Flange ANSI

ANSI 150

Normal Diameter of Pipe

  Dimension of Flange Bolt
A C D H

No.

mm lnch
 

15

1/2″

60.5 88.9 15.7 4

20

3/4″ 69.9 98.6 15.7

4

25

1″ 79.2 108 15.7

4

32

1-1/4″ 88.9 117.3 15.7

4

40 1-1/2″ 98.6 127 15.7 4

50

2″ 120.7 152.4 19.1 4

65

2-1/2″ 139.7 177.8 19.1 4

80

3″ 152.4 190.5 19.1

4

100 4″ 190.5 228.6 19.1

8

125

5″ 215.9 254 22.4 8
150 6″ 241.3 279.4 22.4

8

200

8″ 298.5 342.9 22.4 8

250

10″ 362 406.4 25.4

12

300 12″ 431.8 482.6 25.4

12

350

14″ 476.3 533.4 28.4 12
400 16″ 593.8 596.9 28.4

16

450

18″ 577.9 635 31.8

16

500

20″ 635 698.5 31.8

20

600 24″ 749.3 812.8 35.1

20

 

ANSI#300

Normal Diameter of Pipe

  Dimension of Flange Bolt
A C D

H

No.

mm

lnch

 

15

1/2″ 66.5 95.3 15.7 4

20

3/4″ 82.6 117.3 19.1 4

25

1″ 88.9 124 19.1

4

32 1-1/4″ 98.5 133.3 19.1

4

40 1-1/2″ 114.3 155.4 22.4

4

50

2″ 127 165.1 19.1 8
65 2-1/2″ 149.3 190.5 22.4

8

80

3″ 186.1 209.6 22.4 8
100 4″ 200.2 254 22.4

8

125

5″ 235 279.4 22.4 8

150

6″ 269.7 317.5 22.4 12
200 8″ 330.2 381 25.4

12

250 10″ 387.3 444.5 28.4

16

300

12″ 450.9 520.7 31.8 16

350

14″ 514.4 584.2 31.8 20
400 16″ 571.5 647.7 35.1

20

450 18″ 628.6 711.2 35.1

24

500

20″ 685.7 774.7 35.1 24

600

24″ 812.8 914.4 41.1 24