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 Drinking Water
- Temperature Range: 35° to 150° F
- Tubing: See table
- Specifications Met: NSF/ANSI 61
Made of moisture-resistant acetal, these fittings won't absorb water and lose strength, even in high-humidity 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. All meet NSF/ANSI 61 for use in drinking water systems.
For technical drawings and 3-D models, click on a part number.
Caps fit over a tube stem end of a fitting or a piece of tubing.
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Material | Hardness Rating | Each | |
| 1/4" | Acetal Plastic | Gray | Gray | 230 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | Firm, Hard | 000000000 | 00000 |
| 3/8" | Acetal Plastic | Gray | Gray | 150 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | Firm, Hard | 000000000 | 0000 |
| 12mm | Acetal Plastic | Black | Black | 150 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | __ | 00000000 | 0000 |
| 18mm | Acetal Plastic | Black | Black | 150 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | __ | 00000000 | 0000 |
| 22mm | Acetal Plastic | Black | Black | 150 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | __ | 00000000 | 0000 |
Plugs insert into the push-to-connect end of a fitting.
| Tube Stem OD | Material | Color | Max. Pressure | Pkg. Qty. | Pkg. | |
| 5/32" | Acetal Plastic | Gray | 230 psi @ 72° F | 10 | 00000000 | 00000 |
| 3/16" | Acetal Plastic | Gray | 230 psi @ 72° F | 10 | 00000000 | 0000 |
| 1/4" | Acetal Plastic | Gray | 230 psi @ 72° F | 10 | 00000000 | 0000 |
| 5/16" | Acetal Plastic | Gray | 230 psi @ 72° F | 10 | 00000000 | 00000 |
| 3/8" | Acetal Plastic | Gray | 150 psi @ 72° F | 10 | 00000000 | 00000 |
| 1/2" | Acetal Plastic | Gray | 150 psi @ 72° F | 5 | 00000000 | 00000 |
| 4mm | Acetal Plastic | Red | 230 psi @ 72° F | 1 | 00000000 | 000 |
| 5mm | Acetal Plastic | Red | 230 psi @ 72° F | 1 | 00000000 | 000 |
| 6mm | Acetal Plastic | Red | 230 psi @ 72° F | 1 | 00000000 | 0000 |
| 8mm | Acetal Plastic | Red | 230 psi @ 72° F | 1 | 00000000 | 0000 |
| 10mm | Acetal Plastic | Red | 150 psi @ 72° F | 1 | 00000000 | 0000 |
| 12mm | Acetal Plastic | Red | 150 psi @ 72° F | 1 | 00000000 | 0000 |
Tube supports are recommended if you want to use fittings with soft nylon, polyethylene, and PVC tubing to prevent the tube from collapsing.
For Tube | Tube Support | |||||||
|---|---|---|---|---|---|---|---|---|
| OD | ID | Material | Color | Max. Pressure | Pkg. Qty. | Environment | Pkg. | |
| 3/8" | 5/16" | Acetal Plastic | Gray | 150 psi @ 72° F | 10 | Food Industry | 000000000 | 00000 |
Push-to-Connect Fittings for Food and Beverage
- Temperature Range: 35° to 140° F
- Tubing: See table
- Specifications Met: See table
Also known as instant fittings, these connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect fittings with a release ring, push on the release ring and pull the tubing out of the fitting.
Acetal fittings resist moisture, so they won’t soften and lose strength in humid environments. They meet NSF/ANSI 51 for safe use with food and NSF/ANSI 61 for safe use with drinking water.
Black fittings have excellent UV resistance and are suitable for outdoor environments.
For technical drawings and 3-D models, click on a part number.
Plugs insert into the push-to-connect end of another fitting.
| Tube Stem OD | Material | Max. Pressure | Specifications Met | Each | |
Black | |||||
|---|---|---|---|---|---|
| 4mm | Acetal Plastic | 150 psi @ 72° F | NSF/ANSI 51, NSF/ANSI 61 | 00000000 | 00000 |
| 5mm | Acetal Plastic | 150 psi @ 72° F | NSF/ANSI 51, NSF/ANSI 61 | 00000000 | 000 |
| 6mm | Acetal Plastic | 150 psi @ 72° F | NSF/ANSI 51, NSF/ANSI 61 | 00000000 | 000 |
| 8mm | Acetal Plastic | 150 psi @ 72° F | NSF/ANSI 51, NSF/ANSI 61 | 00000000 | 0000 |
| 10mm | Acetal Plastic | 150 psi @ 72° F | NSF/ANSI 51, NSF/ANSI 61 | 00000000 | 0000 |
| 12mm | Acetal Plastic | 150 psi @ 72° F | NSF/ANSI 51, NSF/ANSI 61 | 00000000 | 0000 |