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Duct Flanges
Bolt flanges to equipment to start a run of duct. They can also create secure connections between two duct ends by mounting a flange to each end and then joining the flanges.
Steel, galvanized steel, 304 stainless steel, and aluminum flanges are also known as angle rings.
For technical drawings and 3-D models, click on a part number.
Steel, Galvanized Steel, 304 Stainless Steel, and Aluminum
Steel, Galvanized
Steel, 304 Stainless
Steel, and Aluminum
Steel, 304 Stainless
Steel, and Aluminum
Flange | Mounting | Steel | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Overall Dp. | Ht. | Thick. | Fasteners Included | No. of Holes | Hole Dia. | Connection Type | Each | |
| 3 | 3 1/16" | 1" | 1" | 1/8" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 3 1/2 | 3 9/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 4 | 4 1/16" | 1" | 1" | 1/8" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 4 1/2 | 4 9/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 5 | 5 1/16" | 1" | 1" | 1/8" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 5 1/2 | 5 9/16" | 1" | 1" | 9/64" | No | 6 | 9/32" | Press Fit | 0000000 | 00000 |
| 6 | 6 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 7 | 7 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 8 | 8 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 9 | 9 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 10 | 10 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 11 | 11 1/8" | 1 1/4" | 1 1/4" | 1/8" | No | 6 | 3/8" | Press Fit | 0000000 | 00000 |
| 12 | 12 1/8" | 1 1/2" | 1 1/2" | 1/8" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 13 | 13 1/8" | 1 1/2" | 1 1/2" | 1/8" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 14 | 14 1/8" | 1 1/2" | 1 1/2" | 1/8" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 15 | 15 1/8" | 1 1/2" | 1 1/2" | 1/8" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 16 | 16 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 17 | 17 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 18 | 18 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 8 | 7/16" | Press Fit | 0000000 | 00000 |
| 19 | 19 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 12 | 7/16" | Press Fit | 00000000 | 00000 |
| 20 | 20 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 12 | 7/16" | Press Fit | 0000000 | 00000 |
| 21 | 21 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 12 | 7/16" | Press Fit | 0000000 | 00000 |
| 22 | 22 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 12 | 7/16" | Press Fit | 0000000 | 00000 |
| 23 | 23 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 12 | 7/16" | Press Fit | 0000000 | 00000 |
| 24 | 24 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 12 | 7/16" | Press Fit | 0000000 | 00000 |
| 25 | 25 1/8" | 1 1/2" | 1 1/2" | 3/16" | No | 16 | 7/16" | Press Fit | 0000000 | 00000 |
| 26 | 26 1/8" | 2" | 2" | 3/16" | No | 16 | 7/16" | Press Fit | 0000000 | 00000 |
| 27 | 27 1/8" | 2" | 2" | 3/16" | No | 16 | 7/16" | Press Fit | 0000000 | 00000 |
| 28 | 28 1/8" | 2" | 2" | 3/16" | No | 16 | 7/16" | Press Fit | 0000000 | 00000 |
| 29 | 29 1/8" | 2" | 2" | 3/16" | No | 16 | 7/16" | Press Fit | 0000000 | 00000 |
| 30 | 30 1/8" | 2" | 2" | 3/16" | No | 16 | 7/16" | Press Fit | 0000000 | 00000 |
| 32 | 32 1/8" | 2" | 2" | 3/16" | No | 16 | 7/16" | Press Fit | 0000000 | 00000 |
| 34 | 34 1/8" | 2" | 2" | 3/16" | No | 16 | 7/16" | Press Fit | 0000000 | 00000 |
| 36 | 36 1/8" | 2" | 2" | 3/16" | No | 16 | 7/16" | Press Fit | 00000000 | 00000 |
| 38 | 38 1/8" | 2" | 2" | 3/16" | No | 24 | 7/16" | Press Fit | 00000000 | 00000 |
| 40 | 40 1/8" | 2" | 2" | 3/16" | No | 24 | 7/16" | Press Fit | 00000000 | 000000 |
| 42 | 42 1/8" | 2" | 2" | 3/16" | No | 24 | 7/16" | Press Fit | 00000000 | 000000 |
| 44 | 44 1/8" | 2" | 2" | 3/16" | No | 24 | 7/16" | Press Fit | 00000000 | 000000 |
| 46 | 46 1/8" | 2" | 2" | 3/16" | No | 24 | 7/16" | Press Fit | 00000000 | 000000 |
| 48 | 48 1/8" | 2" | 2" | 3/16" | No | 24 | 7/16" | Press Fit | 00000000 | 000000 |
| 52 | 52 1/8" | 2" | 2" | 3/16" | No | 24 | 7/16" | Press Fit | 00000000 | 000000 |
Weld-On Duct Flanges
Weld flanges to equipment to start a run of duct. They can also create secure connections between two duct ends by mounting a flange to each end and then joining the flanges. Also known as angle rings.
