COMPRESSED AIR AND ABRASIVE CONSUMPTION
Nozzle
Orifice
Pressure at the Nozzle (psi)
Air (in cfm)
Abrasive
& HP requirements
50
60
70
80
90
100
125
140
No. 2
(1/8”)
11
13
15
17
18.5
20
25
28
Air (cfm)
.67
.77
.88
1.01
1.12
1.23
1.52
1.70
Abrasive (cu.ft./hr
67
77
88
101
112
123
152
170
& lbs/hr)
2.5
3
3.5
4
4.5
5
5.5
6.2
Compressor hp
No.3
(3/16”)
26
30
33
38
41
45
55
62
Air (cfm)
1.50
1.71
1.96
2.16
2.38
2.64
3.19
3.57
Abrasive (cu.ft./hr
150
171
196
216
238
264
319
357
& lbs/hr)
6
7
8
9
10
10
12
13
Compressor hp
No. 4
(1/4”)
47
54
61
68
74
81
98
110
Air (cfm)
2.68
3.12
3.54
4.08
4.48
4.94
6.08
6.81
Abrasive (cu.ft./hr
268
312
354
408
448
494
608
681
& lbs/hr)
11
12
14
16
17
18
22
25
Compressor hp
No. 5
(5/16”)
77
89
101
113
126
137
168
188
Air (cfm)
4.68
5.34
6.04
6.72
7.40
8.12
9.82
11.0
Abrasive (cu.ft./hr
468
534
604
672
740
812
982
1100
& lbs/hr)
18
20
23
26
28
31
37
41
Compressor hp
No. 6
(3/8”)
108
126
143
161
173
196
237
265
Air (cfm)
6.68
7.64
8.64
9.60
10.52
11.52
13.93
15.60
Abrasive (cu.ft./hr
668
764
864
960
1052
1152
1393
1560
& lbs/hr)
24
28
32
36
39
44
52
58
Compressor hp
No. 7
(7/16”)
147
170
194
217
240
254
314
352
Air (cfm)
8.96
10.32
11.76
13.12
14.48
15.84
19.31
21.63
Abrasive (cu.ft./hr
896
1032
1176
1312
1448
1584
1931
2163
& lbs/hr)
33
38
44
49
54
57
69
77
Compressor hp
No. 8
(1/2”)
195
224
252
280
309
338
409
458
Air (cfm)
11.60
13.36
15.12
16.80
18.56
20.24
24.59
27.54
Abrasive (cu.ft./hr
1160
1336
1512
1680
1856
2024
2459
2754
& lbs/hr)
44
50
56
63
69
75
90
101
Compressor hp
*Consumption rates are based on abrasives that weigh 100 pounds per cubic foot.
MINIMUM COMPRESSOR AIR
LINE DIAMETER
Nozzle No.
Nozzle Orifice Size
Minimum Air
Line ID
No. 3
3/16" (5.0 mm)
1" (25.0 mm)
No. 4
1/4" (6.5 mm)
1" (25.0 mm)
No. 5
5/16" (8.0 mm)
1-1/4" (32.0 mm)
No. 6
3/8" (9.5 mm)
1-1/2" (38.0 mm)
No. 7
7/16" (11.0 mm)
2" (50.0 mm)
No. 8
1/2" (12.5 mm)
2" (50.0 mm)
No. 10
5/8" (16.0 mm)
2-1/2" (64.0 mm)
No. 12
3/4" (19.0 mm)
3" (76.0 mm)
NOZZLE SIZE AND AIR CONSUMPTION
Nozzle No.
Orifice Size
Air Flow in CFM
Increase in Air
Consumption
No. 4
1/4" (6.5 mm)
81 cfm
No. 5
5/16" (8.0 mm)
137 cfm
69% more than No.4
No. 6
3/8" (9.5 mm)
196 cfm
43% more than No.5
No. 7
7/16" (11.0 mm)
254 cfm
29% more than No.6
No. 8
1/2" (12.5 mm)
338 cfm
33% more than No.7
PROFILES ARE EXPRESSED IN MILS, MICRONS, OR MILLIMETERS
1 mil
= 1/1000 inch
25 microns
= 1 mil
25.4 millimeters = 1 inch
39 mils
= 1 millimeter
7 | Target Products Ltd. · ABRASIVES