ANSI B16.5 Class 150 Threaded Flanges Hub Diameter 1.19-24.25 in

Nominal Pipe Size

Outside Diameter (O)

Thickness (T)

Raised Face Diameter (R)

Length Thru Hub (Y)

Hub Diameter (X)

Approximate Weight (lbs)

Bolt Circle (C)

Number of Holes

Diameter of Holes

3.5

0.44

1.38

0.63

1.19

1

2.38

4

0.63

 3/4

3.88

0.5

1.69

0.63

1.5

2

2.75

4

0.63

1

4.25

0.56

2

0.69

1.94

2

3.13

4

0.63

1 1/4

4.63

0.63

2.5

0.81

2.31

3

3.5

4

0.63

1 1/2

5

0.69

2.88

0.88

2.56

3

3.88

4

0.63

2

6

0.75

3.63

1

3.06

5

4.75

4

0.75

2 1/2

7

0.88

4.13

1.13

3.56

7

5.5

4

0.75

3

7.5

0.94

5

1.19

4.25

8

6

4

0.75

3 1/2

8.5

0.94

5.5

1.25

4.81

11

7

8

0.75

4

9

0.94

6.19

1.31

5.31

13

7.5

8

0.75

5

10

0.94

7.31

1.44

6.44

15

8.5

8

0.88

6

11

1

8.5

1.56

7.56

19

9.5

8

0.88

8

13.5

1.13

10.63

1.75

9.69

30

11.75

8

0.88

10

16

1.19

12.75

1.94

12

43

14.25

12

1

12

19

1.25

15

2.19

14.38

64

17

12

1

14

21

1.38

16.25

2.25

15.75

90

18.75

12

1.13

16

23.5

1.44

18.5

2.5

18

98

21.25

16

1.13

18

25

1.56

21

2.69

19.88

130

22.75

16

1.25

20

27.5

1.69

23

2.88

22

165

25

20

1.25

22

29.5

1.81

25.25

3.13

24.25

185

27.25

20

1.38