ASME/ANSI B16.5 Class 900 SO
| Nominal Pipe Size |
Outside Diameter of Flange |
Diameter of Raised Face |
Thickness of Flanges Min. |
Diameter of Hub |
Length Through Hub |
Bore |
Diameter of Bolt Circle |
Diameter of Bolt Holes |
Number of Bolts |
Approxi-mate Weight kgs |
| NPS |
O |
R |
tf |
X |
Y |
B |
W |
I |
n |
|
| 1/2 |
120 |
34.9 |
22.3 |
38 |
32 |
22.2 |
82.6 |
22.2 |
4 |
1.73 |
| 3/4 |
130 |
42.9 |
25.4 |
44 |
35 |
27.7 |
88.9 |
22.2 |
4 |
2.33 |
| 1 |
150 |
50.8 |
28.6 |
52 |
41 |
34.5 |
101.6 |
25.4 |
4 |
3.48 |
| 1 1/4 |
160 |
63.5 |
28.6 |
64 |
41 |
43.2 |
111.1 |
25.4 |
4 |
4.00 |
| 1 1/2 |
180 |
73.0 |
31.8 |
70 |
44 |
49.5 |
123.8 |
28.6 |
4 |
5.54 |
| 2 |
215 |
92.1 |
38.1 |
105 |
57 |
61.9 |
165.1 |
25.4 |
8 |
9.79 |
| 2 1/2 |
245 |
104.8 |
41.3 |
124 |
64 |
74.6 |
190.5 |
28.6 |
8 |
13.82 |
| 3 |
240 |
127.0 |
38.1 |
127 |
54 |
90.7 |
190.5 |
25.4 |
8 |
11.51 |
| 4 |
290 |
157.2 |
44.5 |
159 |
70 |
116.1 |
235.0 |
31.8 |
8 |
19.52 |
| 5 |
350 |
185.7 |
50.8 |
190 |
79 |
143.8 |
279.4 |
34.9 |
8 |
32.14 |
| 6 |
380 |
215.9 |
55.6 |
235 |
86 |
170.7 |
317.5 |
31.8 |
12 |
41.04 |
| 8 |
470 |
269.9 |
63.5 |
298 |
102 |
221.5 |
393.7 |
38.1 |
12 |
70.97 |
| 10 |
545 |
323.8 |
69.9 |
368 |
108 |
276.2 |
469.9 |
38.1 |
16 |
100.32 |
| 12 |
610 |
381.0 |
79.4 |
419 |
117 |
327.0 |
533.4 |
38.1 |
20 |
133.26 |
| 14 |
640 |
412.8 |
85.8 |
451 |
130 |
359.2 |
558.8 |
41.3 |
20 |
152.57 |
| 16 |
705 |
469.9 |
88.9 |
508 |
133 |
410.5 |
616.0 |
44.5 |
20 |
185.15 |
| 18 |
785 |
533.4 |
101.6 |
565 |
152 |
461.8 |
685.8 |
50.8 |
20 |
256.28 |
| 20 |
855 |
584.2 |
108.0 |
622 |
159 |
513.1 |
749.3 |
54.0 |
20 |
315.13 |
| 24 |
1040 |
692.2 |
139.7 |
749 |
203 |
616.0 |
901.7 |
66.7 |
20 |
603.79 |
Note: 7 mm raised face regularly furnished on Classes 150 and 300 unless otherwise ordered.
