The Style RX is an adaptation of the standard Style R which energizes on assembly. The RX is designed to fit the same groove design as a standard Style R, making the joints interchangeable.
Consideration should be given to the difference in finished make-up distance.
The modified design uses an energizing on assembly effect which improves the efficiency of the seal.
Designs are also available for Subsea applications.
| A* (width of ring) | +0.008,-0.000 |
| H* (height of ring) | +0.008,-0.000 |
| OD (od of ring) | +0.020,-0.000 |
| 23° (angle) | ±1/2° |
*A plus tolerance of 0.008 inches for width
‘A’ and height ‘H’ is permitted, provided the variation in width or height does not exceed 0.004 inches throughout its entire circumference.
| NO. | PRESSURE CLASS RATINGS | PITCH DIAMETER OF RING | OUTSIDE DIAMETER OF RING | WIDTH OF RING | HEIGHT OF RING | WEIGHTS, lbs | ||
|---|---|---|---|---|---|---|---|---|
| 2000 | 3000 | 5000 | ||||||
| NOMINAL PIPE SIZE (INCHES) | P | OD | A | H | ||||
| RX20 | - | - | - | 68.26 | 76.20 | 8.73 | 19.05 | 0.527 |
| RX20† | - | - | 2 1/16 | 68.26 | 76.20 | 8.73 | 19.05 | 0.527 |
| RX23 | 2 1/16 | - | - | 82.55 | 93.27 | 11.91 | 25.40 | 1.15 |
| RX24 | - | 2 1/16 | 2 1/16 | 95.25 | 105.97 | 11.91 | 25.40 | 1.33 |
| RX25† | - | - | 3 1/8 | 101.60 | 109.54 | 8.73 | 19.05 | 1.42 |
| RX26 | 2 9/16 | - | - | 101.60 | 111.92 | 11.91 | 25.40 | 1.50 |
| RX27 | - | 2 9/16 | 2 9/16 | 107.95 | 118.27 | 11.91 | 25.40 | 1.73 |
| RX31 | 3 1/8 | 3 1/8 | - | 123.83 | 134.54 | 11.91 | 25.40 | 1.91 |
| RX35 | - | - | 3 1/8 | 136.53 | 147.24 | 11.91 | 25.40 | 2.09 |
| RX37 | 4 1/16 | 4 1/16 | - | 149.23 | 159.94 | 11.91 | 25.40 | 2.27 |
| RX39 | - | - | 4 1/16 | 161.93 | 172.64 | 11.91 | 25.40 | 2.54 |
| RX41 | - | - | - | 180.98 | 191.69 | 11.91 | 25.40 | 2.72 |
| RX44 | - | - | - | 193.68 | 204.39 | 11.91 | 25.40 | 2.96 |
| RX45 | 7 1/16 | 7 1/16 | - | 211.14 | 221.84 | 11.91 | 25.40 | 3.66 |
| RX46 | - | - | 7 1/16 | 211.14 | 222.25 | 13.49 | 28.58 | 8.56 |
| RX47 | - | - | - | 228.60 | 245.27 | 19.84 | 41.28 | 3.79 |
| RX49 | 9 | 9 | - | 269.88 | 280.59 | 11.91 | 25.40 | 5.36 |
| RX50 | - | - | 9 | 269.88 | 283.37 | 16.67 | 31.75 | 4.56 |
| RX53 | 11 | 11 | - | 323.85 | 334.57 | 11.91 | 25.40 | 6.45 |
| RX54 | - | - | 11 | 323.85 | 337.34 | 16.67 | 31.75 | 5.36 |
| RX57 | 13 5/8 | 13 5/8 | - | 381.00 | 391.72 | 11.91 | 25.40 | 26.40 |
| RX63 | - | - | - | 419.10 | 441.72 | 26.99 | 50.80 | 6.63 |
| RX65 | 16 3/4 | - | - | 469.90 | 480.62 | 11.91 | 25.40 | 9.39 |
| RX66 | - | 16 3/4 | - | 469.90 | 457.99 | 16.67 | 31.75 | 7.52 |
| RX69 | - | - | - | 533.40 | 544.12 | 11.91 | 25.40 | 20.14 |
| RX70 | - | - | - | 533.40 | 550.07 | 19.84 | 41.28 | 11.63 |
| RX73 | 21 1/4 | - | - | 584.20 | 596.11 | 13.49 | 31.75 | 22.10 |
| RX74 | - | 20 3/4 | - | 584.20 | 600.87 | 19.84 | 41.28 | 0.790 |
| RX82 | - | - | - | 57.15 | 67.87 | 11.91 | 25.40 | 0.880 |
| RX84 | - | - | - | 63.50 | 74.22 | 11.91 | 25.40 | 0.880 |
| RX85 | - | - | - | 79.38 | 90.09 | 13.49 | 25.40 | 1.79 |
| RX86 | - | - | - | 90.49 | 103.58 | 15.08 | 28.58 | 1.98 |
| RX87 | - | - | - | 100.01 | 113.11 | 15.08 | 28.58 | 3.22 |
| RX88 | - | - | - | 123.83 | 139.30 | 17.46 | 31.75 | 2.98 |
| RX89 | - | - | - | 114.30 | 129.78 | 18.26 | 31.75 | 6.82 |
| RX90 | - | - | - | 155.58 | 174.63 | 19.84 | 44.45 | 17.10 |
| RX91 | - | - | - | 260.35 | 286.94 | 30.16 | 45.24 | 3.31 |
| * RX99 | - | - | - | 234.95 | 245.67 | 11.91 | 25.40 | - |
| RX201† | - | - | 1 3/8 | 46.04 | 51.46 | 5.74 | 11.30 | - |
| * RX205† | - | - | 1 13/16 | 57.15 | 62.31 | 5.56 | 11.10 | - |
| * RX210† | - | - | 2 9/16 | 88.90 | 97.63 | 9.53 | 19.05 | - |
| * RX215 | - | - | 4 1/16 | 130.18 | 140.89 | 11.91 | 25.40 | - |
| * RX215† | - | - | 4 1/16 x 4 1/4 | 130.18 | 140.89 | 11.91 | 25.40 | |
| STANDARDS FOR RING JOINT GASKETS USED WITH FLANGES | ||
|---|---|---|
| Ring Joint Gaskets Style | Ring Joint Gaskets Standard | Flange Standard |
| R | ASME B 16.20 API 6A | ASME B 16.5 ASME B 16.47 series A |
| RX | ASME B 16.20 API 6A | API 6B |
| BX | API 6A | API 6BX |
