|
Flow
of air through an orifice in SCFM
| Orifice Diameter (In)" |
2 |
5 |
10 |
15 |
20 |
25 |
30 |
35 |
40 |
45 |
| 1/64" |
.024 |
.040 |
.061 |
.079 |
.096 |
.113 |
.129 |
.145 |
.161 |
.177 |
| 1/32" |
.098 |
.161 |
.243 |
.319 |
.384 |
.451 |
.516 |
.581 |
.645 |
.709 |
| 3/64" |
.22 |
.363 |
.547 |
.71 |
.86 |
1.01 |
1.16 |
1.31 |
1.45 |
1.59 |
| 1/16" |
.391 |
.645 |
.972 |
1.26 |
1.54 |
1.80 |
2.07 |
2.32 |
2.58 |
2.84 |
| 3/32" |
.881 |
1.45 |
2.19 |
2.84 |
3.46 |
4.06 |
4.65 |
5.23 |
5.81 |
6.38 |
| 1/8" |
1.57 |
2.58 |
3.89 |
5.05 |
6.15 |
7.21 |
8.26 |
9.30 |
10.3 |
11.3 |
| 3/16" |
3.52 |
5.80 |
8.75 |
11.4 |
13.8 |
16.2 |
18.6 |
20.9 |
23.2 |
25.5 |
| 1/4" |
6.26 |
10.3 |
15.6 |
20.2 |
24.6 |
28.9 |
33.0 |
37.2 |
41.3 |
45.4 |
| 3/8" |
14.1 |
23.2 |
35.0 |
45.4 |
55.3 |
64.9 |
74.4 |
83.7 |
92.9 |
102 |
| 1/2" |
25.1 |
41.3 |
62.2 |
80.8 |
98.4 |
115 |
132 |
149 |
165 |
181 |
| 5/8" |
39.1 |
64.5 |
97.2 |
126 |
154 |
180 |
207 |
232 |
258 |
284 |
| 3/4" |
56.4 |
92.9 |
140 |
182 |
221 |
260 |
297 |
335 |
372 |
408 |
| 7/8" |
76.7 |
126 |
191 |
247 |
301 |
354 |
405 |
455 |
506 |
556 |
| 1" |
100 |
165 |
249 |
323 |
393 |
462 |
529 |
595 |
661 |
726 |
| 1-1/8" |
127 |
209 |
315 |
409 |
498 |
584 |
669 |
753 |
836 |
919 |
| 1-1/4" |
157 |
258 |
389 |
505 |
615 |
721 |
826 |
930 |
1032 |
1134 |
| 1-3/8" |
189 |
312 |
471 |
611 |
744 |
893 |
1000 |
1125 |
1249 |
1372 |
| 1-1/2" |
225 |
371 |
560 |
727 |
885 |
1039 |
1190 |
1339 |
1486 |
1633 |
| 1-3/4" |
307 |
506 |
762 |
990 |
1205 |
1414 |
1619 |
1822 |
2023 |
2223 |
| 2" |
401 |
660 |
996 |
1293 |
1574 |
1847 |
2115 |
2380 |
|
|
| Orifice Diameter (In)" |
50 |
60 |
70 |
80 |
90 |
100 |
125 |
150 |
200 |
| 1/64" |
.193 |
.225 |
.256 |
.287 |
.319 |
.350 |
.428 |
.506 |
.661 |
| 1/32" |
.772 |
.898 |
1.02 |
1.15 |
1.27 |
1.40 |
1.71 |
2.02 |
2.64 |
| 3/64" |
1.74 |
2.02 |
2.30 |
2.59 |
2.87 |
3.15 |
3.85 |
4.55 |
5.95 |
| 1/16" |
3.09 |
3.59 |
4.10 |
4.60 |
5.10 |
5.60 |
6.85 |
8.09 |
10.6 |
| 3/32" |
6.95 |
8.09 |
9.22 |
10.3 |
11.5 |
12.6 |
15.4 |
18.2 |
23.8 |
| 1/8" |
12.4 |
14.4 |
16.4 |
18.4 |
20.4 |
22.4 |
27.4 |
32.4 |
42.3 |
| 3/16" |
27.8 |
32.3 |
36.9 |
41.4 |
45.9 |
50.4 |
61.6 |
72.8 |
95.2 |
| 1/4" |
49.4 |
57.5 |
65.5 |
73.6 |
81.6 |
89.6 |
110 |
129 |
169 |
| 3/8" |
111 |
129 |
147 |
166 |
184 |
202 |
246 |
291 |
381 |
| 1/2" |
198 |
230 |
262 |
294 |
326 |
358 |
438 |
518 |
677 |
| 5/8" |
309 |
359 |
410 |
460 |
510 |
560 |
685 |
809 |
1058 |
| 3/4" |
445 |
518 |
590 |
662 |
734 |
806 |
986 |
1165 |
1523 |
| 7/8" |
605 |
704 |
803 |
901 |
999 |
1097 |
1342 |
1586 |
2073 |
| 1" |
791 |
920 |
1049 |
1177 |
1305 |
1433 |
1752 |
2071 |
|
| 1-1/8" |
1001 |
1164 |
1327 |
1490 |
1652 |
1814 |
2218 |
|
|
| 1-1/4" |
1236 |
1438 |
1639 |
1839 |
2039 |
2239 |
|
|
|
| 1-3/8" |
1495 |
1739 |
1983 |
2226 |
2468 |
|
|
|
|
| 1-1/2" |
1779 |
2070 |
2360 |
|
|
|
|
|
|
| 1-3/4" |
2422 |
|
|
|
|
|
|
|
|
|
