YOUR SPRAY SOLUTION Agricultural Spray Nozzles Agricultural Engineering

LECHLER AGRICULTURAL SPRAY NOZZLES – GOOD FOR YOUR CROP, GOOD FOR THE ENVIRONMENT Lechler is a world leader in nozzle technology. For over 135 years, we have pioneered numerous groundbreaking developments in the field of nozzle technology. Comprehensive nozzle engineering know-how is combined with a deep understanding of application-specific requirements to create products that offer outstanding precision, reliability and durability. Modern plant protection involves more than just the use of environmentally friendly chemicals. It is above all a question of precision. In order to achieve uniform...

PROGRESS MEANS FURTHER DEVELOPMENT Therefore success is not a final state for us, but simply a further step on the way to even greater VarioSelect®, Spray frame CONTENT Page Spray nozzle technology 6-12 Container and tank cleaning 27 Product information Air-injector flat spray nozzles ID3 34 Air-injector flat spray compact nozzles IDK/IDKN 36 Pre-emergence flat spray nozzle PRE 38 Anti-drift flat spray nozzles AD 40 Multirange flat spray nozzles LU 42 Quality flat spray nozzles QS 80 44 Standard flat spray nozzles ST/SC 46 Asymmetrical twin flat spray air-injector nozzles IDTA 48 Symmetrical...

THE RIGHT NOZZLE FOR EVERY APPLICATION Crop production Ground care Container and tank cleaning Product information

Field crops - Plant protection - Liquid fertilizer Wine and orchard - Plant protection Horticulture - Plant protection - Liquid fertilizer - Irrigation Golf courses/ sports grounds - Plant protection - Liquid fertilizer - Irrigation Traffic areas/ airports - De-icing - Dust suppression Riding arena floors - Sprinkling The right nozzle for every application – quick and easy. The optimal accessory for greater efficiency in agriculture.

SPRAY NOZZLE TECHNOLOGY ቢ Identication of Lechler nozzles and lters ቢ Identication of Lechler nozzles and lters ባ Flow rate ቪ Recommendations Correct „ltering“ Avoiding nozzle blockages ቤ Density ብ Conversion factors for different densities ቦ Coverage ቧ Nozzle arrangement in the system Flat-jet nozzles Hollow cone nozzles ቨ Calculation formula for eld spraying Measuring the driving speed Nozzles troubleshooting A sprayer will deliver the desired product quantity per hectare only if it is correctly adjusted ቫ Nozzle wear ቭ Thread table and pipe diameters ቩ Calculation formula for ቮ Quality means...

The theoretical coverage of a nozzle is essentially determined by the spray angle and spray height above the target. Depending on nozzle type and nozzle size, the spray pressure can also influence the spray angle and distribution accuracy. Prerequisites for uniform liquid distribution in the spraying system are in compliance with the recommended spray pressure at the nozzle as well with the minimum spray height for a given nozzle spacing. Effective coverage Spray angle Theoretical coverage B for different spray heights H [cm] 10 * Parentherized data: mayor difference between effective and theoretical...

SPRAY NOZZLE TECHNOLOGY ቧ Nozzle arrangement in the system Flat-jet nozzles Hollow cone nozzles and Lechler assembly clips with TWISTLOC/Multijet bayonet cap. The Lechler nozzle adjusting gauge (Order No. 065.231.02) is available for systems with screw/union nut fastening. In order to avoid mutual spray jet interference, the jet plane of flat spray nozzles is rotated by around 7.5° – 10° with respect to the pipe axis. This takes place automatically with Lechler diaphragm valves Hollow cone nozzles must be arranged so that the jet cones just overlap immediately before the target surface. Arrangement...

Spray nozzle technology ቨ Calculation formula for field spraying Application parameters The table values in the technical part of the catalog apply for field spraying booms with a lateral nozzle spacing of A = 0.5 m. The adjacent formula apply for other lateral nozzle spacings. As a general rule: of the four parameters driving speed (km/h), application rate (l/ha), flow rate (l/min) and nozzle spacing (m), three are normally known. The frequently unknown variables (l/ha; l/min) are also calculated using the adjacent formulae. Liter per hectare rate, M (l/ha) . M = 600 x V A x vF . Flow rate/nozzle...

SPRAY NOZZLE TECHNOLOGY ቪ Recommendations Correct „ltering“ Malfunctions during operation caused by coarse particles can be prevented by use of the correct lter system. In order to protect the nozzle lter, we recommend selecting a mesh lter in the pressure lter which is one category ner. The recommendations for the mesh size (M) of the nozzle lter/cup strainer are provided in the spray tables according to nozzle size. Filling sieve 16 M Optional pressure lter in partial widths 50/80 M Cup strainer 25 – 60 M Tank strainer 16 M (Mesh) Pressure Filter tting 50/80 M Scheme of selecting the mesh size...

Spray nozzle technology A sprayer will deliver the desired product quantity per hectare only if it is correctly adjusted. The easiest method for checking this yourself is measurement of the individual nozzle output. A nozzle is considered to be worn if the individual nozzle output is 10 % above the table value of nozzles of same size. The pressure range and pressure drop must be taken into account. Even with ow-controlled devices, a water capacity test is necessary. Source: Bildungswerkstatt Mold, Pichler Herbert Nozzles become worn even if used properly and thus have a limited service life....

SPRAY NOZZLE TECHNOLOGY ቭ Thread table and pipe diameters Compatibility of pipe threads * Leckage possible! x = compatible - = not compatible Taper thread: R, Rc, NPT Parallel thread: RP, G ቮ Quality means being measured by results Approved Lechler nozzles for field spraying as well as for bush, tree and specialty crop applications always reliably meet the requirements of the Julius Kühn Institute JKI and other international standards. All prerequisites in the sense of the German Plant Protection Act and European legislation as well as ISO 16119 (Environmental requirements for sprayers) and ISO...