| Dimensions for Class 150 Flanges |
| Pipe Size (inches) |
O |
Q |
R |
X |
No. of Holes |
Dia. of Bolt Holes |
Bolt Circle Dia |
YY |
H |
J |
Y |
B |
R |
YY |
BB |
Z |
| 1/2 |
88.9 |
11.2 |
35.1 |
30.2 |
4 |
15.7 |
60.5 |
47.8 |
21.3 |
15.7 |
15.7 |
22.4 |
3.0 |
15.7 |
22.9 |
9.7 |
| 3/4 |
98.6 |
12.7 |
42.9 |
38.1 |
4 |
15.7 |
69.9 |
52.3 |
26.7 |
20.8 |
15.7 |
27.7 |
3.0 |
15.7 |
28.2 |
11.2 |
| 1 |
108.0 |
14.2 |
50.8 |
49.3 |
4 |
15.7 |
79.2 |
55.6 |
33.5 |
26.7 |
17.5 |
34.5 |
3.0 |
17.5 |
35.1 |
12.7 |
| 1 1/4 |
117.3 |
15.7 |
63.5 |
58.7 |
4 |
15.7 |
88.9 |
57.2 |
42.2 |
35.1 |
20.6 |
43.2 |
4.8 |
20.6 |
43.7 |
14.2 |
| 1 1/2 |
127.0 |
17.3 |
73.2 |
65.0 |
4 |
15.7 |
98.6 |
62.0 |
48.3 |
40.9 |
22.4 |
49.5 |
6.4 |
22.4 |
50.0 |
15.7 |
| 2 |
152.4 |
19.1 |
91.9 |
77.7 |
4 |
19.1 |
120.7 |
63.5 |
60.5 |
52.6 |
25.4 |
62.0 |
7.9 |
25.4 |
62.5 |
17.5 |
| 21/2 |
177.8 |
22.4 |
104.6 |
90.4 |
4 |
19.1 |
139.7 |
69.9 |
73.2 |
62.7 |
28.4 |
74.7 |
7.9 |
28.4 |
75.4 |
19.1 |
| 3 |
190.5 |
23.9 |
127.0 |
108.0 |
4 |
19.1 |
152.4 |
69.9 |
88.9 |
78.0 |
30.2 |
90.7 |
9.7 |
30.2 |
91.4 |
20.6 |
| 31/2 |
215.9 |
23.9 |
139.7 |
122.2 |
8 |
19.1 |
177.8 |
71.4 |
101.6 |
90.2 |
31.8 |
1033.8 |
9.7 |
31.8 |
104.1 |
|
| 4 |
228.6 |
23.9 |
157.2 |
134.9 |
8 |
19.1 |
190.5 |
76.2 |
114.3 |
102.4 |
33.3 |
116.1 |
11.2 |
33.3 |
116.8 |
|
| 5 |
254.0 |
23.9 |
185.7 |
163.6 |
8 |
22.4 |
215.9 |
88.9 |
141.2 |
128.3 |
36.6 |
143.8 |
11.2 |
36.6 |
144.5 |
|
| 6 |
279.4 |
25.4 |
215.9 |
192.0 |
8 |
22.4 |
241.3 |
88.9 |
168.4 |
154.2 |
39.6 |
170.7 |
12.7 |
39.6 |
171.5 |
|
| 8 |
342.9 |
28.4 |
269.7 |
246.1 |
8 |
22.4 |
298.5 |
101.6 |
219.2 |
202.7 |
44.5 |
221.5 |
12.7 |
44.5 |
222.3 |
|
| 10 |
406.4 |
30.2 |
323.9 |
304.8 |
12 |
25.4 |
362.0 |
101.6 |
273.1 |
254.5 |
49.3 |
276.4 |
12.7 |
49.3 |
277.4 |
|
| 12 |
482.6 |
31.8 |
381.0 |
365.3 |
12 |
25.4 |
431.8 |
114.3 |
323.9 |
304.8 |
55.6 |
327.2 |
12.7 |
55.6 |
328.2 |
|
| 14 |
533.4 |
35.1 |
412.8 |
400.1 |
12 |
28.4 |
476.3 |
127.0 |
355.6 |
To Be Specified by the Purchaser |
57.2 |
359.2 |
12.7 |
79.2 |
360.2 |
|
| 16 |
596.9 |
36.6 |
469.9 |
457.2 |
16 |
28.4 |
539.8 |
127.0 |
406.4 |
63.5 |
410.5 |
12.7 |
87.4 |
411.2 |
|
| 18 |
635.0 |
39.6 |
533.4 |
505.0 |
16 |
31.8 |
577.9 |
139.7 |
457.2 |
68.3 |
461.8 |
12.7 |
96.8 |
462.3 |
|
| 20 |
698.5 |
42.9 |
584.2 |
558.8 |
20 |
31.8 |
635.0 |
144.5 |
508.0 |
73.2 |
513.1 |
12.7 |
103.1 |
514.4 |
|
| 24 |
812.8 |
47.8 |
692.2 |
663.4 |
20 |
35.1 |
749.3 |
152.4 |
609.6 |
82.6 |
616.0 |
12.7 |
111.3 |
616.0 |
|
