ANSI B16.5 Class 2500 Lap Joint Flanges Length Thru Hub 1.56-10 In

Nominal Pipe Size

Outside Diameter (O)

Thickness (T)

Length Thru Hub (Y)

Hub Diameter (X)

Radius (r)

Bore (B)

Approximate Weight (lbs)

Bolt Circle (C)

Number of Holes

Diameter of Holes

 1/2

5.25

1.19

1.56

1.69

0.13

0.9

7

3.5

4

0.88

 3/4

5.5

1.25

1.69

2

0.13

1.11

8

3.75

4

0.88

1

6.25

1.38

1.88

2.25

0.13

1.38

11

4.25

4

1

1 1/4

7.25

1.5

2.06

2.88

0.19

1.72

16

5.13

4

1.13

1 1/2

8

1.75

2.38

3.13

0.25

1.97

22

5.75

4

1.25

2

9.25

2

2.75

3.75

0.31

2.46

37

6.75

8

1.13

2 1/2

10.5

2.25

3.13

4.5

0.31

2.97

53

7.75

8

1.25

3

12

2.63

3.63

5.25

0.38

3.6

80

9

8

1.38

4

14

3

4.25

6.5

0.38

4.6

120

10.75

8

1.63

5

16.5

3.63

5.13

8

0.44

5.69

205

12.75

8

1.88

6

19

4.25

6

9.25

0.44

6.75

315

14.5

8

2.13

8

21.75

5

7

12

0.5

8.75

470

17.25

12

2.13

10

26.5

6.5

9

14.75

0.5

10.92

900

21.25

12

2.63

12

30

7.25

10

17.38

0.5

12.92

1100

24.38

12

2.88