81
Since all the tabulations in the catalog are based on spraying water, you will need to use a conversion
factor when spraying liquids are a different weight than water. This information is found in the Spray Products
catalog.
Below is an example of how to choose the proper nozzle:
Joe is spraying 28% nitrogen. The chemical manufacturer recommends that the chemical be sprayed at
20 GPA. Joe knows that he can run his sprayer at 10 MPH across his field. He has a 20” nozzle spacing on
his booms. Joe has narrowed his tip search to the flat spray tips.
Using the following conversion formula:
20 GPA (liquid other than water) x 1.13 (conversion factor) = 22.6 GPA (water)
Joe determined that he needs an application rate of 22.6 GPA to determine the correct nozzle to apply
28% nitrogen at 20 gallons per acre.
To figure out which nozzle is better for his use, Joe has to figure out the GPM he needs to spray.
GPM = GPA x MPH x Spacing
GPM = 22.6x10x20
GPM = 4520
GPM = 0.76
5940 (constant)
5940
5940
The nozzle that best matches the specifications set by Joe is the TP8008, spraying 22 GPA at a rate of
0.75 GPM. If Joe maintains a constant speed, he should have a successful chemical application.
These calculations are based on a 20” spacing, refer to the Spray Products catalog for the formula for choosing a spac-
ing other than 20”.
NOZZLE
SIZE
PSI
DROP
SIZE
80 110
CAP. 1
NOZZLE
IN GPM
CAP. 1
NOZZLE
IN
OZ./MIN
4
5
6
8
10
12
15
20
TP8004
30
35
40
50
60
M M
M M
M M
M F
M F
0.35
0.37
0.40
0.45
0.49
45
47
51
58
63
26
27
30
33
36
21
22
24
27
29
17.3
18.3
19.8
22
24
13.0
13.7
14.9
16.7
18.2
10.4
11.0
11.9
13.4
14.6
8.7
9.2
9.9
11.1
12.1
6.4
7.0
7.4
8.3
9.1
5.2
5.5
5.9
6.7
7.3
TP8005
30
35
40
50
60
C M
M M
M M
M M
M F
0.43
0.47
0.50
0.56
0.61
55
60
64
72
78
32
35
37
42
45
26
28
30
33
36
21
23
25
28
30
16.0
17.4
18.6
21
23
12.8
14.0
14.9
16.6
18.1
10.6
11.6
12.4
13.9
15.1
8.5
9.3
9.9
11.1
12.1
6.4
7.0
7.4
8.3
9.1
TP8006
30
35
40
50
60
C M
C M
C M
C M
C M
0.52
0.56
0.60
0.67
0.73
67
72
77
86
93
39
42
45
50
54
31
33
36
40
43
26
28
30
33
36
19.3
21
22
25
27
15.4
16.6
17.8
19.9
22
12.9
13.9
14.9
16.6
18.1
10.3
11.1
11.9
13.3
14.5
7.7
8.3
8.9
9.9
10.8
TP8008
30
35
40
50
60
C C
C C
C C
C M
C M
0.69
0.75
0.80
0.89
0.98
88
96
102
114
125
51
56
59
66
73
41
45
48
53
58
34
37
40
44
49
26
28
30
33
36
20
22
24
26
29
17.1
18.6
19.8
22
24
13.7
14.9
15.8
17.6
19.4
10.2
11.1
11.9
13.2
14.6
GPA
MPH
FLAT SPRAY TIPS
There is more than
one option to
choose from, but
this nozzle offers a
broader range @
the speed he
wishes to travel.
A. RAVEN CONSOLE (SPRAYER)
V.
SYSTEM PROGRAMMING
