API 6A Flange Data

2,000 PSI WP - 4,000 PSI TEST

API Nom
Size
Max. Size Dimensions Seal Ring
LP Size Tbg Or CSG OD. Dia. Thk. #
Bolts
Bolt Size Bolt Cir
Dia.
API
No.
Ring PD
2-1/16" 2" 1.66 to 2-3/8" 6-1/2" 1-5/16" 8 5/8" x 4-1/2" 5" 23 3-1/4"
2-9/16" 2-1/2" 2-7/8" 7-1/2" 1-7/16" 8 3/4" x 5" 5-7/8" 26 4"
3-1/8" 3" 3-1/2" 8-1/4" 1-9/16" 8 3/4" x 5-1/4" 6-5/8" 31 4-7/8"
4-1/16" 4" 4" to 4-1/2" 10-3/4" 1-13/16" 8 7/8" x 6" 8-1/2" 37 5-7/8"
7-1/16" 6" 4-1/2" to 7" 14" 2-3/16" 12 1" x 7" 11-1/2" 45 8-5/16"
9" 8" 7-5/8" to 8-5/8" 16-1/2" 2-1/2" 12 1-1/8" x 8" 13-3/4" 49 10-5/8"
11" 10" 9-5/8" to 10-3/4" 20" 2-13/16" 16 1-1/4" x 8-3/4" 17" 53 12-3/4"
13-5/8" 12" 11-3/4" to 13-3/8" 22" 2-15/16" 20 1-1/4" x 9" 19-1/4" 57 15"
16-3/4" 16" 16" 27" 3-5/16" 20 1-1/2" x 10-1/4" 23-3/4" 65 18-1/2"
21-1/4" 20" 20" 32" 3-7/8" 24 1-5/8" x 11-3/4" 28-1/2" 73 23"

3,000 PSI WP - 6,000 PSI TEST

API Nom
Size
Max. Size Dimensions Seal Ring
LP Size Tbg Or CSG OD. Dia. Thk. #
Bolts
Bolt Size Bolt Cir
Dia.
API
No.
Ring PD
2-1/16" 2" 1.66 to 2-3/8" 8-1/2" 1-13/16" 8 7/8" x 6" 6-1/2" 24 3-3/4"
2-9/16" 2-1/2" 2-7/8" 9-5/8" 1-15/16" 8 1" x 7-1/2" 7-1/2" 27 4-1/4"
3-1/8" 3" 3-1/2" 9-1/2" 1-13/16" 8 7/8" x 6" 7-1/2" 31 4-7/8"
4-1/16" 4" 4" to 4-1/2" 11-1/2" 2-1/16" 8 1-1/8" x 8" 9-1/4" 37 5-7/8"
7-1/16" 6" 4-1/2" to 7" 15" 2-1/2" 12 1-1/8" x 8" 12-/2" 45 8-5/16"
9" 8" 7-5/8" to 8-5/8" 18-1/2" 2-13/16" 12 1-3/8" x 9" 15-1/2" 49 10-5/8"
11" 10" 9-5/8" to 10-3/4" 21-1/2" 3-1/16" 16 1-3/8" x 9-1/2" 18-1/2" 53 12-3/4"
13-5/8" 12" 11-3/4" to 13-3/8" 24" 3-7/16" 20 1-3/8" x 10-1/4" 21" 57 15"
16-3/4" 16" 16" 27-3/4" 3-15/16" 20 2" x 14-1/2" 24-1/4" 66 18-1/2"
24-1/4" 20" 20" 33-3/4" 4-3/4" 20 1-5/8" x 11-3/4" 29-1/2" 74 23"

5,000 PSI WP - 10,000 PSI TEST

API Nom
Size
Max. Size Dimensions Seal Ring
LP Size Tbg Or CSG OD. Dia. Thk. #
Bolts
Bolt Size Bolt Cir
Dia.
API
No.
Ring PD
2-1/16" 2" 1.66 to 2-3/8" 8-1/2" 1-13/16" 8 7/8" x 6" 6-1/2" 24 3-3/4"
2-9/16" 2-1/2" 2-7/8" 9-5/8" 1-15/16" 8 1" x 6-1/2" 7-1/2" 27 4-1/4"
3-1/8" 3" 3-1/2" 10-1/2" 2-3/16" 8 1-1/8" x 7-1/4" 8" 35 5-3/8"
4-1/16" 4" 4" to 4-1/2" 12-1/4" 2-7/16" 8 1-1/4" x 8" 9-1/2" 39 6-3/8"
7-1/16" 6" 4-1/2" to 7" 15-1/5" 3-5/8" 12 1-3/8" x 10-3/14" 12-1/2" 46 8-5/16"
9" 8" 7-5/8" to 8-5/8" 19" 4-1/16" 12 1-5/8" x 12" 15-1/2" 50 10-5/8"
11" 10" 9-5/8" to 10-3/4" 23" 4-11/16" 12 1-7/8" x 13-3/4" 19" 54 12-3/4"
13-5/8" 12" 11-3/4" to 13-3/8" 26-1/2" 5-7/16" 16 2" x 15-3/4" 22-1/2" 58 15"
16-3/4" 14" 11-3/4" to 13-3/8" 26-1/2" 4-7/16" 16 1-5/8" x 12-1/2" 23-1/4" 160 18-1/8"

10,000 PSI WP - 15,000 PSI TEST

API Nom
Size
Max. Size
Tbg Or CSG OD.
Dimensions Seal Ring
API No. Ring Groove
Dia. Thk. #
Bolts
Bolt Size Bolt Cir
Dia.
OD "A" Width
"W"
Depth
"D"
1-11/16" 1.900" 7-3/16" 1-21/32" 8 3/4" x 5" 5-9/16" BX150 2.893 0.450 7/32
1-13/16" 2-1/16" 7-3/8" 1-21/32" 8 3/4" x 5" 5-3/4" BX151 3.062 0.466 7/32
2-1/16" 2-3/8" 7-7/8" 1-47/64" 8 3/4" x 5-1/4" 6-1/4" BX152 3.395 0.498 15/64
2-9/16" 2-7/8" 9-1/8" 2-1/64" 8 7-1/8" x 6" 7-1/4" BX153 4.046 0.554 17/64
3-1/16" 3-1/2" 10-5/8" 2-19/64" 8 1" x 6-3/4" 8-1/2" BX154 4.685 0.606 19/64
4-1/16" 4" To 4-1/2" 12-7/16" 2-49/64" 8 1-1/8" x 8" 10-3/16" BX155 5.930 0.698 21/64
7-1/16" 4-1/2" to 7" 18-7/8" 4-1/16" 12 1-1/2" x 11-1/4" 15-7/8" BX156 9.521 0.921 7/16
9" 7-5/8" To 8-5/8" 21-3/4" 4-7/8" 16 1-3/8" x 10-1/4" 18-3/4" BX157 11.774 1.039 1/2
11" 8-5/8" to 9-5/8" 25-3/4" 5-9/16" 16 2" x 14-1/2" 22-1/4" BX158 14.064 1.149 9/16
13-5/8" 10-3/4" To 11-3/4" 30-1/4" 6-5/8" 20 1-7/8" x 17-1/4" 26-1/2" BX159 17.033 1.279 5/8