Air Flow Through Orifices
Volume of free air in CFM that will flow thru round holes from a receiver into the atmosphere. Cubic feet of air per minute measured at absolute pressure of 14.7 lbs. per sq. in. and 70¼ F.
Dia. of Orifice (In.)
Guage Pressure in Reciever - Pounds
2
5
10
15
20
25
30
35
40
45
50
60
70
80
90
100
125
150
200
1/64
0.04
0.062
0.077
0.105
0.123
0.14
0.158
0.176
0.194
0.211
0.29
0.267
0.3
0.335
0.37
0.406
0.494
0.583
0.75
1/32
0.248
0.311
0.42
0.491
0.562
0.633
0.703
0.774
0.845
0.916
1.06
1.2
1.34
1.48
1.62
1.98
2.32
3.18
3/64
0.356
0.568
0.712
0.944
1.1
1.26
1.42
1.58
1.75
1.91
2.06
2.38
2.7
3
3.33
3.66
4.44
5.25
6.86
1/16
0.993
1.24
1.68
1.96
2.25
2.53
2.81
3.1
3.38
4.23
4.79
5.36
5.92
6.49
7.9
9.1
12.17
3/32
1.43
2.23
2.8
3.78
1395/05/23 - 11:42
