Style RX Gasket Suitable for Flange Standards
Pipe Sizes & Pressure Ratings for Style RX Gaskets in Flange Application
| Ring Number | Pressure Classes, API 6B | |||
| 720-960 and 2000 [Note (1)] | 2900[Note (1)] | 3000 | 5000 | |
| RX-20 | 1-1/2 | ... | 1-1/2 | 1-1/2 |
| RX-23 | 2 | ... | ... | ... |
| RX-24 | ... | ... | 2 | 2 |
| RX-25 | ... | ... | ... | 3-1/8 |
| RX-26 | 2-1/2 | ... | ... | ... |
| RX-27 | ... | ... | 2-1/2 | 2-1/2 |
| RX-31 | 3 | ... | 3 | ... |
| RX-35 | ... | ... | ... | 3 |
| RX-37 | 4 | ... | 4 | ... |
| RX-39 | ... | ... | ... | 4 |
| RX-41 | 5 | ... | 5 | ... |
| RX-44 | ... | ... | ... | 5 |
| RX-45 | 6 | ... | 6 | ... |
| RX-46 | ... | ... | ... | 6 |
| RX-47 | ... | ... | ... | 8(2) |
| RX-49 | 8 | ... | 8 | ... |
| RX-50 | ... | ... | ... | 8 |
| RX-53 | 10 | ... | 10 | ... |
| RX-54 | ... | ... | ... | 10 |
| RX-57 | 12 | ... | 12 | ... |
| RX-63 | ... | ... | ... | 14 |
| RX-65 | 16 | ... | ... | ... |
| RX-66 | ... | ... | 16 | ... |
| RX-69 | 18 | ... | ... | ... |
| RX-70 | ... | ... | 18 | ... |
| RX-73 | 20 | ... | ... | ... |
| RX-74 | ... | ... | 20 | ... |
| RX-82 | ... | 1 | ... | ... |
| RX-84 | ... | 1-1/2 | ... | ... |
| RX-85 | ... | 2 | ... | ... |
| RX-86 | ... | 2-1/2 | ... | ... |
| RX-87 | ... | 3 | ... | ... |
| RX-88 | ... | 4 | ... | ... |
| RX-89 | ... | 3-1/2 | ... | ... |
| RX-90 | ... | 5 | ... | ... |
| RX-91 | ... | 10 | ... | ... |
| RX-99 | 8(2) | ... | ... | ... |
| RX-201 | ... | ... | 8(2) | 1-3/8 |
| RX-205 | ... | ... | ... | 1-13/16 |
| RX-210 | ... | ... | ... | 2-9/16 |
| RX-215 | ... | ... | ... | 4-1/16 |
NOTES:
(1) Class 720, 960, and 2900 flanges to API 6B are obsolete. Data are for information only.
(2) Crossover flange connection.
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