The Style BX energized Ring Type Joints, manufactured in accordance with API 6A, are designed for use on pressurized systems up to 20,000 psi.
When correctly fitted, the style BX gasket allows virtual face to face contact of the flange faces which means that the gasket is fully trapped on both the inner and outer diameters.
All BX gaskets incorporate a pressure balance hole to ensure equalization of pressure which may be trapped in the grooves.
Designs are also available for Subsea applications
| A* (width of ring) | +0.008,-0.000 |
| D (hole size) | ± 0.02 |
| H* (height of ring) | +0.008,-0.000 |
| OD (od of ring) | +0.000,-0.005 |
| 23° (angle) | ± 1/4° |
One pressure passage hole required per ring on center line *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.
| RING NO. | PRESSURE CLASS RATINGS (PSI) | OUTSIDE DIAMETER OF RING | HEIGHT OF RING | WIDTH OF RING | HOLE SIZE | GASKET WEIGHT, lbs | |||
|---|---|---|---|---|---|---|---|---|---|
| 5000 | 10000 | 15000 | 20000 | ||||||
| NOMINAL PIPE SIZE (INCHES) | OD | H | A | D | FOR API 6BX FLANGES | ||||
| BX150 | - | - | - | - | 72.19 | 9.30 | 9.30 | 1.59 | 0.295 |
| BX151 | - | 1 13/16 | 1 13/16 | 1 13/16 | 76.40 | 9.63 | 9.63 | 1.59 | 0.337 |
| BX152 | - | 2 1/16 | 2 1/16 | 2 1/16 | 84.68 | 10.24 | 10.24 | 1.59 | 0.425 |
| BX153 | - | 2 9/16 | 2 9/16 | 2 9/16 | 100.94 | 11.38 | 11.38 | 1.59 | 0.632 |
| BX154 | - | 3 1/16 | 3 1/16 | 3 1/16 | 116.84 | 12.40 | 12.40 | 1.59 | 0.875 |
| BX155 | - | 4 1/16 | 4 1/16 | 4 1/16 | 147.96 | 14.22 | 14.22 | 1.59 | 1.22 |
| BX156 | - | 7 1/16 | 7 1/16 | 7 1/16 | 237.92 | 18.62 | 18.62 | 3.18 | 4.14 |
| BX157 | - | 9 | 9 | 9 | 294.46 | 20.98 | 20.98 | 3.18 | 6.55 |
| BX158 | - | 11 | 11 | 11 | 352.04 | 23.14 | 23.14 | 3.18 | 9.60 |
| BX159 | - | 13 5/8 | 13 5/8 | 13 5/8 | 426.72 | 25.70 | 25.70 | 3.18 | 14.41 |
| BX160 | 13 5/8 | - | - | - | 402.59 | 23.83 | 13.74 | 3.18 | 6.75 |
| BX161 | 16 3/4 | - | - | - | 491.41 | 28.07 | 16.21 | 3.18 | - |
| BX162 | 16 3/4 | 16 3/4 | 16 3/4 | - | 475.49 | 14.22 | 14.22 | 1.59 | - |
| BX163 | 18 3/4 | - | - | - | 556.16 | 30.10 | 17.37 | 3.18 | - |
| BX164 | - | 18 3/4 | 18 3/4 | - | 570.56 | 30.10 | 24.59 | 3.18 | - |
| BX165 | 21 1/4 | - | - | - | 624.71 | 32.03 | 18.49 | 3.18 | - |
| BX166 | - | 21 1/4 | - | - | 640.03 | 32.03 | 26.14 | 3.18 | - |
| BX167* | - | - | - | - | 759.36 | 35.87 | 13.11 | 1.59 | - |
