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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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