|
Nozzle Selection
For the applied plant protectant to achieve a high level
of biological efficiency, it has to cover the targets well.
The use of Lechler high precision nozzles characterized by
exact dosing and uniform distribution achieves that goal.
Nozzles of a particular type and size can be selected for
characteristic curves with allowance for the desired forward
speed according to the following criteria:
- Application rate (l/ha)
- Desired atomization characteristic for the product employed
and crop concerned.
The atomizing characteristics of Lechler nozzles build on
their droplet size data and their classification according
to categories defined by BCPC (British Corp Protection Council).
Lechler's droplet-size analyses are conducted according to
internationally standardized methods using modern phase doppler
particle analyzers. This approach yields a complete, type-specific
description of each nozzle's pressure-dependent atomization
characteristic in terms of droplet size and droplet velocity.
The nozzles are assigned to different droplets-size categories.
ASAE S-572 droplet size classification
| |
Droplet
Size |
Typical
Users |
Lechler
Tips |
| |
Extremely
Coarse |
Liquid
fertilizer and chemical applications for drift and loss
reduction. |
ID, FL |
| |
Very
Coarse |
Liquid fertilizer and
chemical applications for drift and loss reduction. |
ID, IDK |
| |
Coarse |
Liquid
fertilizer and low drift application of chemicals.
|
ID, IDK |
| |
Medium |
Reduced drift applications;
widely used as a standard droplet size. |
LU |
| |
Fine |
Chemicals with only
less stringent criteria for coverage than very fine. |
LU |
| |
Very
Fine |
Chemicals with extremely
strict criteria of coverage and penetration |
TR, DF |
Droplet-size data sheets for Lechler are
available on request.
|
