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Home > Techtables > Vacuum Flow Table
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Vacuum
Flow Through Orifices in SCFM |
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Orifice
Diameter (In)" |
Vacuum
in inches of mercury |
| 2" |
4" |
6" |
8" |
10" |
12" |
14" |
18" |
24" |
| 1/64" |
.018 |
.026 |
.032 |
.037 |
.041 |
.045 |
.048 |
.055 |
.063 |
| 1/32" |
.074 |
.100 |
.128 |
.148 |
.165 |
.180 |
.195 |
.220 |
.250 |
| 1/16" |
.300 |
.420 |
.517 |
.595 |
.660 |
.725 |
.780 |
.880 |
1.00 |
| 1/8" |
1.20 |
1.68 |
2.06 |
2.37 |
2.64 |
2.89 |
3.12 |
3.53 |
4.04 |
| 1/4" |
4.78 |
6.74 |
8.25 |
9.52 |
10.6 |
11.6 |
12.4 |
14.0 |
16.2 |
| 3/8" |
10.8 |
15.2 |
18.5 |
21.4 |
23.8 |
26.0 |
28.0 |
31.8 |
36.4 |
| 1/2" |
19.1 |
27.0 |
33.0 |
38.5 |
42.3 |
46.3 |
50.0 |
65.5 |
64.6 |
| 5/8" |
30.0 |
42.2 |
51.7 |
59.5 |
66.2 |
72.6 |
78.0 |
88.0 |
101 |
| 3/4" |
43.0 |
60.6 |
74.0 |
85.3 |
95.2 |
104 |
112 |
127 |
145 |
| 7/8" |
58.8 |
82.6 |
101 |
116 |
130 |
142 |
153 |
173 |
198 |
| 1" |
76.5 |
108 |
131 |
152 |
169 |
185 |
200 |
225 |
258 |
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