Style RX is a pressure-energized adaptation of the standard Style R gasket. The RX is designed to fit the same groove design as a standard Style R, making the joints interchangeable. The modified design uses a pressure-energized effect that improves the efficiency of the seal as the internal pressure of the system increases.
Tolerances: ( Inches)
Width of Ring ………………………………….+0.008,-0.000
Height of Ring …………………………………+0.008,-0.000
(A plus tolerance of 0.008 inches for width and height is permitted, provided the variation in width or height does not exceed 0.004 inches throughout its entire circumference)
OD of Ring ……………………………………..±0.020,-0.000
Angle of 23°……………………………………..±1/2°
Hole diameter shall be as follows:
RX82 through RX85………………………….0.06”
RX86 and RX87………………………………..0.09”
Rings RX88 through RX91………………….0.12”
NOTE: Only Rings RX82 through RX91 have a pressure passage hole through the cross section. Center line of hole is located on the mid-point of the width flat.
| STYLE RX RING JOINT GASKET DIMENSION TABLE |
|
RING NO.
|
PRESSURE CLASS RATINGS ( psi ) |
Pitch Diameter of Ring
|
Outside Diameter of Ring
|
Width of
Ring
|
Height of Ring
|
Gasket Weight lbs.
for API 6BX
|
| 2000 |
3000 |
5000 |
| Nominal Pipe Size |
|
|
|
|
P
|
OD
|
A
|
H
|
|
|
RX20
|
– |
– |
– |
2.688
|
3.000
|
0.344
|
0.750
|
0.527
|
|
RX20?
|
|
– |
2 1/16 |
2.688
|
3.000
|
0.344
|
0.750
|
0.527
|
|
RX23
|
2 1/16 |
– |
– |
3.250
|
3.672
|
0.469
|
1.000
|
1.15
|
|
RX24
|
|
2 1/16 |
2 1/16 |
3.750
|
4.172
|
0.469
|
1.000
|
1.33
|
|
RX25?
|
– |
– |
3 1/8 |
4.000
|
4.313
|
0.344
|
0.750
|
1.42
|
|
RX26
|
2 9/16 |
– |
– |
4.000
|
4.406
|
0.469
|
1.000
|
1.50
|
|
RX27
|
|
2 9/16 |
2 9/16 |
4.250
|
4.656
|
0.469
|
1.000
|
1.73
|
|
RX31
|
3 1/8 |
3 1/8 |
– |
4.875
|
5.297
|
0.469
|
1.000
|
1.91
|
|
RX35
|
– |
– |
3 1/8 |
5.375
|
5.797
|
0.469
|
1.000
|
2.09
|
|
RX37
|
4 1/16 |
4 1/16 |
– |
5.875
|
6.297
|
0.469
|
1.000
|
2.27
|
|
RX39
|
– |
– |
4 1/16 |
6.375
|
6.797
|
0.469
|
1.000
|
2.54
|
|
RX41
|
– |
– |
– |
7.125
|
7.547
|
0.469
|
1.000
|
2.72
|
|
RX44
|
– |
– |
– |
7.625
|
8.047
|
0.469
|
1.000
|
2.96
|
|
RX45
|
7 1/16 |
7 1/16 |
– |
8.313
|
8.734
|
0.469
|
1.000
|
3.66
|
|
RX46
|
– |
– |
7 1/16 |
8.313
|
8.750
|
0.531
|
1.125
|
8.56
|
|
RX47
|
– |
– |
– |
9.000
|
9.656
|
0.781
|
1.625
|
3.79
|
|
RX49
|
9 |
9 |
– |
10.625
|
11.047
|
0.469
|
1.000
|
5.36
|
|
RX50
|
– |
– |
9 |
10.625
|
11.156
|
0.656
|
1.250
|
4.56
|
|
RX53
|
11 |
11 |
– |
12.750
|
13.172
|
0.469
|
1.000
|
6.45
|
|
RX54
|
– |
– |
11 |
12.750
|
13.281
|
0.656
|
1.250
|
5.36
|
|
RX57
|
13 5/8 |
13 5/8 |
– |
15.000
|
15.422
|
0.469
|
1.000
|
26.40
|
|
RX63
|
– |
– |
– |
16.500
