Brass Fittings
Brass Compression Straight Coupling
Straight compression coupling for joining copper tubes without soldering or brazing.
| Material | CW617N / forged brass |
| Finish | Natural or nickel-plated brass |
| Connection | Flare, compression or threaded |
| Packaging | Bag or carton by size |
| Use | Copper tube service connections |
| Fitting type | Brass Compression Straight Coupling |
| Size range | Common 1/4" to 3/4" flare or 8 mm to 76 mm compression sizes |
Dimensional Data
Technical Specifications
| Nominal Size | OD (in) | Wall Thickness (in) | Weight (lb/ft) | Max Pressure (psi) |
|---|---|---|---|---|
| 8 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 10 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 12 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 14 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 15 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 16 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 18 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 22 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 28 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 35 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 42 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 54 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
| 76 mm | Compression nut + olive | PN20/PN25 range | EN 1254-2 | CW617N brass |
* Values are nominal and subject to manufacturing tolerances. Consult GCM technical support for specific temperature or pressure applications.
Where It’s Used
Key Applications
Brass Compression Straight Coupling for copper tube connection, service repair and HVAC/refrigeration installations. Size rows include tube size, connection format, pressure/service note and material.
Refrigeration service fittings
Split AC and VRF connections
Copper water pipe connections
Mechanical service repairs
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