Nozzle%20Technology - PowerPoint PPT Presentation

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Nozzle%20Technology

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Title: Coalition on Drift Minimization Author: Robert E. Wolf Last modified by: rewolf Created Date: 5/5/1998 3:49:06 AM Document presentation format – PowerPoint PPT presentation

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Title: Nozzle%20Technology


1
Nozzle Technology
  • Nozzles designed to reduce drift
  • Improved drop size control
  • Emphasis on Spray Quality

2
Nozzles Types?
air induced
chamber
Flat Spray Patterns
flat-fan
3
Extended Range Flat-fan
  • Tapered edge pattern
  • 80 and 110 degree fan
  • Requires overlap - 50 to 60
  • 15-60 psi range

Unless - working with higher application
volumes 10 GPA and above - Fungicides
4
Turbo Flat-fan
chamber
Pre-orifice
  • Turbulence chamber as in the Turbo Flood
  • 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

Exit orifice
5
Recent release
See Page 10, TeeJet Catalog 50A
  • Dual outlet
  • Superior leaf coverage
  • Droplet range slightly larger that comparable TT
    flat-fan

Turbo TwinJet
6
Pre-orifice Air Induction Nozzles
Pre-orifice
Air induction
Mixing Chamber
Exit orifice
7
Next Generation Air Induction Nozzles
See Page 11, TeeJet Catalog 50A
  • More compact
  • Larger drops
  • Operates at lower pressures
  • Percentage of fines do not increase with pressure

Turbo Injection - TTI
8
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9
New release in 2007
See Page 14, TeeJet Catalog 50A
  • XR outlet with venturi air aspirator design
  • More compact than AI style
  • 2-piece with removable pre-orifice

AI XR TeeJet
10
GuardianAir Induction
  • More consistent droplet
  • All-in-one cap and screen
  • Wide angle with 15 degree incline toward the rear
  • Aim forward or rearword alternate?

GuardianAir
See Page 16, Hypro Spray Tip Guide
11
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(No Transcript)
13
2008 Test Nozzles!
Air Mix TDHSTF- Greenleaf
Turbo TwinJet
AI XR TeeJet
Guardian GuardianAir - Hypro
14
Materials and Methods cont.
  • Turbo Flat-fan (TT)
  • AIXR Flat-fan
  • Air Mix (AM)
  • GuardianAir (GA)
  • Turbo Twin Flat-fan (TTJ60)

70 PSI
  • AIC Flat-fan
  • TDHSTF
  • Ultra Lo Drift (ULD)


40 PSI



15
Percent Control by Nozzle TypeGlyphosate - 28 DAT
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16
Percent Control by Nozzle TypeParaquat - 28 DAT
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17
Nozzle Efficacy/Drift Slope
Reducing Spray Drift
Extended Range
Nozzle development timeline
  • XR, TR
  • Turbo TeeJet
  • Air Mix
  • AI XR
  • GuardianAir
  • AI
  • Ultra Low Drift
  • Turbo Drop
  • TTI

Chamber Design
Venturi Design - II
Venturi Design - I
Efficacy
18
Nozzles-Recommended Use
20-25 PSI
flat spray
chamber
30-40 PSI
40 PSI
IN BETWEEN VENTURI
air induced/venturi
50-80 PSI
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