|
17.391
|
1.063
|
2.000
|
6.63
|
|
RX65
|
16 3/4 |
– |
– |
18.500
|
18.922
|
0.469
|
1.000
|
9.39
|
|
RX66
|
– |
16 3/4 |
– |
18.500
|
19.031
|
0.656
|
1.250
|
7.52
|
|
RX69
|
– |
– |
– |
21.000
|
21.422
|
0.469
|
1.000
|
20.14
|
|
RX70
|
– |
– |
– |
21.000
|
21.656
|
0.781
|
1.625
|
11.63
|
|
RX73
|
21 1/4 |
– |
– |
23.000
|
23.469
|
0.531
|
1.250
|
22.10
|
|
RX74
|
– |
20 3/4 |
– |
23.000
|
23.656
|
0.781
|
1.625
|
0.790
|
|
RX82
|
– |
– |
– |
2.250
|
2.672
|
0.469
|
1.000
|
0.880
|
|
RX84
|
– |
– |
– |
2.500
|
2.922
|
0.469
|
1.000
|
0.880
|
|
RX85
|
– |
– |
– |
3.125
|
3.547
|
0.531
|
1.000
|
1.79
|
|
RX86
|
– |
– |
– |
3.563
|
4.078
|
0.594
|
1.125
|
1.98
|
|
RX87
|
|
– |
– |
3.938
|
4.453
|
0.594
|
1.125
|
3.22
|
|
RX88
|
– |
– |
– |
4.875
|
5.484
|
0.688
|
1.250
|
2.98
|
|
RX89
|
– |
– |
– |
4.500
|
5.109
|
0.719
|
1.250
|
6.82
|
|
RX90
|
– |
– |
– |
6.125
|
6.875
|
0.781
|
1.750
|
17.10
|
|
RX91
|
– |
– |
– |
10.250
|
11.297
|
1.188
|
1.781
|
3.31
|
|
*RX99
|
– |
– |
– |
9.250
|
9.672
|
0.469
|
1.000
|
–
|
|
RX201?
|
– |
– |
1 3/8
|
1.813
|
2.026
|
0.226
|
0.445
|
–
|
|
*RX205?
|
– |
– |
1 13/16
|
2.250
|
2.453
|
0.219
|
0.437
|
–
|
|
*RX210?
|
– |
– |
2 9/16
|
3.500
|
3.844
|
0.375
|
0.750
|
–
|
|
*RX215
|
– |
– |
4 1/16
|
5.125
|
5.547
|
0.469
|
1.000
|
–
|
|
*RX215?
|
– |
– |
4 1/16 X 4¼
|
5.125
|
5.547
|
0.469
|
1.000-
|
–
|
|
|
| STYLE RX RING JOINT GASKET SELECTION TABLE |
| NOMINAL PIPE SIZE |
PRESSURE CLASSES |
| API 6B |
| 720# (1) |
960# (1) |
2000# |
2900# (1) |
3000# |
5000# |
| 1” |
– |
– |
– |
RX-82 |
– |
– |
| 1 3/8” |
– |
– |
– |
– |
– |
RX-201 |
| 1 ½” |
RX-20 |
RX-20 |
RX-20 |
RX-84 |
RX-20 |
RX-20 |
| 1 13/16″ |
– |
– |
– |
– |
– |
RX205 |
| 2” |
RX-23 |
RX-23 |
RX-23 |
RX-85 |
RX-24 |
RX-24 |
| 2 ½” |
RX-26 |
RX-26 |
RX-26 |
RX-86 |
RX-27 |
RX-27 |
| 2 9/16” |
– |
– |
– |
– |
– |
RX210 |
| 3” |
RX-31 |
RX-31 |
RX-31 |
RX-87 |
RX-31 |
RX35 |
| 3 ½” |
– |
– |
– |
RX-89 |
– |
– |
| 4” |
RX-37 |
RX-37 |
RX-37 |
RX-88 |
RX-37 |
RX-39 |
| 4 1/16″ |
– |
– |
– |
– |
– |
RX-215 |
| 5” |
RX-41 |
RX-41 |
RX-41 |
RX-90 |
RX-41 |
RX-44 |
| 6” |
RX-45 |
RX-45 |
RX-45 |
– |
RX-45 |
RX-46 |
| 8” |
RX-49RX-99 (2) |
RX-49 |
RX-49 |
– |
RX-49RX-99 (2) |
RX-50 |
| 10” |
RX-53 |
RX-53 |
RX-53 |
RX-91 |
RX-53 |
RX-54 |
| 12” |
RX-57 |
RX-57 |
RX-57 |
– |
RX-57 |
– |
| 14” |
– |
– |
– |
– |
– |
RX-63 |
| 16” |
RX-65 |
RX-65 |
RX-65 |
– |
RX-69 |
– |
| 18” |
RX-69 |
RX-69 |
RX-69 |
– |
RX-73 |
– |
| 20” |
RX-73 |
RX-73 |
RX-73 |
– |
RX82 |
– |
|
NOTES:
(1) – Class 720, 960, 10000 and 2900 flanges to API 6B are obselete. Data is for informational purposes only.
(2) – Crossover Flange Connection.
|
|
