| Dimensions of Steel Class Flange Faces ANSI |
| |
 |
| For value of C see Dimensions of Class Flanges - Steel Class 300 , Class 150 |
| |
| Dimensions of Flanges Faces |
| |
Nominal
Pipe size |
R |
S |
T |
U |
W |
X |
Y |
Z |
L |
K |
| DN |
in |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
| 15 |
1/2 |
34.9 |
18.3 |
34.9 |
25.4 |
36.5 |
19.8 |
36.5 |
23.8 |
46.0 |
44.4 |
| 20 |
3/4 |
42.9 |
23.8 |
42.9 |
33.3 |
44.4 |
25.4 |
44.4 |
31.7 |
54.0 |
52.4 |
| 25 |
1 |
50.8 |
30.2 |
47.6 |
38.1 |
52.4 |
31.8 |
49.2 |
36.5 |
61.9 |
57.2 |
| 40 |
1 1/2 |
73.0 |
44.4 |
63.5 |
54.0 |
74.6 |
46.0 |
65.1 |
52.4 |
84.1 |
73.0 |
| 50 |
2 |
92.1 |
57.2 |
82.6 |
73.0 |
93.7 |
58.7 |
84.1 |
71.4 |
103.2 |
92.1 |
| 65 |
2 1/2 |
104.8 |
68.3 |
95.3 |
85.7 |
106.4 |
69.9 |
96.8 |
84.1 |
115.9 |
104.8 |
| 80 |
3 |
127.0 |
84.1 |
117.5 |
107.9 |
128.6 |
85.7 |
119.1 |
106.4 |
138.1 |
127.0 |
| 100 |
4 |
157.2 |
109.5 |
144.5 |
131.8 |
158.8 |
111.1 |
146.1 |
130.2 |
168.3 |
157.2 |
| 125 |
5 |
185.7 |
136.5 |
173.0 |
160.3 |
187.3 |
138.1 |
174.6 |
158.7 |
196.9 |
185.7 |
| 150 |
6 |
215.9 |
161.9 |
203.2 |
190.5 |
217.5 |
163.5 |
204.8 |
189.9 |
227.0 |
215.9 |
| 200 |
8 |
269.9 |
212.7 |
254.0 |
238.1 |
271.5 |
214.3 |
255.8 |
236.5 |
281.0 |
269.9 |
| 250 |
10 |
323.8 |
266.7 |
304.8 |
285.7 |
325.4 |
268.3 |
306.3 |
284.1 |
335.0 |
323.8 |
| 300 |
12 |
381.0 |
317.5 |
362.0 |
342.9 |
382.6 |
319.1 |
363.5 |
341.3 |
392.1 |
381.0 |
| 350 |
14 |
412.8 |
349.3 |
393.7 |
374.6 |
414.3 |
350.8 |
395.3 |
373.1 |
423.9 |
412.8 |
| 400 |
16 |
469.9 |
400.1 |
447.7 |
425.4 |
471.5 |
401.6 |
449.3 |
423.9 |
481.0 |
469.9 |
| 450 |
18 |
533.4 |
450.9 |
511.2 |
488.9 |
535.0 |
452.4 |
512.8 |
487.4 |
544.5 |
533.4 |
| 500 |
20 |
584.2 |
501.7 |
558.8 |
533.4 |
585.8 |
503.2 |
560.4 |
531.8 |
595.3 |
584.2 |
| 600 |
24 |
692.2 |
603.3 |
666.8 |
641.3 |
693.7 |
604.8 |
668.3 |
639.8 |
703.3 |
692.2 |
|
| |
|
