Compression Fittings For Metal Tubing
Compression fittings are commonly used with metal tubing in constructing gas handling systems using tubing. They are particularly suited to high purity, high pressure, or high vacuum applications. They need no special tools, welding, or soldering and can be made and remade repeatedly.
Please note that the tubing size designation in the ordering information below refers to the outside diameter of the tubing. Also, only the most common fittings are listed here; many other connections are available on request.
| Brass P/N | Stainless Steel P/N | Description | |
|---|---|---|---|
| Male Connectors (For connecting female pipe threads to tubing) | |||
| 2MSC2N-B | 2MSC2N-316 | 1/8" compression x 1/8" NPT male |  |
| 2MSC4N-B | 2MSC4N-316 | 1/8" compression x 1/4" NPT male | |
| 4MSC2N-B | 4MSC2N-316 | 1/4" compression x 1/8" NPT male | |
| 4MSC4N-B | 4MSC4N-316 | 1/4" compression x 1/4" NPT male | |
| 4MSC8N-B | 4MSC8N-316 | 1/4" compression x 1/2" NPT male | |
| 8MSC4N-B | 8MSC4N-316 | 1/2" compression x 1/4" NPT male | |
| 8MSC8N-B | 8MSC8N-316 | 1/2" compression x 1/2" NPT male | |
| Female Connectors (for connecting male pipe threads to tubing) | |||
| 2FSC2N-B | 2FSC2N-316 | 1/8" compression x 1/8" NPT female |  |
| 2FSC4N-B | 2FSC4N-316 | 1/8" compression x 1/4" NPT female | |
| 4FSC2N-B | 4FSC2N-316 | 1/4" compression x 1/8" NPT female | |
| 4FSC4N-B | 4FSC4N-316 | 1/4" compression x 1/4" NPT female | |
| 4FSC8N-B | 4FSC8N-316 | 1/4" compression x 1/2" NPT female | |
| 8FSC4N-B | 8FSC4N-316 | 1/2" compression x 1/4" NPT female | |
| 8FSC8N-B | 8FSC8N-316 | 1/2" compression x 1/2" NPT female | |
| Male Elbow (for connecting female pipe threads to tubing at right angles) | |||
| 2FSEL2N-B | 2MSEL2N-316 | 1/8" compression x 1/8" NPT male |  |
| 2FSEL4N-B | 2MSEL4N-316 | 1/8" compression x 1/4" NPT male | |
| 4FSEL2N-B | 4MSEL2N-316 | 1/4" compression x 1/8" NPT male | |
| 4FSEL4N-B | 4MSEL4N-316 | 1/4" compression x 1/4" NPT male | |
| Female Elbow (for connecting male pipe threads to tubing at right angles) | |||
| 2FSEL2N-B | 2FSEL2N-316 | 1/8" compression x 1/8" NPT female |  |
| 2FSEL4N-B | 2FSEL4N-316 | 1/8" compression x 1/4" NPT female | |
| 4FSEL2N-B | 4FSEL2N-316 | 1/4" compression x 1/8" NPT female | |
| 4FSEL4N-B | 4FSEL4N-316 | 1/4" compression x 1/4" NPT female | |
| Union (for joint tubing) | |||
| 2SC2-B | 2SC2-316 | 1/8" compression x 1/8" compression |  |
| 4SC4-B | 4SC4-316 | 1/4" compression x 1/4" compression | |
| Reducing Union (for joining tube of different sizes) | |||
| 4RU2-B | 4RU2-316 | 1/4" compression x 1/8" compression |  |
| 8RU4-B | 8RU4-316 | 1/2" compression x 1/4" comression | |
| Bulkhead Union (for connecting tubing through a panel or bulkhead) | |||
| 2BC2-B | 2BC2-316 | 1/8" compression x 1/8" compression |  |
| 4BC4-B | 4BC4-316 | 1/4" compression x 1/4" compression | |
| 8BC8-B | 8BC8-316 | 1/2" compression x 1/2" compression | |
| Union Elbow (for joining tubing at right angles) | |||
| 2EE2-B | 2EE2-316 | 1/8" compression x 1/8" compression |  |
| 4EE4-B | 4EE4-316 | 1/4" compression x 1/4" compression | |
| 8EE8-B | 8EE8-316 | 1/2" compression x 1/2" compression | |
| Union Tee (for joining tubing in "T" configurations) | |||
| 2ET2-B | 2ET2-316 | 1/8" compression all ends |  |
| 4ET4-B | 4ET4-316 | 1/4" compression all ends | |
| 8ET8-B | 8ET8-316 | 1/2" compression all ends | |