| Description | Abbrevation |
| Long Weld Neck Connections | LWN |
| Heavy Barrel Connections | HB |
| Intermediate Barrel Connections | I1, I2, I3 |
| Equal Barrel Connections | E |
| Super Barrel Connections | SB |
| Insert Lip Connections | Q |
| Butt Weld Stub End Connections | |
| Studding Outlets | |
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Large Diameter Flanges ASME B16.7 Series A & B |
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| Custom Products | |
| Rough Forgings | |
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Abbreviation Combinations (example) Equal Barrel with Insert Lip Connection |
EQ |