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Flange Adapter
VigorPetro offers a large range of API 6A flanges, including Blind Flanges, Companion Flanges, and Weld-Neck Flanges. The API 6A specification requires a rigorous and unique quality system including stringent dimensional and NDT control. All of our flanges are produced in compliance with API 6A specifications.
VigorPetro flanges are produced from PSL1 through PSL3 in the appropriate materials as required by API 6A specifications. Any other special material requirements are available upon request!
Specifications and Parameters (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
|