SEALS FOR OIL FIELD APPLICATIONS

BX – STYLE RING JOINT GASKETS

Style BX pressure energized Ring Joint Gaskets are manufactured in accordance with API 6A and are designed for use on pressurized systems up to 20,000 PSI.

When correctly fitted, the style BX Ring Joint Gasket allows virtual surface-to-surface contact of the flange faces, which means that the Ring Joint Gasket is fully trapped on both the inner and outer diameters.

All BX Ring Joint Gasket incorporate a pressure balance hole to ensure equalization of pressure that may be trapped in the grooves.

Tolerances: ( Inches)

Width of Ring …………………………………+0.008,-0.000
Hole Size ……………………………………….±0.02
Height of Ring ………………………………..+0.080,-0.000
OD of Ring ……………………………………..+0.000,-0.006
Angle of 23° …………………………………..±1/4°

One pressure passage hole required per ring on centerline. A plus tolerance of 0.008 inches for width of ring and height of ring is permitted, provided the variation in width or height does not exceed 0.004 inches throughout its entire circumference.

NOTE: Radius of the ring shall be 8% to12% of the ring height.

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BX – STYLE RING JOINT GASKETS In Detail

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	Outside Diameter of Ring	Height of Ring	Width of Ring	Hole Size	Gasket Weight lbs.
	Nominal Pipe Size				OD	H	A	D	for API 6BX
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	–	–	–	–	19.347	1.105	0.638	0.12	–
BX162	16¾	16¾	–	–	18.720	0.560	0.560	0.06	–
BX163	18¾	–	–	–	21.896	1.185	0.684	0.12	–
BX164	–	18¾	18¾	–	22.463	1.185	0.968	0.12	–
BX165	21¼	–	–	–	24.595	1.261	0.728	0.12	–
BX166	–	21¼	–	–	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	–
Dimensions in Inches.
* BX167 is suitable for 26¾ Nominal Pipe Size 2,ooo psi rating. ** BX169 is suitable for 5¾ Nominal Pipe Size 10,000 psi rating. BX168 is suitable for 26¾ Nominal Pipe Size 3,000 psi rating. ?? ? BX303 is suitable for 30 Nominal Pipe Size 2,000 and 3,000 psi rating.

STYLE BX SELECTION TABLE

NOMINAL PIPE SIZE	PRESSURE CLASSES
	API 6BX
	2000#	3000#	5000#	10000#	15000#	20000#
1 11/16″	–	–	–	BX-150	BX-150	–
1 13/16″	–	–	–	BX-151	BX-151	BX-151
2 1/16″	–	–	–	BX-152	BX-152	BX-152
2 9/16″	–	–	–	BX-153	BX-153	BX-153
3 1/16″	–	–	–	BX-154	BX-154	BX-154
4 1/16″	–	–	–	BX-155	BX-155	BX-155
5 1/8″	–	–	–	BX-169	–	–
6 5/8″	–	–	–	BX-170	BX-170	–
7 1/16″	–	–	–	BX-156	BX-156	BX-156
8 9/16″	–	–	–	BX-171	BX-171	–
9″	–	–	–	BX-157	BX-157	BX-157
11″	–	–	–	BX-158	BX-158	BX-158
11 5/32″	–	–	–	BX-172	BX-172	–
13 5/8″	–	–	BX-160	BX-159	BX-159	BX-159
16 3/4″	–	–	BX-161 BX-162	BX-162	BX-162	–
18 3/4″	–	–	BX-163	BX-164	BX-164	–
21 1/4″	–	–	BX-165	BX-166	–	–
26 3/4″	BX-167	BX-168	–	–	–	–
30″	BX-303	BX-303	–	–	–	–