Dimensions for Class 900 Flanges
Nom. Pipe Size (inches)
O
Q*
R
X
No. and** Dia of Bolt Holes
Bolt Circle Dia.
YY*
H
J
Y*
B
r
YV
BB
Z
C
T
1/2
4.75
0.88
1.38
1.50
4-0.88
3.25
2.38
0.84
To Be S p e c i f i e d by P u r c a s e r
1.25
0.12
0.90
0.93
3/4
5.12
1.00
1.69
1.75
3.50
2.75
1.05
1.09
1.11
1.14
1
5.88
1.12
2.00
2.06
4-1.00
4.00
2.88
1.32
1.62
1.36
1.41
11/4
6.25
2.50
4.38
1.66
1.70
0.19
1.72
1.19
11/2
7.00
4-1.12
4.88
1.90
1.95
0.25
1.97
1.99
2
8.50
3.62
4.12
8-1.00
6.50
2.25
2.44
0.31
2.46
21/2
9.62
8-1.12
7.50
2.94
2.97
3.00
1.88
3
9.50
5.00
2.12
3.57
0.38
3.60
3.63
4
11.50
6.19
8-1.25
9.25
4.50
4.57
0.44
4.60
4.63
5
13.75
7.31
8-1.38
11.00
5.56
3.12
5.66
5.69
6
15.00
2.19
12-1.25
12.50
5.50
6.63
3.38
6.72
0.50
6.75
8
18.5
10.62
11.75
12-1.50
15.5
6.38
8.63
8.72
4.5
8.75
10
21.50
12.75
14.50
16-1.50
18.50
7.25
10.75
4.25
10.88
10.92
2.81
12
24.00
16.50
20-1.50
21.00
7.88
4.62
12.88
5.62
12.92
12.94
14
25.25
16.25
17.75
20-1.62
22.00
8.38
14.00
14.14
6.12
14.18
14.19
16
27.75
20.00
20-1.75
24.25
8.5
16.00
5.25
16.16
16.19
18
31.00
22.25
20-2.00
27.00
9.00
18.00
6.00
18.18
18.20
18.19
20
33.75
23.00
24.50
20-2.12
29.50
9.75
20.20
8.25
20.25
20.19
24
41.00
27.25
20-2.62
35.50
8.00
10.50
24.19
