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The Copper Union (Socket/Coupling) is a reliable copper pipe fitting designed for joining two copper tubes of the same diameter in refrigeration, air conditioning, HVAC, cold room, and cooling system applications. Its straight socket-style design provides a practical solution for extending or connecting copper refrigerant piping during installation, repair, and maintenance work.
Available in a wide range of sizes from 1/4″ to 4-1/8″, this copper coupling is suitable for various refrigeration and air conditioning piping requirements, from smaller residential systems to larger commercial refrigeration and HVAC installations.
The Copper Union is commonly used by refrigeration technicians, HVAC contractors, air-conditioning installers, cold room specialists, and maintenance teams for connecting copper tubing in refrigerant piping systems.
Key Features
- Copper Union / Socket / Coupling for copper tube connection
- Designed for joining copper pipes of the same size
- Suitable for refrigeration and air conditioning systems
- Ideal for HVAC, cold room, and commercial refrigeration applications
- Wide range of connection sizes available
- Suitable for installation, replacement, servicing, and repair work
- Straight-through coupling design for convenient pipe connection
- Suitable for brazing applications
- Available under FREDDOX and KOREA brands
Available Models & Sizes
| Brand | Model | Size |
|---|---|---|
| FREDDOX | FRED-CF-CU02 | 1/4″ |
| FREDDOX | FRED-CF-CU03 | 3/8″ |
| FREDDOX | FRED-CF-CU04 | 1/2″ |
| FREDDOX | FRED-CF-CU05 | 5/8″ |
| FREDDOX | FRED-CF-CU06 | 3/4″ |
| FREDDOX | FRED-CF-CU103 | 1-3/8″ |
| FREDDOX | FRED-CF-CU105 | 1-5/8″ |
| FREDDOX | FRED-CF-CU205 | 2-5/8″ |
| KOREA | KORE-CF-CU05 | 5/8″ |
| KOREA | KORE-CF-CU06 | 3/4″ |
| KOREA | KORE-CF-CU07 | 7/8″ |
| KOREA | KORE-CF-CU101 | 1-1/8″ |
| KOREA | KORE-CF-CU105 | 1-5/8″ |
| KOREA | KORE-CF-CU201 | 2-1/8″ |
| KOREA | KORE-CF-CU401 | 4-1/8″ |
Applications
The Copper Union Socket Coupling is suitable for:
- Air conditioning systems
- Refrigeration systems
- Cold room systems
- Commercial refrigeration
- HVAC installations
- Condensing units
- Evaporator piping
- Refrigerant copper pipework
- Refrigeration system repairs and maintenance
- Copper tube extension and connection
Why Choose This Copper Union?
A dependable pipe fitting is essential for creating a proper refrigerant piping system. The Copper Union (Socket/Coupling) provides a simple and practical way to connect copper tubing of matching sizes, making it a useful component for both installation and servicing applications.
With multiple sizes available from 1/4″ through 4-1/8″, customers can select the appropriate coupling for different refrigeration and air conditioning systems. Whether used for a new installation, system modification, or replacement during servicing, this copper coupling is designed to meet the practical needs of professional HVAC and refrigeration work.
Inquiry - Copper Union (Socket/Coupling)
