ANSI B16.5 Class 1500 Threaded Flanges Raised Face Diameter 1.38-15 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

 1/2

4.75

0.88

1.38

1.25

1.5

4

3.25

4

0.88

 3/4

5.13

1

1.69

1.38

1.75

5

3.5

4

0.88

1

5.88

1.13

2

1.63

2.06

8

4

4

1

1 1/4

6.25

1.13

2.5

1.63

2.5

9

4.38

4

1

1 1/2

7

1.25

2.88

1.75

2.75

12

4.88

4

1.13

2

8.5

1.5

3.63

2.25

4.13

25

6.5

8

1

2 1/2

9.63

1.63

4.13

2.5

4.88

36

7.5

8

1.13

3

10.5

1.88

5

2.88

5.25

48

8

8

1.25

4

12.25

2.13

6.19

3.56

6.38

73

9.5

8

1.38

5

14.75

2.88

7.31

4.13

7.75

130

11.5

8

1.63

6

15.5

3.25

8.5

4.69

9

165

12.5

12

1.5

8

19

3.63

10.63

5.63

11.5

260

15.5

12

1.75

10

23

4.25

12.75

6.25

14.5

435

19

12

2

12

26.5

4.88

15

7.13

17.75

580

22.5

16

2.13