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Compressor Air and Abrasive Consumption Estimates
Pressure Loss in Compressor Air Line
Minimum Compressor Air Line Diameter
Blast Media Characteristics Comparison
Effects of Nozzle Wear on Air Consumption
Blast System Air Volume Estimates

Blast System Air Volume Estimates

Nozzle Size of
Orifice
Volume
of Air
Plus
Helmet
Plus 50%
(reserve)
Minimum Air
Required
No. 4 1/4"
6.5mm
81
2.3
20
0.5
50
1.4
151 cfm
4.2 m3/min
No. 5 5/16"
8.0mm
137
3.9
20
0.5
79
2.2
236 cfm
6.6m3/min
No.6 3/8"
9.5mm
196
5.5
20
0.5
108
3.0
324 cfm
9.0 m3/min
No. 7 7/16"
11.0mm
254
7.2
20
0.5
137
3.9
411 cfm
11.6 m3/min
No. 8 1/2"
12.5mm
338
9.6
20
0.5
179
5.0
537 cfm
16.1 m3/min

 


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