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 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.
Polypropylene fittings have excellent impact and abrasion resistance. They meet NSF/ANSI standards for safe use with food. Some are also FDA compliant for indirect contact with food.
Black fittings have excellent UV resistance and are suitable for outdoor environments.
Fittings with UNS threads are also known as faucet connectors; they attach directly to a faucet threaded inlet or water line.
For technical drawings and 3-D models, click on a part number.
| For Tube OD | Thread Size  | Material | Release Ring Color | Max. Pressure | For Tube Hardness Rating | For Tube Hardness | Specifications Met | Each | |
UNS Threads | |||||||||
|---|---|---|---|---|---|---|---|---|---|
White | |||||||||
| 1/4" | 7/16"-24 | Polypropylene Plastic | White | 150 psi @ 72° F | Hard | Durometer 50D-70D | NSF/ANSI 51, NSF/ANSI 61 | 0000000 | 00000 |
| 3/8" | 7/16"-24 | Polypropylene Plastic | White | 150 psi @ 72° F | Hard | Durometer 50D-70D | NSF/ANSI 51, NSF/ANSI 61 | 0000000 | 0000 |
Black | |||||||||
| 1/4" | 7/16"-24 | Polypropylene Plastic | Black | 150 psi @ 72° F | Hard | Durometer 50D-70D | NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170 | 00000000 | 0000 |
| 5/16" | 7/16"-24 | Polypropylene Plastic | Black | 150 psi @ 72° F | Hard | Durometer 50D-70D | NSF/ANSI 58, NSF/ANSI 372, FDA Compliant 21 CFR 176.170 | 00000000 | 0000 |
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.
Fittings with UNS threads are also known as faucet connectors; they attach directly to a faucet threaded inlet or water line.
For technical drawings and 3-D models, click on a part number.
Threaded connections can be taken apart as needed for maintenance and repair.
| For Tube OD | Thread Size | Material | Color | Release Ring Color | Max. Pressure | Each | |
UNS Threads | |||||||
|---|---|---|---|---|---|---|---|
| 1/4" | 7/16"-24 | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 00000000 | 00000 |
Supported 45° Flared Fittings for Copper and Brass Tubing
- For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
- Temperature Range: -65° to 250° F
- Tubing: Use with seamless brass and copper
- Specifications Met:
Metric: SAE J512, SAE J513, UL Listed
All other fittings: SAE J512, UL Listed; except tee connectors for 1/2" tube OD
The flared end nests inside the fitting body, providing extra support to the tubing. Fittings are also known as inverted 45° flared fittings, refrigeration fittings, and SAE fittings. To assemble, place the nut (sold separately) on the tubing, flare the end of the tubing, then insert the tubing into the fitting and tighten the nut. Fittings are brass for good corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | ||||||
| 1/4" | 0.03" | 1/8 | 360 Brass | 1,400 psi @ 72° F | 00000000 | 00000 |
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | Each | |
| 1/4" | 0.03" | 360 Brass | 1,400 psi @ 72° F | 00000000 | 00000 |
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | Each | |
| 1/4" | 0.03" | 360 Brass | 1,400 psi @ 72° F | 00000000 | 000000 |
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Each | |
| 1/4" | 0.03" | 360 Brass | 1,400 psi @ 72° F | 00000000 | 000000 |
Nuts for Supported 45° Flared Fittings for Copper and Brass Tubing
- For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
- Temperature Range: -65° to 250° F
- Tubing: Use with seamless brass and copper
- Specifications Met: SAE J512, UL Listed
Use these nuts with supported 45° flared fittings to create a tight metal-to-metal seal on flared copper and brass tubing. They are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Each | |
| 1/4" | 0.03" | 360 Brass | 1,400 psi @ 72° F | 00000000 | 000000 |