Dimensions for Class 2500 Flanges

(inches)

O

Q*

R

X

No.
and**
Dia of
Bolt
Holes

Bolt
Circle
Dia.

YY*

H

J

Y*

B

R

YV

BB

C

T

1/2

5.25

1.19

1.38

1.69

4-0.88

3.50

2.88

0.84

To
Be

S
p
e
c
i
f
i
e
d

by

P
u
r
c
h
a
s
e
r

1.56

.12

1.56

0.90

0.93

1.12

 1.12

3/4

5.50

1.25

1.69

2.00

4-0.88

3.75

3.12

1.05

1.69

.12

1.69

1.11

1.14

1.25

1

6.25

1.38

2.00

2.25

4-1.00

4.25

3.50

1.32

1.88

.12

1.88

1.38

1.41

1.38

11/4

7.25

1.50

2.50

2.88

4-1.12

5.12

3.75

1.66

2.06

.19

2.06

1.72

1.75

1.50

11/2

8.00

1.75

2.88

3.12

4-1.25

5.75

4.38

1.90

2.38

.25

2.38

1.97

1.99

1.75

2

9.25

2.00

3.62

3.75

8-1.12

6.75

5.00

2.38

2.75

.31

2.75

2.46

2.50

2.00

21/2

10.50

2.25

4.12

4.50

8-1.25

7.75

5.62

2.88

3.12

.31

3.12

2.97

3.00

2.25

3

12.00

2.62

5.00

5.25

8-1.38

9.00

6.62

3.50

3.62

.38

3.62

3.60

3.63

2.50

4

14.00

3.00

6.19

6.50

8-1.62

10.75

7.50

4.50

4.25

.44

4.25

4.60

4.63

2.75

5

16.50

3.62

7.31

8.00

8-1.88

12.75

9.00

5.56

5.12

.44

5.12

5.69

5.69

3.00

6

19.00

4.25

8.50

9.25

8-2.12

14.5

10.75

6.63

6.00

.50

6.00

6.75

6.75

3.25

8

21.75

5.00

10.62

12.00

12-2.12

17.25

12.50

8.63

7.00

.50

7.00

8.75

8.75

3.75

10

26.50

6.50

12.75

14.75

12-2.62

21.25

16.50

10.75

9.00

.50

9.00

10.92

10.88

4.25

12

30.00

7.25

15.00

17.38

12-2.88

24.38

18.25

12.75

10.00

.50

10.00

12.92

12.94

4.75