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.
For technical drawings and 3-D models, click on a part number.
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Mount Type | Mounting Fasteners Included | Each | |
| 5/32" | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 000000 |
| 3/16" | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 1/4" | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 5/16" | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 4mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 6mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 8mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
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.
For technical drawings and 3-D models, click on a part number.
Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.
Nickel-Plated Brass Push-to-Connect Tube Fittings for Air
- For Use With: Air, Lubricated Air
- Temperature Range: 0° to 140° F
- Tubing: Fittings with Release Ring and Fittings with no Release Type: Use with firm or hard (Durometer 95A-60D) nylon plastic, polyethylene plastic or polyurethane rubber
Fittings with Release Sleeve: Use with firm or hard (Durometer 95A-60D) polyethylene plastic or polyurethane rubber
Made of nickel-plated brass, these fittings have better corrosion resistance than unplated brass fittings. 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 or sleeve and pull the tubing out of the fitting.
Fittings with release sleeve are easier to disconnect than fittings with a release ring because they are seamless and won't collect dirt and debris.
For technical drawings and 3-D models, click on a part number.
Release Sleeve | ||||
|---|---|---|---|---|
| For Tube OD | Material | Max. Pressure | Each | |
| 1/4" | Nickel-Plated Brass | 230 psi @ 72° F | 000000000 | 000000 |
| 4mm | Nickel-Plated Brass | 230 psi @ 72° F | 000000000 | 00000 |
| 6mm | Nickel-Plated Brass | 230 psi @ 72° F | 000000000 | 00000 |
| 8mm | Nickel-Plated Brass | 230 psi @ 72° F | 000000000 | 00000 |
| 10mm | Nickel-Plated Brass | 230 psi @ 72° F | 000000000 | 00000 |
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.
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Material | Hardness Rating | Each | |
| 3/8" | Acetal Plastic | Gray | Gray | 150 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | Firm, Hard | 000000000 | 000000 |
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 |
Locking clips secure the release ring to prevent the fitting from accidentally disconnecting.
| For Tube OD | Material | Color | Pkg. Qty. | Pkg. | |
| 3/8" | Acetal Plastic | Red | 10 | 000000000 | 00000 |
Push-to-Connect Tube Fittings for Hot Drinking Water
- Temperature Range: 35° to 200° F
- Tubing: Use with hard polyethylene plastic
- Specifications Met: NSF/ANSI 51, NSF/ANSI 61
Run hot water through these fittings at temperatures up to 200° F. 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. Fittings are nylon for excellent impact and abrasion resistance.
For technical drawings and 3-D models, click on a part number.
Push-to-Connect Fittings for Plastic Tubing—Food and Beverage
- Temperature Range: 35° to 140° F
- Tubing: See table
- Specifications Met:
White Polypropylene: NSF/ANSI 51, NSF/ANSI 61
Black Polypropylene: FDA Compliant 21 CFR 176.170, NSF/ANSI 58, NSF/ANSI 372
Acetal: NSF/ANSI 51, NSF/ANSI 61
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.
Black | ||||||
|---|---|---|---|---|---|---|
| For Tube OD, mm | Material | Max. Pressure | For Tube Hardness Rating | For Tube Hardness | Each | |
| 6 | Acetal Plastic | 150 psi @ 72° F | Hard | Durometer 85D-95D | 00000000 | 00000 |
| 8 | Acetal Plastic | 150 psi @ 72° F | Hard | Durometer 85D-95D | 00000000 | 0000 |
| 10 | Acetal Plastic | 150 psi @ 72° F | Hard | Durometer 85D-95D | 00000000 | 00000 |
| 12 | Acetal Plastic | 150 psi @ 72° F | Hard | Durometer 85D-95D | 00000000 | 00000 |
Plastic Push-to-Connect Tube Fittings for Chemicals
- For Use With: Inch: Alcohol, Hydrochloric Acid, Nitric Acid, Sodium Carbonate, Sulfuric Acid
Metric: Acetic Acid, Alcohol, Arsenic Acid, Benzoic Acid, Fluoboric Acid, Sodium Carbonate, Sulfuric Acid - Temperature Range: Inch: 0° to 270° F
Metric: 32° to 175° F - Tubing: Use with hard (Durometer 55D-60D) FEP plastic
Also known as instant fittings, these chemical-resistant plastic fittings connect to tubing with a push. An internal gripping ring holds the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. Use these fittings in low-pressure applications.
PVDF fittings offer excellent chemical resistance, and can be used with hydrochloric acid and nitric acid. They withstand temperatures up to 270° F, higher than other push-to-connect fittings for chemicals. They are produced in a clean room and are bagged individually to prevent dirt and moisture from contaminating the inside. PVDF is also known as Kynar.
For technical drawings and 3-D models, click on a part number.
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 3/8" | PVDF Plastic | Black | Black | 300 psi @ 72° F | 00000000 | 000000 |