How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Push-to-Connect Tube Fittings for Air
- Temperature Range: 0° to 170° F, except polybutylene plastic fittings are 32° to 140° F
- Tubing: Use with firm (Durometer 95A-45D) polyethylene plastic or polyurethane rubber
- Specifications Met: ISO 14743, except cartridges and polybutylene plastic fittings
Insert tubing into these fittings and an internal gripping ring and O-ring hold the tubing tight. They are also known as instant fittings. To disconnect, push on the release ring and pull the tubing out of the fitting. Fittings have good corrosion resistance. Use them in low-pressure applications.
Identification rings (sold separately) snap over the release ring so you can color-code your lines.
Clips (sold separately) align and organize your tubing and fittings.
BSPP and UN/UNF (SAE Straight) male threads have a gasket to protect against leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
Use plugs to close off unused manifold holes.
Release Ring | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Inlets | Pipe Size  | Number of Outlets | For Tube OD | Material | Material | Color | Max. Pressure | Mount Type | Mounting Fasteners Included | Each | |
NPT Threads | |||||||||||
| 2 | 1/4 | 8 | 1/8" | Aluminum | Plastic | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 0000000 |
| 2 | 1/4 | 8 | 5/32" | Aluminum | Plastic | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 000000 |
| 2 | 1/4 | 8 | 1/4" | Aluminum | Plastic | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 000000 |
| 2 | 3/8 | 6 | 3/8" | Aluminum | Plastic | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 000000 |
BSPP Threads | |||||||||||
| 2 | 1/4 | 8 | 4mm | Aluminum | Plastic | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 2 | 1/4 | 8 | 6mm | Aluminum | Plastic | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 2 | 3/8 | 6 | 8mm | Aluminum | Plastic | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 2 | 1/2 | 6 | 10mm | Aluminum | Plastic | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 000000 |
| 2 | 1/2 | 6 | 12mm | Aluminum | Plastic | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 000000 |
Brass Push-to-Connect Tube Fittings for Air
- Temperature Range: 0° to 200° F, except Tube Stem Straight Connectors are 0° to 150° F, and Plugs are 0° to 170° F
- Tubing: See table
These fittings offer good protection against corrosive environments. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
For Tube | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Inlets | Pipe Size | Number of Outlets | For Tube OD | Body Material | Release Ring Material | Max. Pressure | Material | Hardness Rating | Mount Type | Mounting Fasteners Included | Each | |
NPTF Threads | ||||||||||||
| 2 | 3/8 | 4 | 1/4" | Anodized Aluminum | Brass | 150 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | Hard | Screw On | No | 0000000 | 000000 |
| 2 | 3/8 | 4 | 3/8" | Anodized Aluminum | Brass | 150 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | Hard | Screw On | No | 0000000 | 00000 |
| 2 | 3/8 | 6 | 1/4" | Anodized Aluminum | Brass | 150 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | Hard | Screw On | No | 0000000 | 000000 |
| 2 | 3/8 | 8 | 1/4" | Anodized Aluminum | Brass | 150 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | Hard | Screw On | No | 0000000 | 000000 |