Social Media
Standard Fit: Premium 1/4 3/8 pipe combination, perfect for 90% of mini-split systems (9K-18K BTU).
High Efficiency: Features a durable 1/4'' insulated copper pipe for maximum thermal retention and fast cooling.
Certified Quality: AS/NZS 1571 compliant, strictly tested for high-pressure refrigerants R410A and R32.
Easy Installation: Pre-insulated, embossed PE film prevents tearing; no extra tape or glue needed.
Jiahao White PE insulated copper pipe manufactured to Australian Standard AS/NZS 1571 is highly suitable for use in domestic split system air conditioners utilizing high-pressure refrigerants such as R410A and R32.
Produced to be more durable with embossed polyethylene film and crossed-linked, foamed closed cell polyethylene outer insulation. The 10/16/33/50/65ft pre-insulated annealed copper pair coil with continuous marking every meter makes it easy to install and save time & money as no measurement, glue or tape is needed.
✔
✔
✔
| Product Code | Copper Tube OD & Wall (mm) | Copper Tube OD (inch) | Length (ft) | R-Values | R410A & R32 Rated |
|---|---|---|---|---|---|
| JHC2320 | 6.35x0.81 + 9.52x0.81 | 1/4+3/8 | 65 | 0.26 | Yes |
| JHC2420 | 6.35x0.81 + 12.70x0.81 | 1/4+1/2 | 65 | 0.26 | Yes |
| JHC2520 | 6.35x0.81 + 15.88x1.02 | 1/4+5/8 | 65 | 0.26 | Yes |
| JHC3520 | 9.52x0.81 + 15.88x1.02 | 3/8+5/8 | 65 | 0.26 | Yes |
| JHC3620 | 9.52x0.81 + 19.05x1.14 | 3/8+3/4 | 65 | 0.26 | Yes |
| JHC4620 | 12.70x0.81 + 19.05x1.14 | 1/2+3/4 | 65 | 0.26 | Yes |
| Material | Highly flexible paired polyethylene |
| Thermal Conductivity | 0.035W/m.K. at 0℃ |
| Tensile Strength | 55.8N/cm2 (kgf/cm2) |
| Water Absorption | 0.0051 MAX g/100cm2 |
| Appearance Density | Inner Tube: 0.028g/cm3; Outside Tube: 0.0303g/cm3 |
| Safe Working Pressure (6.35x0.8mm) | 10635 kpa (at 50℃) / 9545 kpa (at 65℃) |
1/4" + 3/8" (6.35mm + 9.52mm) air conditioning copper pipes have always been the best-selling and most widely used product in the North American / overseas markets.
1/4" = High-pressure liquid pipe (thin)
3/8" = Low-pressure gas pipe (thick)
Almost all domestic/commercial 9K, 12K, 18K BTU (1.5 tons to 2 tons) mini split air conditioners, the factory interface is 1/4 + 3/8.
→ Buying an air conditioner means you must have this set of pipes; it's a necessity, a hard currency, and the most used 1/4 3/8 pipe.
The most widely used and has the most customers:
Residential: Bedroom, living room, study, split units.
Commercial: Convenience store, restaurant, office, machine room.
Construction: Apartment building renovation, rental housing, small shop renovation.
Heat pump: Small heat pump system (both cooling and heating).
→ In one sentence: All small air conditioners use this insulated copper pipe; there is no other option, the widest audience.
The size ratio of flow, pressure, and efficiency is perfectly balanced:
1/4 thin pipe: High-pressure liquid flow rate is fast, pressure drop is small, and the cooling efficiency is the highest.
3/8 thick pipe: Low-pressure gas return flows smoothly, no frosting, no pressure build-up, compressor does not break.
Material Saving: Cheaper than 1/4 + 1/2; smaller and easier to install than 3/8 + 5/8.
→ The best solution for cost performance + performance + durability.
Overseas labor is expensive, the construction site needs to be fast:
Factory prefabrication: Copper pipe + insulation layer + straps + speaker port + nuts complete set.
Pre-thermally insulated whole roll: (30ft/50ft/100ft) ready to use upon arrival. No splicing, no leakage, saves time, less rework.
Soft and bendable: The 1/4'' insulated copper pipe is good for construction in walls, conduits, and ceilings.
→ It takes 15 minutes to install one unit; workers rush to use it.
 |  |  |  |  |  |  |
