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The Sparky Direct BPC3858 is a heavy-duty insulated copper pair coil engineered for R410A and R32 refrigerant systems, sized 3/8" x 5/8" and supplied in a 20-metre roll. The BPC3858 delivers dependable thermal performance and long-term durability across demanding air-conditioning installations in residential, commercial, and mobile systems.
HVAC technicians rely on pair coils for refrigerant isolation and clean line connections when retrofitting systems or commissioning new units. The BPC3858 addresses the critical challenge of heat loss along refrigerant lines: uninsulated or poorly insulated tubing bleeds temperature into the surrounding air, forcing compressors to work longer and harder, raising energy costs and shortening component life. A quality insulated pair coil stabilizes refrigerant temperature, cuts energy waste, and improves overall system efficiency.
The BPC3858 stands out for its triple-layer insulation system that minimises heat transfer, its UV-resistant embossed outer layer that endures direct sun and harsh outdoor weathering without cracking or degrading, and its tight copper construction with annealed tubing that exceeds AS/NZS 1571 standards. The closed-cell foam insulation prevents moisture ingress, condensation dripping, and dew-point failure. Common pain points when coils sweat or frost in high-humidity environments are now eliminated by the BPC3858's closed-cell design. Professional installers value the BPC3858 for speed of installation, complete insulation coverage without gaps, and the confidence that the tubing will perform reliably across the -40°C to 105°C operating range.
The Sparky Direct BPC3858 is not suitable for underground or burial applications, nor for pressurised hot-water heating lines; it is engineered for air-conditioning refrigerant duty only. Do not expose the coil to direct contact with solvents, oils, or sharp metallic objects during storage or installation, as the insulation can abrade or puncture.
(BPC3858)
The BPC3858 is engineered for R410A and R32 refrigerants. Do not use with older CFC or HCFC refrigerants (R22, R134a) as the pressure and chemical compatibility differ. Always verify the nameplate on your indoor and outdoor units before ordering.
Yes. The BPC3858 is well-suited to runs of 10–20 metres. Longer runs benefit from insulation to minimise heat loss; uninsulated or poorly insulated lines cause refrigerant temperature swing and compressor strain. A 20-metre roll covers most residential installations; for runs exceeding 25 metres, consult your equipment manufacturer or contact Sparky Direct for guidance.
The outer embossed layer is UV-resistant and rated to withstand direct sunlight without cracking, fading, or aging for many years. However, if the coil is stored outdoors before installation, keep it in a shaded or wrapped location; UV damage accumulates during idle time. Once installed and in use, sunlight exposure is not a concern.
The insulation is rated for -40°C to 105°C continuous operation. This covers standard air-conditioning duty from residential heat pumps in cold climates to rooftop units in hot, remote areas. The BPC3858 is not rated for thermal cycling above 105°C; check your system nameplate to confirm operating limits.
Yes. The annealed copper tubing complies with AS/NZS 1571 material and strength standards. The insulation meets EN 13501-1:2007 fire classification D-s3-d0, requiring smoke production and flammability limits suitable for commercial buildings. The pair coil is not independently certified to AS 3823 (refrigerant-line specifications) but is widely used by licensed air-conditioning contractors in compliance with AS/NZS 3000 installation work.
Yes. The copper tubing flexes and can be bent gently using a tube-bending spring or commercial bender without kinking. The insulation flexes in unison and does not crack or split. Do not kink, crush, or flatten the tubing; excessive deformation can cause joint failure or refrigerant leakage. Always bend slowly and support the tube during the bend to maintain even pressure.
The tubing ends are bare copper and accept standard refrigeration flaring (ISO 9001 single flare for R410A/R32) or swaging to match your unit's port sizes. Your HVAC contractor or equipment manual specifies the flare type and torque specs. Always use new washers and tightening to manufacturer specs to prevent leakage. The insulation wraps up to the flare; trim or slide the foam back slightly to prevent crushing during compression-fitting.
The Sparky Direct BPC3858 is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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If your order arrives damaged or is faulty, let us know within 24 hours.
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How to Request a Return
Warranty starts from Invoice Date
Domestic Use: 1 Year
Commercial Use: 1 Year
Warranty Method: Return to Sparky Direct
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Sparky Direct |
| SKU | BPC3858 |
| Barcode # | 9316114995554 |
| Package Weight | 13.550kg |
| TYPE | VALUE |
|---|---|
| Type | Air Conditioner Accessory |
$438.90 $399.00 ex. GST
$241.94 $219.95 ex. GST
$341.00 $310.00 ex. GST
$197.94 $179.95 ex. GST
