HVAC Copper Adapter – Solder to Threaded Transition Fitting,C12200 wrot copper, ASME B16.22 compliant. Sweat x NPT design transitions between soldered copper tube and threaded connections. Male and female NPT options. Sizes 1/4″ to 4-1/8″ OD. Max pressure 722 psi.
Our Copper Adapter is a precision-engineered wrot copper fitting designed to transition between soldered copper tube and threaded pipe connections in air conditioning, refrigeration, and heat pump systems. It provides a reliable, leak-proof junction where a sweat (solder) connection must adapt to an NPT threaded port — commonly found on compressors, valves, filter driers, and system components.
Manufactured from high-purity C12200 phosphorus-deoxidized copper, the adapter features a sweat-end (Cup) on one side and either a Male NPT or Female NPT thread on the other. The seamless, one-piece wrot construction eliminates weld seams, reducing potential leak points in high-pressure refrigerant circuits.
| Parameter | Details |
|---|---|
| Material | C12200 Phosphorus-Deoxidized Copper (Wrot) |
| Standard | ASME B16.22 |
| Type | Adapter (Straight) |
| Connection Options | C x F (Cup x Female NPT) / C x M (Cup x Male NPT) |
| Size Range (OD) | 1/4″ – 4-1/8″ (6.35mm – 105mm) |
| Working Pressure | Up to 722 psi (at 100°F) |
| Operating Temperature | -20°F to +400°F (-29°C to +204°C) |
| Surface | Smooth, burr-free, degreased |
Solder-to-Thread Transition – Solves the mismatch between soldered copper tube and NPT threaded ports on compressors, valves, and system components without extra fittings
Male & Female NPT Options – Available in both C x M (Male NPT) and C x F (Female NPT) configurations to match any threaded connection requirement
Seamless Wrot Construction – One-piece forged design eliminates weld seams, ensuring structural integrity under high pressure and vibration
Precision Sweat End – Consistent capillary gap for reliable brazing, with precise socket depth for quick, leak-free field installation
High-Purity C12200 Copper – Excellent thermal conductivity and corrosion resistance, suitable for long-term refrigerant exposure
Degreased & Clean – No contaminants that could block capillary tubes or valves in refrigeration systems
Connecting soldered copper refrigerant lines to threaded compressor ports
Transitioning between copper tube and NPT threaded valves, filter driers, and accumulators
Refrigeration system piping for cold storage, display cases, and chillers
Heat pump and VRF/VRV system installations
Repair and modification of existing ACR piping where thread-to-solder transition is required
Connection – C x F or C x M, custom combinations available
Size – 1/4″ to 4-1/8″ OD, reducing sizes available
Material – C12200 standard; other copper grades on request
Surface – Degreased for oxygen/CO2 service (optional)
Packaging – Individual bag, bulk carton, or custom labeled packaging
Lead Time – 7–25 days for standard sizes
MOQ – Flexible, contact us for details
Samples – Available upon request
For technical datasheets, samples, or bulk pricing, contact us directly.
