Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
Aluminum Quick-Connect Pipe Fittings for Compressed Air
Twist these fittings onto aluminum pipe for quick, sealed connections—no threading, soldering, or welding necessary. Use them to build a compressed air system in half the time it would take to build a copper or steel system. Also known as Unipipe fittings, they’re part of a quick-connect system that’s compatible with pipe from Unipipe, Transair, and Infinity.
Finger tighten the collar on the end of these fittings, then use a wrench for the final quarter turn. The inside of these fittings has a compression ring and O-ring to seal against the pipe. They’re easy to take apart as needed to modify your setup.
Choose fittings with a blue or gray collar for easy identification. Fittings with a blue collar are often used for compressed air systems. Fittings with a gray collar are often used for vacuum systems.



- For Use With: Air, Coolant, Nitrogen, Oil
- Temperature Range: 0° to 210° F
- Specifications Met: ASME B31.1, ASME B31.3, ASME B31.9
- Pipe Nipples and Pipe: Use Quick-Disconnect Aluminum
Fittings with outlets supply air where it’s needed using ¼ universal quick-disconnect couplings. They're compatible with Industrial, ARO, or European plugs. Connect them to a saddle tap tee anywhere along your pipeline. Each outlet also has a ¼ NPT port for draining the line or attaching a pressure gauge. Connect to strut channel with a strut-mount adapter (sold separately). Do not use them in vacuum applications.
Adapters | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mounting Holes | Valve Handles | Strut Channel Adapters | ||||||||||||
| For Pipe OD (A) | Coupling Size (B) | Material | Color | Max. Pressure | Mounting Fasteners Included | Dia., mm | No. of | Includes | Each | Each | Each | |||
Blue Collar | ||||||||||||||
| 3/4" (20 mm) | 1/4 | Epoxy-Coated 6061 Aluminum | Black | 230 psi @ 72° F | No | 6 | 4 | Valve | 5314N55 | 0000000 | 5314N74 | 000000 | 5314N59 | 000000 |
| 1" (25 mm) | 1/4 | Epoxy-Coated 6061 Aluminum | Black | 230 psi @ 72° F | No | 6 | 4 | Valve | 5314N56 | 000000 | 5314N75 | 00000 | 5314N59 | 00000 |
Gray Collar | ||||||||||||||
| 3/4" (20 mm) | 1/4 | Epoxy-Coated 6061 Aluminum | Black | 230 psi @ 72° F | No | 6 | 4 | Valve | 5314N128 | 000000 | 5314N74 | 00000 | 5314N59 | 00000 |
| 1" (25 mm) | 1/4 | Epoxy-Coated 6061 Aluminum | Black | 230 psi @ 72° F | No | 6 | 4 | Valve | 5314N129 | 000000 | 5314N75 | 00000 | 5314N59 | 00000 |



- For Use With: Air, Coolant, Nitrogen, Oil
- Temperature Range: 0° to 210° F
- Specifications Met: ASME B31.1, ASME B31.3, ASME B31.9
- Pipe Nipples and Pipe: Use Quick-Disconnect Aluminum
Fittings with outlets supply air where it’s needed using ¼ universal quick-disconnect couplings. They're compatible with Industrial, ARO, or European plugs. Connect them to a saddle tap tee anywhere along your pipeline. Each outlet also has a ¼ NPT port for draining the line or attaching a pressure gauge. Connect to strut channel with a strut-mount adapter (sold separately). Do not use them in vacuum applications.
Adapters | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mounting Holes | Valve Handles | Strut Channel Adapters | ||||||||||||
| For Pipe OD (A) | Coupling Size (B) | Material | Color | Max. Pressure | Mounting Fasteners Included | Dia., mm | No. of | Includes | Each | Each | Each | |||
Blue Collar | ||||||||||||||
| 3/4" (20 mm) | 1/4 | Epoxy-Coated 6061 Aluminum | Black | 230 psi @ 72° F | No | 6 | 4 | Valve | 5314N57 | 0000000 | 5314N74 | 000000 | 5314N59 | 000000 |
| 1" (25 mm) | 1/4 | Epoxy-Coated 6061 Aluminum | Black | 230 psi @ 72° F | No | 6 | 4 | Valve | 5314N58 | 000000 | 5314N75 | 00000 | 5314N59 | 00000 |
Gray Collar | ||||||||||||||
| 3/4" (20 mm) | 1/4 | Epoxy-Coated 6061 Aluminum | Black | 230 psi @ 72° F | No | 6 | 4 | Valve | 5314N131 | 000000 | 5314N74 | 00000 | 5314N59 | 00000 |
| 1" (25 mm) | 1/4 | Epoxy-Coated 6061 Aluminum | Black | 230 psi @ 72° F | No | 6 | 4 | Valve | 5314N132 | 000000 | 5314N75 | 00000 | 5314N59 | 00000 |


