900# DIM & Weight

Dimensions for Class 900 Flanges

Nom. Pipe Size (inches)
O
Q*
R
X
No. of Holes
Dia of Bolt Holes
Bolt Circle Dia
YY*
H
J
Y*
B
r
YV
BB
Z
C
T
     
1/2
120.7
22.4
35.1
38.1
4
22.4
82.6
60.5
21.3
To Be
Specified
by the purchaser
31.8
22.4
3.0
31.8
22.9
23.6
22.4
 
 
3/4
130.0
25.4
42.9
44.5
4
22.4
88.9
69.9
26.7
35.1
27.7
3.0
35.1
28.2
29.0
25.4
 
 
1
149.4
28.4
50.8
52.3
4
25.4
101.6
73.2
33.5
41.1
34.5
3.0
41.1
35.1
35.8
28.4
 
 
1 1/4
158.8
28.4
63.5
63.5
4
25.4
111.3
73.2
42.2
41.1
43.2
4.8
41.1
43.7
44.5
30.2
 
 
1 1/2
177.8
31.8
73.2
69.9
4
28.4
124.0
82.6
48.3
44.5
49.5
6.4
44.5
50.0
50.5
31.8
 
 
2
215.9
38.1
91.9
104.6
8
25.4
165.1
101.6
60.5
57.2
62.0
7.9
57.2
62.5
63.5
38.1
 
 
21/2
244.3
41.1
104.6
124.0
8
28.4
190.5
104.6
73.2
63.5
74.7
7.9
63.5
75.4
76.2
47.8
 
 
3
241.3
38.1
127.0
127.0
8
25.4
190.5
101.6
88.9
53.8
90.7
9.7
53.8
91.4
92.2
41.1
 
 
4
292.1
44.5
157.2
158.8
8
31.8
235.0
114.3
114.3
69.9
116.1
11.2
69.9
116.8
117.6
47.8
 
 
5
349.3
50.8
185.7
190.5
8
35.1
279.4
127.0
141.2
79.2
143.8
11.2
79.2
144.5
144.5
53.8
 
 
6
381.0
55.6
215.9
235.0
12
31.8
317.5
139.7
168.4
85.9
170.7
12.7
85.9
171.5
171.5
57.2
 
 
8
469.9
63.5
269.7
298.5
12
38.1
393.7
162.1
219.2
101.6
221.5
12.7
114.3
222.3
222.3
63.5
 
 
10
546.1
69.9
323.9
368.3
16
38.1
469.9
184.2
273.1
108.0
276.4
12.7
127.0
277.4
276.4
71.4
 
 
12
609.6
79.2
381.0
419.1
20
38.1
533.4
200.2
323.9
117.3
327.2
12.7
142.7
328.2
328.7
76.2
 
 
14
641.4
85.9
412.8
450.9
20
41.1
558.8
212.9
355.6
130.0
359.2
12.7
155.4
360.2
360.4
82.6
 
 
16
704.9
88.9
469.9
508.0
20
44.5
616.0
215.9
406.4
133.4
410.5
12.7
165.1
411.2
411.2
85.9
 
 
18
787.4
101.6
533.4
565.2
20
50.8
685.8
228.6
457.2
152.4
461.8
12.7
190.5
462.3
462.0
88.9
 
 
20
857.3
108.0
584.2
622.3
20
53.8
749.3
247.7
508.0
158.8
513.1
12.7
209.6
514.4
512.8
91.9
 
 
24
1041.4
139.7
692.2
749.3
20
66.5
901.7
292.1
609.6
203.2
616.0
12.7
266.7
616.0
614.4
101.6