1. Basics of spraying technique I Ideal sprayer / accessory for the ideal application

2. What can I optimise with the ideal sprayer? Goal: The right sprayer for the right application Improved effect/efficiency Time saving Saving of chemicals and spray liquid Cost reduction Improved comfort Increased safety Economic use of resources and protection of enviroment

3. What do I achieve with the right sprayer? Customer appreciation / acceptance Professional image creation Securing orders /repeat orders Winning new customers Open new earning segments Creating synergies with other products (e.g. chemicals)

4. Criterias for the right choice of a sprayer Goal: Economic and enviromental sound solutions Which spray media? Water solution (pH 7) Acid (pH 1) Alkaline (pH 14) Solvent…. Which unit? Volume (0.5l till 100l) Application = Chemical = Material of sprayer Accessory

5. Chemical resistance for industrial applications

6. Basics of spraying technique II Spray technique Theory and Praxis

7. Trigger- Sprayer Variations of sprayers Hand- Compression Sprayer Knapsack- Sprayer Stainless Steel- Compression Sprayer Engine Sprayer

8. Major parts of a sprayer

9. Influence of the nozzle Spray pattern (Nozzle type resp. nozzle shape) Spray volume (Nozzle diameter + Pressure) Troplet size (Nozzle type + Pressure + Volume)

10. Hollow cone pattern Uniform coverage (Full cone) Full jet spray pattern Flat spray pattern (Fanjet) Tapered edges Full coverage edges Table 1: Spray pattern

11. Mist nozzle brass steel plate stainless steel Duro mist nozzle

12. Nozzle body plastic / Nozzle stainless steel Fanjet nozzle

13. Adjustable brass nozzle Adjustable nozzle

14. NozzleMaterial VMD (μm) at a pressure (bar) of: 11.5236 Duro-mist nozzle 0.8 mmBrass/steel42829823013988 Duro-mist nozzle 1.0 mmBrass/steel37326320014094 Duro-mist nozzle 1.3 mmBrass/steel311207172137110 Duro-mist nozzle 1.5 mmBrass/steel311210173135122 Duro-mist nozzle 1.65 mmBrass/steel278199163134122 Adjustable nozzle 1.7 mmBrass266160134110 Adjustable nozzle 1.3 mmBrass707535439491 Droplet size (μm)Classification 51-100Mist 101-200Fine spray 201-300Medium spray >300Coarse spray Table 2: Droplet size diameter of nozzle As bigger the diameter and lower the pressure, as bigger the troplet size!

15. NozzleMaterial Tropfenanteil <105 μm in % bei Druck (bar) von 11.5236 Duro-mist nozzle 0.8 mmBrass/steel3,810,616,235,661,8 Duro-mist nozzle 1.0 mmBrass/steel7,413,121,035,456,3 Duro-mist nozzle 1.3 mmBrass/steel8,319,126,636,647,9 Duro-mist nozzle 1.5 mmBrass/steel8,219,126,537,642,9 Duro-mist nozzle 1.65 mmBrass/steel10,621,328,637,743,1 Adjustable nozzle 1.7 mmBrass9,725,333,747,0 Adjustable nozzle 1.3 mmBrass1,62,64,42,0 Table 3: Troplet part <105 μm in % (Drift and aerosol sensitivity) As smaller the nozzle diameter and as higher the pressure, as higher the small troplet share

16. ApplicationNozzle TypeApplication l / ha spay volume at 50 cm reach * SprayApplication Cone (full or hollow) FanjetDeflector Press ure (bar) Wind speed (m/s) Iso Düse 015 Iso Düse 02 Iso Düse 03 Iso Düse 04 Iso Düse 05 Herbizide, System Fungizide Groundno very good 1.0 0.8 0.34 l/min 140 0.46 l/min 190 0.68 l/min 280 0.91 l/min 370 1.14 l/min 460 1.0110150230300370 Kontakt Fungizide, Insektizide Ground very good good2.0 0.8 0.48 l/min 200 0.65 l/min 265 0.96 l/min 400 1.29 l/min 375 1.61 l/min 470 1.0160210320420520 Kontact Fungizide Insectizide Tries and bushes very good goodno3.0 0.8 0.59 l/min 250 0.79 l/min 325 1.18 l/min 490 1.58 l/min 650 1.97 l/min 810 1.0200260390520650 * ) eine Strahlweite von 1 m halbiert das angegebene Sprühvolumen A)Anwendung bestimmt den Düsetyp & Druck (prüfen via l/min) B)Geschwindigkeit festlegen C)Gewünschtes Sprühvolumen bestimmt die Düsengrösse Table 4: Nozzle and spray volume (for good performance and safety) Birchmeier Sprühtechnik AG / 2007 ©

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