Product Description
API 6A Flanges
We produce high quality API 6A Flanges. And we welcome custom design.
Flange Specifications (API-6A)
| Flange Size |
Working Pressure (psi) |
Outside Diameter |
Number of Bolt Holes |
Diameter of Bolts |
Length of Bolts |
API Ring Gasket |
| 1-13/16" |
10,000 |
7-3/8" |
8 |
3/4" |
5-1/4" |
BX-151 |
| |
15,000 |
8-3/16" |
8 |
7/8" |
6" |
BX-151 |
| |
20,000 |
10-1/8" |
8 |
1" |
7-3/4" |
BX-151 |
| 2-1/16" |
2,000 |
6-1/2" |
8 |
5/8" |
5/8" |
R-23 |
| |
3,000/5,000 |
8-1/2" |
8 |
7/8" |
7/8" |
R-24 |
| |
10,000 |
7-7/8" |
8 |
3/4" |
3/4" |
BX-152 |
| |
15,000 |
8-3/4" |
8 |
7/8" |
7/8" |
BX-152 |
| |
20,000 |
11-5/16" |
8 |
1-1/8" |
1-1/8" |
BX-152 |
| 2-9/16" |
2,000 |
7-1/2" |
8 |
3/4" |
5-1/4" |
R-26 |
| |
3,000/5,000 |
9-5/8" |
8 |
1" |
7" |
R-27 |
| |
10,000 |
9-1/8" |
8 |
7/8" |
6-1/4" |
BX-153 |
| |
15,000 |
10" |
8 |
1" |
7" |
BX-153 |
| |
20,000 |
12-13/16" |
8 |
1-1/4" |
9-1/2" |
BX-153 |
| 3-1/8" |
2,000 |
8-1/4" |
8 |
3/4" |
5-1/2" |
R-31 |
| |
3,000 |
9-1/2" |
8 |
7/8" |
6-1/4" |
R-31 |
| |
5,000 |
10-1/2" |
8 |
1-1/8" |
7-3/4" |
R-35 |
| 3-1/16" |
10,000 |
10-5/8" |
8 |
1" |
7-1/4" |
BX-154 |
| |
15,000 |
11-5/16" |
8 |
1-1/8" |
8" |
BX-154 |
| |
20,000 |
14-1/16" |
8 |
1-3/8" |
10-3/4" |
BX-154 |
| 4-1/16" |
2,000 |
10-3/4" |
8 |
7/8" |
6-1/4" |
R-37 |
| |
3,000 |
11-1/2" |
8 |
1-1/8" |
7-1/2" |
R-37 |
| |
5,000 |
12-1/4" |
8 |
1-1/4" |
8-1/2" |
R-39 |
| |
10,000 |
12-7/16" |
8 |
1-1/8" |
8-3/8" |
BX-155 |
| |
15,000 |
14-3/16" |
8 |
1-3/8" |
9-3/4" |
BX-155 |
| |
20,000 |
17-9/16" |
8 |
1-3/4" |
12-3/4" |
BX-155 |
| 5-1/8" |
5,000 |
14-3/4" |
8 |
1-1/2" |
10-3/4" |
R-44 |
| 7-1/16" |
2,000 |
14" |
12 |
1" |
7-1/2" |
R-45 |
| |
3,000 |
15" |
12 |
1-1/8" |
8-1/2" |
R-45 |
| |
5,000 |
15-1/2" |
12 |
1-3/8" |
11-1/4" |
R-46 |
| |
10,000 |
18-7/8" |
12 |
1-1/2" |
11-3/4" |
BX-156 |
| |
15,000 |
19-7/8" |
16 |
1-1/2" |
13" |
BX-156 |
| |
20,000 |
25-13/16" |
16 |
2" |
17-3/4" |
BX-156 |
| 9" |
2,000 |
16-1/2" |
12 |
1-1/8" |
8-1/2" |
R-49 |
| |
3,000 |
18-1/2" |
12 |
1-3/8" |
9-1/2" |
R-49 |
| |
5,000 |
19" |
12 |
1-5/8" |
12-1/2" |
R-50 |
| |
10,000 |
21-3/4" |
16 |
1-1/2" |
13-1/4" |
BX-157 |
| |
15,000 |
25-1/2" |
16 |
1-7/8" |
16" |
BX-157 |
| 11" |
2,000 |
20" |
16 |
1-1/4" |
9-1/4" |
R-53 |
| |
3,000 |
21-1/2" |
16 |
1-3/8" |
10" |
R-53 |
| |
5,000 |
23" |
12 |
1-7/8" |
14-1/4" |
R-54 |
| |
10,000 |
25-3/4" |
16 |
1-3/4" |
15-3/8" |
BX-158 |
| |
15,000 |
32" |
20 |
2" |
19-1/2" |
BX-158 |
| 13-5/8" |
2,000 |
22" |
20 |
1-1/4" |
9-1/2" |
R-57 |
| |
3,000 |
24" |
20 |
1-3/8" |
10-3/4" |
R-57 |
| |
5,000 |
26-1/2" |
16 |
1-5/8" |
12-3/4" |
BX-160 |
| |
10,000 |
30-1/4" |
20 |
1-7/8" |
17-3/4" |
BX-159 |
| |
15,000 |
34-7/8" |
20 |
2-1/4" |
21" |
BX-159 |
| 16-3/4" |
2,000 |
27" |
20 |
1-1/2" |
10-3/4" |
R-65 |
| |
3,000 |
27-3/4" |
20 |
1-5/8" |
12-1/4" |
R-66 |
| |
5,000 |
30-3/8" |
16 |
1-7/8" |
14-3/4" |
BX-162 |
| |
10,000 |
34-5/16" |
24 |
1-7/8" |
17-3/4" |
BX-162 |
| 18-3/4" |
5,000 |
35-5/8" |
20 |
2" |
18" |
BX-163 |
| |
10,000 |
40-15/16" |
24 |
2-1/4" |
23" |
BX-164 |
| 20-3/4" |
3,000 |
33-3/4" |
20 |
2" |
15-1/4" |
R-74 |
| 21-1/4" |
2,000 |
32" |
24 |
1-5/8" |
12-1/2" |
R-73 |
| |
5,000 |
39" |
24 |
2" |
19" |
BX-165 |
| |
10,000 |
45" |
24 |
2-1/2" |
24-3/4" |
BX-166 |
| 26-3/4" |
2,000 |
41" |
20" |
1-3/4" |
14-1/4" |
BX-167 |
| |
3,000 |
43-3/8" |
24" |
2" |
17-1/2" |
BX-168 |
Audited Supplier 
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