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AB20020
flat uniform sprayer Pattern
6” to 7”
40”
Nozzle spacing
floodjeT TIPs
foR BRoAdCAsT sPRAyING
liquid
Capacity
Gallons Per Acre
Nozzle
orifice
Pressure
In
4
5
6
8
10
No.
dia.
In PsI.
GPm.
mPh
mPh
mPh
mPh
mPh
TKss2
.046”
10
.20
7.4
6.0
4.9
3.7
3.0
20
.28
10.5
8.4
6.9
5.2
4.2
30
.35
12.9
10.3
8.7
6.5
5.2
40
.40
14.8
11.8
9.9
7.5
5.9
TKss2.5
.052”
10
.25
9.3
7.4
6.1
4.6
3.7
20
.35
12.9
10.3
8.7
6.5
5.2
30
.43
15.9
12.8
10.6
8.0
6.4
40
.50
18.6
14.9
12.4
9.3
7.4
TKss3
.057”
10
.30
11.1
8.9
7.5
5.6
4.5
20
.42
15.7
12.6
10.4
7.8
6.3
30
.52
19.3
15.4
12.8
9.7
7.7
40
.60
22.0
17.8
14.8
11.2
8.9
TKss4
.065”
10
.40
14.9
11.9
9.9
7.5
5.9
20
.57
21.0
16.8
13.9
10.5
8.4
30
.69
26.0
21.0
17.1
12.8
10.3
40
.80
30.0
24.0
19.8
14.8
11.9
TKss5
.073”
10
.50
18.6
14.9
12.4
9.3
7.4
20
.71
27.0
21.0
17.6
13.1
10.7
30
.87
33.0
26.0
21.7
16.1
13.1
40
1.00
38.0
30.0
25.2
18.6
15.1
TKss7.5
.091
10
.75
28.0
22.0
18.7
14.0
11.1
20
1.10
39.0
32.0
26.4
19.8
15.8
30
1.30
49.0
39.0
31.9
24.1
19.3
40
1.50
56.0
45.0
37.4
27.5
22.0
Other Spacing
20
24
28
30
32
34
36
38
40
42
44
Conversion Factor
2
1.67 1.43 1.33 1.25 1.18 1.11 1.05 1.00 .95
.91
figure A
The rate chart is based on 40 inch row spacings. for
other spacings of nozzles on the boom, multiply the tabu-
lated GPA coverage by the conversion factors shown
below.
Floodjet tips are positioned as shown in the diagram by
the chart below. When positioning the tip as shown in Fig-
ure A the tip can be operated closer to the ground, thereby
reducing the chance of wind drift.
The chart below shows capacities in gallons per acre at
various speeds and liquid pressures. Capacities are based
on water at 70 ° F. with nozzles spaced at 40”.
Gallons Per Acre
liquid Nozzle
Based on 20” Nozzle spacing
Nozzle Presure Capacity
4
5
7.5
10
No.
In PsI. In GPm. mPh
mPh
mPh
mPh
8002
20
.14
10.5
8.4
5.6
4.2
25
.16
11.8
9.4
6.3
4.7
30
.17
12.9
10.3
6.9
5.2
40
.20
14.8
11.8
7.9
5.9
8003
20
.21
15.7
12.6
8.4
6.3
25
.24
17.6
14.1
9.4
7.1
30
.26
19.0
15.4
10.3
7.7
40
.30
22.0
17.8
11.8
8.9
8004
20
.28
21.0
16.8
11.2
8.4
25
.32
24.0
18.7
12.5
9.4
30
.35
26.0
21.0
13.7
10.3
40
.40
30.0
24.0
15.8
11.9
8005
20
.35
26.0
21.0
14.0
10.5
25
.40
29.0
23.0
15.7
11.7
30
.43
32.0
26.0
17.2
12.9
40
.50
37.0
30.0
19.8
14.9
NoTe:
To avoid wind drift, use lower pressure and higher spray volume.
Guidelines for sprayer Calibration
Before calibrating your sprayer, first determine whether each nozzle is delivering at a uniform rate. Place quart jars under
all nozzles and watch as they fill up. The level should rise uniformly and take the same time (within 10%) for all nozzles to
fill the jars. Replace any nozzle showing a discharge rate different from the others.
Calibrating the sprayer
1.
Mark off 660 feet (1/8 mile).
2.
Fill the tank with water.
3.
Set the sprayer to your desired operating pressure.
4.
Turn the sprayer on and drive at the constant speed you will be spraying. Calibration on a road or unplowed
field will give different results than on soft cultivated ground.
Note
tachometer reading so same speed
can be maintained later.
5.
Measure the amount of water it takes to refill the tank completely.
6.
Calculate the amount applied:
Number of gallons used x 66 (factor)
Gallons applied
=
Spray Swath in Feet
per acre
example:
If 10 gallons are used in 660 feet and the spray swath is 40 feet, spraying rate is 16.5 gallons per acre.
10 x 66
660
=
or 16.5 gallons per acre
40
40
7.
To calculate the amount of chemical to put in the tank:
Sprayer Tank Size
Acres
=
then;
Desired GPA
covered
Recom. amount of chemical
Acres
Amt. of chemical
x
per acre
covered
per tankful
example:
If a 500 gallon tank is used and 16.5 gallons per acre are applied,
one tank will cover 30.3 acres. If three pounds of chemical are required per
acre, then 90.0 pounds of chemical are required per tankful.
500
= 30.3 acres covered then;
16.5
3 lbs. (gal.) x 30.3 = 90.0 lbs. (gal.) per tankful
=
flAT sPRAy Nozzle
foR BRoAdCAsT sPRAyING
SPRAYER cALIBRATION PROcEDURES