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 Flanges (API-6A)

flanges

  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
 
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