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.

 

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Tolerances: ( Inches)

Ring Joint Gasket, RTJ, R Type Ring Joint Gasket, RX Type Ring Joint Gasket, BX Type Ring Joint Gasket, R (Oval) Ring Joint Gasket, R (Octagonal) Ring Joint Gasket Width of Ring …………………………………+0.008,-0.000
Ring Joint Gasket, RTJ, R Type Ring Joint Gasket, RX Type Ring Joint Gasket, BX Type Ring Joint Gasket, R (Oval) Ring Joint Gasket, R (Octagonal) Ring Joint Gasket Hole Size ……………………………………….±0.02
Ring Joint Gasket, RTJ, R Type Ring Joint Gasket, RX Type Ring Joint Gasket, BX Type Ring Joint Gasket, R (Oval) Ring Joint Gasket, R (Octagonal) Ring Joint Gasket Height of Ring ………………………………..+0.080,-0.000
Ring Joint Gasket, RTJ, R Type Ring Joint Gasket, RX Type Ring Joint Gasket, BX Type Ring Joint Gasket, R (Oval) Ring Joint Gasket, R (Octagonal) Ring Joint Gasket OD of Ring ……………………………………..+0.000,-0.006
Ring Joint Gasket, RTJ, R Type Ring Joint Gasket, RX Type Ring Joint Gasket, BX Type Ring Joint Gasket, R (Oval) Ring Joint Gasket, R (Octagonal) Ring Joint Gasket 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.

 

STYLE BX RING JOINT GASKET DIMENSION TABLE

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

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

 

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