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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Standard-Wall Butt-Weld Aluminum
Unthreaded Pipe Fittings
Also known as Schedule 40 fittings, these have thicker walls than our thin-wall aluminum unthreaded pipe fittings. They have beveled ends that, when flush to pipe, create a trough for a strong weld that permits maximum flow. Fittings are lightweight with good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Oil, Water
- Specifications Met: ASME B16.9
- Pipe: Use Schedule 40 aluminum
- Flanges: Use Class 125 aluminum
| Pipe Size  | Wall Thick. | Construction | Each | |
| 1/2 | 0.109" | Seamless | 000000000 | 000000 |
| 3/4 | 0.113" | Seamless | 000000000 | 00000 |
| 1 | 0.133" | Seamless | 000000000 | 00000 |
| 1 1/4 | 0.14" | Seamless | 000000000 | 00000 |
| 1 1/2 | 0.145" | Seamless | 000000000 | 00000 |
| 2 | 0.154" | Seamless | 000000000 | 00000 |
| 2 1/2 | 0.203" | Seamless | 000000000 | 000000 |
| 3 | 0.216" | Seamless | 000000000 | 000000 |
| 4 | 0.237" | Seamless | 000000000 | 000000 |
- For Use With: Air, Oil, Water
- Specifications Met: ASME B16.9
- Pipe: Use Schedule 40 aluminum
- Flanges: Use Class 125 aluminum
| Pipe Size | Wall Thick. | Construction | Each | |
| 1/2 | 0.109" | Seamless | 000000000 | 0000000 |
| 3/4 | 0.113" | Seamless | 000000000 | 000000 |
| 1 | 0.133" | Seamless | 000000000 | 00000 |
| 1 1/4 | 0.14" | Seamless | 000000000 | 000000 |
| 1 1/2 | 0.145" | Seamless | 000000000 | 00000 |
| 2 | 0.154" | Seamless | 000000000 | 00000 |
| 2 1/2 | 0.203" | Seamless | 000000000 | 000000 |
| 3 | 0.216" | Seamless | 000000000 | 000000 |
| 4 | 0.237" | Seamless | 000000000 | 000000 |
Thin-Wall Butt-Weld Aluminum Unthreaded Pipe Fittings
Also known as Schedule 10 fittings, these are the thinnest aluminum pipe fittings we offer. They have beveled ends that, when flush to pipe, create a trough for a strong weld that permits maximum flow. Fittings are lightweight and have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Oil, Water
- Specifications Met: ASTM B361, ASME B16.9
- Pipe: Use Schedule 10 aluminum
- For Use With: Air, Oil, Water
- Specifications Met: ASTM B361, ASME B16.9
- Pipe: Use Schedule 10 aluminum
| Pipe Size | Wall Thick. | Construction | Each | |
| 1/2 | 0.083" | Seamless | 0000000 | 0000000 |
| 3/4 | 0.083" | Seamless | 0000000 | 00000 |
| 1 | 0.109" | Seamless | 0000000 | 000000 |
| 1 1/4 | 0.109" | Seamless | 0000000 | 000000 |
| 1 1/2 | 0.109" | Seamless | 0000000 | 000000 |
| 2 | 0.109" | Seamless | 0000000 | 000000 |
| 2 1/2 | 0.12" | Seamless | 0000000 | 000000 |
| 3 | 0.12" | Seamless | 0000000 | 000000 |
| 4 | 0.12" | Seamless | 0000000 | 000000 |
Thick-Wall Butt-Weld Aluminum Unthreaded Pipe Fittings
Thick walls give these Schedule 80 fittings excellent strength. They have beveled ends that, when flush to pipe, create a trough for a strong weld that permits maximum flow. Fittings are aluminum, which is lightweight with good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Oil, Water
- Specifications Met: ASTM B361, ASME B16.9
- Pipe: Use Schedule 80 aluminum
| Pipe Size | Wall Thick. | Construction | Each | |
| 1/2 | 0.147" | Seamless | 0000000 | 0000000 |
| 3/4 | 0.154" | Seamless | 0000000 | 000000 |
| 1 | 0.179" | Seamless | 0000000 | 000000 |
| 1 1/4 | 0.191" | Seamless | 0000000 | 000000 |
| 1 1/2 | 0.2" | Seamless | 0000000 | 000000 |
| 2 | 0.218" | Seamless | 0000000 | 000000 |
| 2 1/2 | 0.276" | Seamless | 0000000 | 000000 |
| 3 | 0.3" | Seamless | 0000000 | 000000 |
| 4 | 0.337" | Seamless | 0000000 | 000000 |
- For Use With: Air, Oil, Water
- Specifications Met: ASTM B361, ASME B16.9
- Pipe: Use Schedule 80 aluminum
| Pipe Size | Wall Thick. | Construction | Each | |
| 1/2 | 0.147" | Seamless | 0000000 | 0000000 |
| 3/4 | 0.154" | Seamless | 0000000 | 000000 |
| 1 | 0.179" | Seamless | 0000000 | 000000 |
| 1 1/4 | 0.191" | Seamless | 0000000 | 000000 |
| 1 1/2 | 0.2" | Seamless | 0000000 | 000000 |
| 2 | 0.218" | Seamless | 0000000 | 000000 |
| 2 1/2 | 0.276" | Seamless | 0000000 | 000000 |
| 3 | 0.3" | Seamless | 0000000 | 000000 |
| 4 | 0.337" | Seamless | 0000000 | 000000 |