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Flat fan spray atomization with flat fan nozzles The spray pattern of flat fan nozzles feature a sharply delimited line due to internal flow characteristics. You can vary the coverage width by modifying the geometric configuration of the nozzle orifices, where the liquid is shaped into flat, fan-like spray patterns. The flat liquid body takes on a laminar form and disintegrates into droplets as its distance from the nozzle orifice increases. Parabolic, trapezoidal or rectangular impact areas are achieved by adequately determining the functional and geometric dimensions.

Flat Fan Nozzles F GA GD GE GEA GF GMA GX GY HG HT HTQ J low flow J standard flow J large flow K high impact K wide spray angle KS Stäng In a flat jet spray, the liquid droplets are sprayed in the shape of a flat liquid layer, with different thickness according to the principle used to generate the spray. A flat jet spray nozzle serves the purpose of spraying onto a surface or an object moving in a transverse direction concerning one of the jet surfaces, a typical example being the nozzles in a car washing tunnel—most flat spray nozzles used in the industry work according to one of the following principles. Inline flat jet This is the general-purpose flat jet nozzle, where the liquid enters the nozzle in line with the axis length and is fed to a pressure chamber, from where it is ejected through the nozzle orifice. Flow value and spray angle are determined respectively from the orifice cross-section and edge profile. Inline straight jet These nozzles can be considered a special flat jet nozzle with a low-degree spray angle. They are designed to produce a sharp, stable stream with consequential impact on a given point and usually serve to perform cleaning processes or to cut soft materials. Spoon flat jet. In this type of nozzle, the liquid is fed under pressure to a round outlet orifice and then deflected onto a smooth, profiled surface to assume a flat jet shape. This sophisticated design is advantageous since it offers a more substantial jet impact using the same feed pressure. Higher efficiency comes from the very little energy required to change the direction of the liquid flow, this being the only energy required to generate the flat jet.

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