| BX168† | - | - | - | - | 765.25 | 35.87 | 16.05 | 1.59 | - |
| BX169** | - | - | - | - | 173.51 | 15.85 | 12.93 | 1.59 | - |
| BX170 | - | - | - | - | 218.03 | 14.22 | 14.22 | 1.59 | - |
| BX171 | - | - | - | - | 267.44 | 14.22 | 14.22 | 1.59 | - |
| BX172 | - | - | - | - | 333.07 | 14.22 | 14.22 | 1.59 | - |
| BX303†† | - | - | - | - | 852.75 | 37.95 | 16.97 | 1.59 | - |
| RING NO. | PRESSURE CLASS RATINGS (PSI) | OUTSIDE DIAMETER OF RING | HEIGHT OF RING | WIDTH OF RING | HOLE SIZE | GASKET WEIGHT, lbs | |||
|---|---|---|---|---|---|---|---|---|---|
| 5000 | 10000 | 15000 | 20000 | ||||||
| NOMINAL PIPE SIZE (INCHES) | OD | H | A | D | FOR API 6BX FLANGES | ||||
| BX150 | - | - | - | - | 2.842 | 0.366 | 0.366 | 0.06 | 0.295 |
| BX151 | - | 1 13/16 | 1 13/16 | 1 13/16 | 3.008 | 0.379 | 0.379 | 0.06 | 0.337 |
| BX152 | - | 2 1/16 | 2 1/16 | 2 1/16 | 3.334 | 0.403 | 0.403 | 0.06 | 0.425 |
| BX153 | - | 2 9/16 | 2 9/16 | 2 9/16 | 3.974 | 0.448 | 0.448 | 0.06 | 0.632 |
| BX154 | - | 3 1/16 | 3 1/16 | 3 1/16 | 4.600 | 0.488 | 0.488 | 0.06 | 0.875 |
| BX155 | - | 4 1/16 | 4 1/16 | 4 1/16 | 5.825 | 0.560 | 0.560 | 0.06 | 1.22 |
| BX156 | - | 7 1/16 | 7 1/16 | 7 1/16 | 9.367 | 0.733 | 0.733 | 0.12 | 4.14 |
| BX157 | - | 9 | 9 | 9 | 11.593 | 0.826 | 0.826 | 0.12 | 6.55 |
| BX158 | - | 11 | 11 | 11 | 13.860 | 0.911 | 0.911 | 0.12 | 9.60 |
| BX159 | - | 13 5/8 | 13 5/8 | 13 5/8 | 16.800 | 1.012 | 1.012 | 0.12 | 14.41 |
| BX160 | 13 5/8 | - | - | - | 15.850 | 0.938 | 0.541 | 0.12 | 6.75 |
| BX161 | 16 3/4 | - | - | - | 19.347 | 1.105 | 0.638 | 0.12 | - |
| BX162 | 16 3/4 | 16 3/4 | 16 3/4 | - | 18.720 | 0.560 | 0.560 | 0.06 | - |
| BX163 | 18 3/4 | - | - | - | 21.896 | 1.185 | 0.684 | 0.12 | - |
| BX164 | - | 18 3/4 | 18 3/4 | - | 22.463 | 1.185 | 0.968 | 0.12 | - |
| BX165 | 21 1/4 | - | - | - | 24.595 | 1.261 | 0.728 | 0.12 | - |
| BX166 | - | 21 1/4 | - | - | 25.198 | 1.261 | 1.029 | 0.12 | - |
| BX167* | - | - | - | - | 29.896 | 1.412 | 0.516 | 0.06 | - |
| BX168† | - | - | - | - | 30.128 | 1.412 | 0.632 | 0.06 | - |
| BX169** | - | - | - | - | 6.831 | 0.624 | 0.509 | 0.06 | - |
| BX170 | - | - | - | - | 8.584 | 0.560 | 0.560 | 0.06 | - |
| BX171 | - | - | - | - | 10.529 | 0.560 | 0.560 | 0.06 | - |
| BX172 | - | - | - | - | 13.113 | 0.560 | 0.560 | 0.06 | - |
| BX303†† | - | - | - | - | 33.573 | 1.494 | 0.668 | 0.06 | - |