For technical drawings and 3-D models, click on a part number.
Flange | Steel | ||||||
|---|---|---|---|---|---|---|---|
| Duct Size | Female ID | Overall Dp. | Ht. | Thick. | Connection Type | Each | |
| 3 | 3 1/16" | 1" | 1" | 1/8" | Press Fit | 0000000 | 00000 |
| 4 | 4 1/16" | 1" | 1" | 1/8" | Press Fit | 0000000 | 00000 |
| 5 | 5 1/16" | 1" | 1" | 1/8" | Press Fit | 0000000 | 00000 |
| 6 | 6 1/8" | 1 1/4" | 1 1/4" | 1/8" | Press Fit | 0000000 | 00000 |
| 7 | 7 1/8" | 1 1/4" | 1 1/4" | 1/8" | Press Fit | 0000000 | 00000 |
| 8 | 8 1/8" | 1 1/4" | 1 1/4" | 1/8" | Press Fit | 0000000 | 00000 |
| 9 | 9 1/8" | 1 1/4" | 1 1/4" | 1/8" | Press Fit | 0000000 | 00000 |
| 10 | 10 1/8" | 1 1/4" | 1 1/4" | 1/8" | Press Fit | 0000000 | 00000 |
| 11 | 11 1/8" | 1 1/4" | 1 1/4" | 1/8" | Press Fit | 0000000 | 00000 |
| 12 | 12 1/8" | 1 1/2" | 1 1/2" | 1/8" | Press Fit | 0000000 | 00000 |
| 13 | 13 1/8" | 1 1/2" | 1 1/2" | 1/8" | Press Fit | 0000000 | 00000 |
| 14 | 14 1/8" | 1 1/2" | 1 1/2" | 1/8" | Press Fit | 0000000 | 00000 |
| 15 | 15 1/8" | 1 1/2" | 1 1/2" | 1/8" | Press Fit | 0000000 | 00000 |
| 16 | 16 1/8" | 1 1/2" | 1 1/2" | 3/16" | Press Fit | 0000000 | 00000 |
| 18 | 18 1/8" | 1 1/2" | 1 1/2" | 3/16" | Press Fit | 0000000 | 00000 |
| 20 | 20 1/8" | 1 1/2" | 1 1/2" | 3/16" | Press Fit | 0000000 | 00000 |
| 22 | 22 1/8" | 1 1/2" | 1 1/2" | 3/16" | Press Fit | 0000000 | 00000 |
| 24 | 24 1/8" | 1 1/2" | 1 1/2" | 3/16" | Press Fit | 0000000 | 00000 |
| 26 | 26 1/8" | 2" | 2" | 3/16" | Press Fit | 0000000 | 00000 |
| 28 | 28 1/8" | 2" | 2" | 3/16" | Press Fit | 0000000 | 00000 |
| 30 | 30 1/8" | 2" | 2" | 3/16" | Press Fit | 0000000 | 00000 |