Spray Tip Update
Nozzle Technology
• Nozzles designed to reduce drift• Improved drop size control• Emphasis on ‘Spray Quality’
Nozzles are important because:
• Control the amount – GPA.• Determine uniformity of application.
• Affects the coverage.• Influences the drift potential.
Spray Characteristics are Important to Understand:
Demonstrates Turbo Flat vs TurboDrop-5 MPH Wind
110110oo 8080oo
Nozzles Types?
Extended Range Flat-fan:• Tapered edge pattern• 80 and 110 degree fan• Requires overlap - 50 to 60%• 15-60 psi range
110°
80°
Nozzles Types?
Turbo Flat-fan: Turbulence chamber Tapered edge, wide angle flat pattern Designed to work in flat-fan nozzle holder Uniform spray distribution, 50-60% overlap Wide pressure range, 15 – 90 psi Large, drift resistant droplets Plastic with superior wear characteristics
TT
XR
Nozzles Types?
Air-Induction/Venturi NozzlesAir is drawn into the nozzle cavity
Exits with the fluid.
Air/Induction – Venturi Nozzle:
Air intake venturi section
Spraying Systems AI TeeJet
Mixing Chamber - air and spray solution blended
Exit orifice
Better Penetration?Improved coverage?Reduced drift? YES!!!
Air/Induction – Venturi Nozzle:• Greenleaf –
TurboDrop• Air intake venturi
section• Mixing Chamber - air
and spray solution blended
• Pattern tip forms large air-bubble drops
XR Turbo Flat-fan compared to XR Turbo Flat-fan compared to A.I.A.I.
XR vs TurboDrop Turbo Flat vs TurboDrop
Driftable Droplets: Spraying Systems-2000
Nozzle Type(0.5 GPM Flow)
Approximate % of SprayVolume < 200 Microns
15 PSI 40 PSI
XR 11005 14% 22%
XR 8005 6% 12%
DG 11005 N/A 11%
DG 8005 N/A 7%
TT 11005 <1% <6%
TF-2.5 <1% <1%
AI 11005 N/A <1%
Final thoughts:• Due to weather, all nozzle produce small
droplets– high temperature, low humidity = high temperature, low humidity =
smaller dropssmaller drops– evaporationevaporation
• Match nozzle to pest – watch for drift• Venturi tips
– Good for systemic or contact herbicides.Good for systemic or contact herbicides.– Performance over a wide range of Performance over a wide range of
pressurespressures– Minimize spray drift potentialMinimize spray drift potential– Maximizing performance.Maximizing performance.
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