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48
Chemical Feed Systems – HP Spray Nozzles
HP Spray Nozzles
NOZZLE FLOW RATES & NOZZLE NUMBERS
A commonly used standard for nozzle size selection is the “nozzle number” which is equivalent to the nozzle capacity
in GPM at 4,000 PSI. Spray angle does not affect nozzle volume.
Nozzle Size = GPM x [Square Root (4000/PSI)] Example: 5 GPM at 1500 is a 8.0 nozzle
Nozzle
Size
Orifice
Diam.
(inch)
NOZZLE PRESSURE - PSI
40
100
250
500
600
700
800
1000 1200 1500 2000 2500 3000 3500 4000
NOZZLE FLOW RATE – GALLONS PER MINUTE (GPM)
1
0.026
.10
.16
.25
.35
.38
.41
.44
.50
.54
.61
.72
.78
.88
.95
1.00
1.5
0.031
.15
.24
.38
.53
.58
.63
.67
.75
.82
.92
1.10
1.20
1.30
1.40
1.50
2
0.036
.20
.32
.50
.71
.77
.84
.89
1.00
1.10
1.20
1.40
1.60
1.70
1.90
2.00
2.5
0.040
.25
.40
.59
.88
.99
1.07
1.14
1.25
1.35
1.50
1.70
2.00
2.20
2.40
2.50
3
0.043
.30
.47
.69
1.10
1.20
1.30
1.40
1.50
1.65
1.80
2.10
2.40
2.60
2.80
3.00
3.5
0.048
.35
.55
.71
1.25
1.40
1.50
1.60
1.75
1.93
2.15
2.45
2.80
3.15
3.30
3.50
4
0.052
.40
.63
1.00
1.40
1.60
1.70
1.80
2.00
2.20
2.50
2.80
3.20
3.50
3.80
4.00
4.5
0.055
.45
.71
1.10
1.60
1.70
1.90
2.00
2.30
2.40
2.80
3.20
3.60
3.90
4.30
4.50
5
0.057
.50
.79
1.30
1.80
1.90
2.10
2.20
2.50
2.80
3.10
3.50
4.00
4.40
4.70
5.00
5.5
0.060
.55
.87
1.40
1.90
2.10
2.30
2.50
2.80
3.00
3.40
3.90
4.40
4.80
5.20
5.50
6
0.062
.60
.95
1.50
2.30
2.30
2.50
2.70
3.00
3.20
3.70
4.20
4.70
5.20
5.60
6.00
6.5
0.064
.65
1.00 1.70
2.40
2.50
2.70
2.90
3.30
3.60
4.00
4.60
5.10
5.50
6.00
6.50
7
0.067
.70
1.10 1.80
2.50
2.70
2.90
3.10
3.50
3.80
4.30
4.90
5.50
5.60
6.60
7.00
7.5
0.070
.75
1.20 1.90
2.70
2.90
3.10
3.40
3.80
4.10
4.60
5.30
5.90
6.10
7.00
7.50
8
0.072
.80
1.30 2.00
2.80
3.10
3.40
3.60
4.00
4.40
4.90
5.70
6.30
6.90
7.50
8.00
8.5
0.074
.85
1.30 2.20
3.00
3.30
3.60
3.80
4.30
4.60
5.30
6.00
6.70
7.40
8.00
8.50
9
0.076
.90
1.40 2.30
3.20
3.50
3.80
4.00
4.50
5.00
5.50
6.40
7.10
7.80
8.50
9.00
10
0.080 1.00 1.60 2.50
3.50
3.90
4.20
4.50
5.00
5.40
6.10
7.10
7.90
8.70
9.40 10.00
12
0.087 1.20 1.90 3.00
4.20
4.60
5.00
5.40
6.00
6.40
7.30
8.40
9.50 10.40 11.20 12.00
14
0.091 1.40 2.23 3.52
4.90
5.40
5.90
6.30
7.00
7.60
8.60
9.90 11.10 12.10 13.10 14.00
15
0.094 1.50 2.40 3.80
5.30
5.80
6.40
6.80
7.50
8.20
9.20 10.60 12.00 12.90 14.00 15.00
20
0.109 2.00 3.20 5.00
7.10
7.70
8.40
8.90 10.00 10.80 12.30 14.10 15.80 17.30 18.80 20.00
30
0.141 3.00 4.70 7.50 10.60 11.60 12.80 13.60 15.00 16.40 18.40 21.20 24.00 26.00 28.00 30.00
40
0.156 4.00 6.30 10.00 14.20 16.60 16.80 18.00 20.00 21.60 24.40 28.40 32.00 34.80 37.60 40.00
