Class 1500 Flange information

diameter

number of

diameter

stud bolt length

pipe size

outside

bolt circle

bolt hole

bolt holes

of bolts

1/4" raised face


0.50


4.75


3.25


0.875


4


0.750


4.25

0.75

5.12

3.50

0.875

4

0.750

4.50

1.00

5.88

4.00

1.000

4

0.875

5.00

1.25

6.25

4.38

1.000

4

0.875

5.00

1.50

7.00

4.88

1.125

4

1.000

5.50

2.00

8.50

6.50

1.000

8

0.875

5.75

2.50

9.62

7.50

1.125

8

1.000

6.25

3.00

10.50

8.00

1.250

8

1.125

7.00

4.00

12.25

9.50

1.375

8

1.250

7.75

5.00

14.75

11.50

1.625

8

1.500

9.75

6.00

15.50

12.50

1.500

12

1.375

10.25

8.00

19.00

15.50

1.750

12

1.625

11.50

10.00

23.00

19.00

2.000

12

1.875

13.25

12.00

26.50

22.50

2.125

16

2.000

14.75

14.00

29.50

25.00

2.375

16

2.250

16.00

16.00

32.50

27.75

2.625

16

2.500

17.50

18.00

36.00

30.50

2.875

16

2.750

19.50

20.00

38.75

32.75

3.125

16

3.000

21.25

24.00

46.00

39.00

3.625

16

3.500

24.25