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Nozzle Spacing
If the nozzle spacing on your boom is different than those tabulated, multiply the tablulated GPA (l/ha) coverages by one of the following factors.
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20" (50 cm)
Nozzle Spacing
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30" (75 cm)
Nozzle Spacing
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40" (100 cm)
Nozzle Spacing
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Other Spacing
inches (cm)
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Conversion
Factor
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Other Spacing
inches (cm)
|
Conversion
Factor
|
Other Spacing
inchese (cm)
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Conversion
Factors
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8 (20)
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2.5
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26 (40)
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1.15 (1.88)
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28 (70)
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1.43
|
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10 (25)
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2
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28 (45)
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1.07 (1.67)
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30 (75)
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1.33
|
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12 (30)
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1.67
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32 (50)
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.94 (1.5)
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32 (80)
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1.25
|
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14 (35)
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1.43
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34 (60)
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.88 (1.25)
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34 (85)
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1.18
|
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16 (40)
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1.25
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36 (70)
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.83 (1.07)
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36 (90)
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1.11
|
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18 (45)
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1.11
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38 (80)
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.79 (.94)
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38 (95)
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1.05
|
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22 (60)
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.91 (.83)
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40 (90)
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.75 (.83)
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42 (105)
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.95
|
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24 (70)
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.83 (.71)
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42 (110)
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.71 (.68)
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44 (110)
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.91
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30 (75)
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.66
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44 (120)
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.68 (.63)
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48 (120)
|
.83
|
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Suggested Minimum Spray Heights
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The nozzle height suggestions in the table below are based on the minimum overlap required to obtain uniform distribution. However, in many cases, typical height adjustments are based on a 1 to 1 nozzle spacing to height ratio. For example, 110° flat spray tips spaced 20 inches (50 cm) apart are commonly set 20 inches (50 cm) above the target.
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Tip
|
Nozzle Height in Inches (cm)
|
|
Spray
Angle
|
Nozzle Spacing
20" (50 cm)
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Nozzle Spacing
30" (75 cm)
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Nozzle Spacing
40" (100 cm)
|
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TeeJet Standard, TJ
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65°
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22-24" (75)
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33-35" (100)
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NR*
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TeeJet, XR, TX, DG, TJ
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80°
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17-19" (60)
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26-28" (80)
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NR*
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TeeJet, XR, DG, TT, TTI, TJ,
DGTJ, AI, AIXR
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110°
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16-18" (40)
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20-22" (60)
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NR*
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FullJet
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120°
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10-18" (40)**
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14-18" (60)**
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14-18" (75)**
|
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FloodJet, TK, TF
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120°
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14-16" (40)***
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15-17" (60)***
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18-20" (75)***
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| * |
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Not recommended. |
| ** |
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Nozzle height based on 30° to 45° angle of orientation. |
| *** |
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Wide angle spray tip height is influenced by nozzle orientation. The critical factor is to achieve a double spray pattern overlap. |
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