Nozzles – one of the most important parts of a sprayer. To make a right choice it is necessary to know their main differences: a used material (plastic, ceramics, steel); range of pressure and dispersion corners. In more detail about it it is described in this publication.
UDC 631
Nozzles – one of the most important parts of a sprayer. With increase in the range to choose that is necessary, it is very hard. To make a right choice it is necessary to know their main differences: a used material (plastic, ceramics, steel); range of pressure and dispersion corners.
Versions.
Traditional flat fan bunch: very small dispersion, tendency to demolition, pressure 20-60 rsi.
Nozzles with the limiter on an exit: demolition reduction for 50-70 %, reliable functioning at low volumes.
Nozzles of low pressure with the podduvy: reduction of demolition by 50-70 %. Use at pressure of 30-60 psi.
Nozzles of a high pressure with the podduvy: reduction of demolition by 50-90 %. Use at pressure of 60-80 psi or above,> 66 l/hectares.
Carrier volume.
At 73-94 l/hectares it is possible to use any nozzle under condition of correctly chosen pressure.
At 37 and less than a l/hectare it is necessary to be limited to nozzles of large and slightly smaller dispersion: type of nozzles 1-3.
Orientation of nozzles.
At low speed of movement direct them forward. Use of double nozzles (one is directed forward, and another back) – an excellent method for improvement of processing of vertical surfaces.
Speed of movement of the unit.
High speed of movement has both advantages, and shortcomings, but it is most important – intensity of processing. As a whole, to carry out processing on low speed it is better.
Bar height.
The minimum height practically is always more preferable, because it reduces demolition. For usual nozzles with a corner of a torch of dispersion of 80 degrees the height of a bar can make 45 cm over a processed surface. If a corner of 110 degrees – that 35 see.
Penetration into a vegetative cover.
When using any nozzle penetration improves with decrease in speed of movement and increase in volume of the carrier. Air use – one of the best ways to raise penetration.
Some aspects of application of the nozzles, the most interesting consumers.
Use average pressure from a recommended range for your nozzle. If a pressure range from 30 to 60 psi, be guided on 45psi. Such approach will give opportunity to vary speed of movement when using a regulator of norm of introduction.
Plastic nozzles wear out not earlier than the steel. However their cleaning should be carried out carefully: there can be an irreversible deformation. Ceramics – the steadiest material.
Having blown minimizes demolition in comparison with any other comparable technology, even at a high pressure.
Having blown very well promotes increase of penetration into a dense vegetative cover. It is useful when processing fungicidami and insecticides, but not always acquits itself at introduction of herbicides.
At krupnokapelny dispersion there can be a reduction of a processed surface. But it isn’t of great importance at moderate volume of water. For determination of efficiency the great value has quantity of drops on 1 cm2, instead of the size of drops. Pressure and volume should be modified so that at least 47-77 drops were the share of 1 cm2, i.e. processing of 10-15 % of a surface.
Use of small volume means that less water is the share of each 1 cm2. It is compensated by its drawing by the smallest drops. Such option is acceptable, if it is possible to supervise demolition. Use of low volumes, as a rule, reduces influence of hard water.
Penetration into a vegetative cover and the general uniformity of processing are reduced at decrease in volumes of water to very low level. It is not recommended to use less than 47 l/hectares for any preparations, behind an exception glifosata.
The nozzles providing insignificant demolition, it is possible to use for all preparations if to follow all other recommendations (the corresponding volume of water and pressure of a sprayer).
On materials To Fermerska hospodariate.