation or avoid long-term outdoor exposure.