- For Use With: Air, Coolant, Nitrogen, Oil
- Temperature Range: 0° to 210° F
- Seal Material: PTFE Plastic
Connectors | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Overall | Replacement Handles | ||||||||
| For Pipe OD | Ht., mm | Lg., mm | Color | Body Material | Max. Pressure | Each | Each | ||
Blue Collar | |||||||||
| 3/4" (20 mm) | 73 | 131 | Black | Steel | 230 psi @ 72° F | 5314N48 | 000000 | 5314N74 | 000000 |
| 1" (25 mm) | 87 | 150 | Black | Steel | 230 psi @ 72° F | 5314N49 | 00000 | 5314N75 | 00000 |
| 1 1/2" (40 mm) | 121 | 213 | Black | Steel | 230 psi @ 72° F | 5314N51 | 000000 | 5314N76 | 00000 |
Gray Collar | |||||||||
| 3/4" (20 mm) | 73 | 131 | Black | Steel | 230 psi @ 72° F | 5314N122 | 00000 | 5314N74 | 00000 |
| 1" (25 mm) | 87 | 150 | Black | Steel | 230 psi @ 72° F | 5314N123 | 00000 | 5314N75 | 00000 |
| 1 1/2" (40 mm) | 121 | 213 | Black | Steel | 230 psi @ 72° F | 5314N124 | 000000 | 5314N76 | 00000 |


- For Use With: Air, Coolant, Nitrogen, Oil
- Temperature Range: 0° to 210° F
- Seal Material: PTFE Plastic
Threaded connections can be taken apart as needed for maintenance and repair.
Adapters | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Overall | Replacement Handles | |||||||||
| For Pipe OD (A) | Pipe Size (B) | Ht., mm | Lg., mm | Color | Body Material | Max. Pressure | Each | Each | ||
Blue Collar | ||||||||||
NPT Threads | ||||||||||
| 3/4" (20 mm) | 1/2 | 73 | 131 | Black | Steel | 230 psi @ 72° F | 5314N52 | 000000 | 5314N74 | 000000 |
| 1" (25 mm) | 3/4 | 87 | 150 | Black | Steel | 230 psi @ 72° F | 5314N53 | 00000 | 5314N75 | 00000 |
| 1 1/2" (40 mm) | 1 1/4 | 121 | 213 | Black | Steel | 230 psi @ 72° F | 5314N54 | 000000 | 5314N76 | 00000 |
Gray Collar | ||||||||||
NPT Threads | ||||||||||
| 3/4" (20 mm) | 1/2 | 73 | 131 | Black | Steel | 230 psi @ 72° F | 5314N125 | 00000 | 5314N74 | 00000 |
| 1" (25 mm) | 3/4 | 87 | 150 | Black | Steel | 230 psi @ 72° F | 5314N126 | 00000 | 5314N75 | 00000 |
| 1 1/2" (40 mm) | 1 1/4 | 121 | 213 | Black | Steel | 230 psi @ 72° F | 5314N127 | 000000 | 5314N76 | 00000 |

Use measuring tools to mark your pipe’s proper insertion depth so you know if it’s inserted far enough into the fitting.
| Max. Dp. Measured, mm | Lg., mm | Wd., mm | Material | Each | |
| 160 | 224 | 39 | Plastic | 5314N77 | 000000 |


























