Flat fan nozzles
Lechler flat fan nozzles stand for high impact and uniform liquid distribution with spray angles up to 60°. Flat fan nozzles with low flow rates are especially suited for humidifying and spraying in general. The flow geometry of the nozzle allows the production of accurate, compact sprays, available with different distribution patterns.
Nozzle Types
Low-pressure nozzles
Stable spray angles at a wide range of pressures. Uniform parabolic distribution.
High-pressure nozzles
Sharp uniform flat fan nozzle made from hardened stainless steel.
Adjustable nozzle systems
Ball joint, multi-directional swivelling range of 20°. Simple, quick assembly. Easy adjusting and cleaning. Retains orientation upon replacement.
Flat Fan Spray
Flat fan spray atomization with flat fan nozzles
The spray pattern of flat fan nozzles features a sharply delimited line due to internal flow characteristics. The coverage width can be varied 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 spray atomization with tongue-type nozzles
Regarding the flat fan spray atomization, tongue-type nozzles are of a special kind. The flat fan pattern is generated by a solid stream, impinging upon an external deflector plate (“the tongue”). Tongue-type nozzles are particularly clog-proof and produce a sharply delimited flat fan pattern.
Flat Fan Products: Parabolic Spray Arrangement
Spray Arrangement With No Overlap
Overlapping of Spray Pattern 25-35%
Flat Fan Products: Nozzle Geometries
Axial Style
Axial Style geometries generally have a parabolic distribution. Spray is concentrated in the center and tapered at the end.