Style BX

« Back to Gasket Technical Data

The Style BX pressure energized Ring Joint gaskets, 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.

Tolerances: ( Inches)

A* Width of Ring ......................................+/- 0.008,-0.000

D Hole Size.............................................+/- 0.02

H* Height of Ring ....................................+/- 0.080,-0.000

OD (OD of Ring ) ......................................+/- 0.000,-0.006

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.

NOTE: Radius of the Ring shall be 8% to 12% of the Ring height 'H'.

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 -
*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.



DAN-LOC Corporate Headquarters
725 North Drennan
Houston, Texas 77003-1320
Telephone: 713-356-3500
Toll Free: 1-800-231-6355
DAN-LOC Express - Texas
725 North Drennan
Houston, Texas 77003-1320
Telephone: 713-356-3560
Toll Free: 1-800-231-6355
DAN-LOC Express - California
15821 South Broadway
Gardena, California 90248
Telephone: 310-538-2822
Fax: 310-538-9877
Toll Free: 1-800-682-2658
DAN-LOC Express - Ohio
294 Fox Drive
Piqua, Ohio 45356
Telephone: 937-778-0485
Fax: 937-778-0682