SEALS FOR OIL FIELD APPLICATIONS

RX – STYLE RING JOINT GASKETS

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.

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RX – STYLE RING JOINT GASKETS In Detail

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.