| Nominal Size (in.) | RF, LJ, Large Male and Large Tongue | Small Male (3) | Small Tongue | ID of Large and Small Tongue | Large Female and Large Groove | Small Female (3) | Small Groove | ID of Large and Small Groove | Raised Face 150 and 300 Pound Standards (2) | RF, Large and Small Male and Tongue 400, 600, 900, 1500, & 2500 lb. Standards (2) | Depth of Groove or Female |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R | S | T | U | W | X | Y | Z | ||||
| 1/2 | 1.38 | 0.72 | 1.38 | 1 | 1.44 | 0.78 | 1.44 | 0.94 | 0.06 | 0.25 | 0.19 |
| 3/4 | 1.69 | 0.94 | 1.69 | 1.31 | 1.75 | 1 | 1.75 | 1.25 | 0.06 | 0.25 | 0.19 |
| 1 | 2 | 1.19 | 1.88 | 1.5 | 2.06 | 1.25 | 1.94 | 1.44 | 0.06 | 0.25 | 0.19 |
| 1 1/4 | 2.5 | 1.5 | 2.25 | 1.88 | 2.56 | 1.56 | 2.31 | 1.81 | 0.06 | 0.25 | 0.19 |
| 1 1/2 | 2.88 | 1.75 | 2.5 | 2.12 | 2.94 | 1.81 | 2.56 | 2.06 | 0.06 | 0.25 | 0.19 |
| 2 | 3.62 | 2.25 | 3.25 | 2.88 | 3.69 | 2.31 | 3.31 | 2.81 | 0.06 | 0.25 | 0.19 |
| 2 1/2 | 4.12 | 2.69 | 3.75 | 3.38 | 4.19 | 2.75 | 3.81 | 3.31 | 0.06 | 0.25 | 0.19 |
| 3 | 5 | 3.31 | 4.62 | 4.25 | 5.06 | 3.38 | 4.69 | 4.19 | 0.06 | 0.25 | 0.19 |
| 3 1/2 | 5.5 | 3.81 | 5.12 | 4.75 | 5.56 | 3.88 | 5.19 | 4.69 | 0.06 | 0.25 | 0.19 |
| 4 | 6.19 | 4.31 | 5.69 | 5.19 | 6.25 | 4.38 | 5.75 | 5.12 | 0.06 | 0.25 | 0.19 |
| 5 | 7.31 | 5.38 | 6.81 | 6.31 | 7.38 | 5.44 | 6.88 | 6.25 | 0.06 | 0.25 | 0.19 |
| 6 | 8.5 | 6.38 | 8 | 7.5 | 8.56 | 6.44 | 8.06 | 7.44 | 0.06 | 0.25 | 0.19 |
| 8 | 10.62 | 8.38 | 10 | 9.38 | 10.69 | 8.44 | 10.06 | 9.31 | 0.06 | 0.25 | 0.19 |
| 10 | 12.75 | 10.5 | 12 | 11.25 | 12.81 | 10.56 | 12.06 | 11.19 | 0.06 | 0.25 | 0.19 |
| 12 | 15 | 12.5 | 14.25 | 13.5 | 15.06 | 12.56 | 14.31 | 13.44 | 0.06 | 0.25 | 0.19 |
| 14 | 16.25 | 13.75 | 15.5 | 14.75 | 16.31 | 13.81 | 15.56 | 14.69 | 0.06 | 0.25 | 0.19 |
| 16 | 18.5 | 15.75 | 17.62 | 16.75 | 18.56 | 15.81 | 17.69 | 16.69 | 0.06 | 0.25 | 0.19 |
| 18 | 21 | 17.75 | 20.12 | 19.25 | 21.06 | 17.81 | 20.19 | 19.19 | 0.06 | 0.25 | 0.19 |
| 20 | 23 | 19.75 | 22 | 21 | 23.06 | 19.81 | 22.06 | 20.94 | 0.06 | 0.25 | 0.19 |
| 24 | 27.25 | 23.75 | 26.25 | 25.25 | 27.31 | 23.81 | 26.31 | 25.19 | 0.06 | 0.25 | 0.19 |
Lewis Liu
Hello, I am Lewis Liu, a professional sales engineer with over ten years of experience in the flange fittings industry. I am highly knowledgeable in flange selection, installation, and maintenance. I am passionate about providing customers with the best solutions to ensure their pipeline systems run smoothly, safely, and reliably.
If you have any questions or concerns regarding flange fittings for your pipelines, whether it’s about selection, material choice, specification requirements, or any other aspect, please feel free to contact me at any time. I am committed to offering professional advice and assistance to help you make informed decisions and meet your needs.
