Cookie Disclosure
This website uses cookies. By continuing to use the website, you consent to the use of cookies.
Please click here for more information.
Lechler Ltd
1 Fell Street, Newhall
Sheffield, S9 2TP, England
Tel: +44(0)114 249 2020
info@lechler.com
You are here:  |   |  Flat fan nozzles

Flat fan nozzles

LechlerUK-Shop:/images/02_produkte/industrie/content/flachstrahlduesen_uebersicht.jpg

Flat fan nozzles create a sharply defined fan spray for concentrated impact and cleaning power.  They are the most commonly used family of spray nozzles.  Within this group, there are a wide variety of styles, capacities, spray angles, and distributions to precisely create the desired effect.  General applications include parts cleaning, product cooling, conveyor lubricating, item coating, and surface treatment.


There are two basic types of flat fan nozzles:

Axial flow: This means that the fluid enters and exits the nozzle on the same axis.  This nozzle design uses an elliptical orifice to create controlled turbulence which breaks apart the liquid.  Spray angles vary from 15° to 110° and are quite consistent through a wide range of inlet pressures.  Their parabolic liquid distributions make them ideal for use on a spray header where the sprays are offset and overlapped to create an overall even distribution of fluid.

Deflector flow: These designs have a solid stream orifice that sprays against a deflecting surface, sometimes referred to as a “tongue.”  This type of orifice minimizes clog potential.  While one style channels the fluid into a high impact, narrow angle spray, another style produces an exceptionally wide spray angle up to 140º for greater coverage.

Flat fans can also be separated based upon their type of liquid distribution:

Parabolic distribution:  A flat fan creating a parabolic distribution of spray means that there is a larger distribution of droplets in the middle of the spray than on either edge.  This is due to the fact that the orifice is elliptical in shape to help create the fan pattern.  That makes these types of nozzles most appropriate for installation on headers where they can be overlapped with similar flat fans to create an overall even distribution of spray.

Even distribution:  Certain flat fan nozzles, mainly deflector types, create an even distribution of spray across the coverage area, especially appropriate when only one nozzle is needed for the application.

Optional flat fan varieties such as nozzles with dovetail guides or pipe clamps considerably facilitate assembling and aligning of the nozzles.

 

LechlerUK-Shop:/images/02_produkte/industrie/content/flachstrahlduesen_anordnungsbeispiele.jpg LechlerUK-Shop:/images/02_produkte/industrie/content/flachstrahlduesen_gesamtfluessigkeitsverteilung.jpg
Arrangement of nozzles Example of a total liquid distribution

 

LechlerUK-Shop:/PDF/lg.gif Product overview / technical data: Flat fan nozzles [PDF]

The Lechler family of flat fan nozzles: 

Series 632/633 Precision Spray Nozzle

Series 632/633 Precision Spray Nozzle

Description

  • Wide variety of spray angles & flow rates
  • Parabolic distribution

Standard Materials

  • 303SS, 316SS, Brass, PVDF

Applications

  • Parts washing
  • Product coating

 

LechlerUS-Shop:/PDF/lg.gif  Product Overview / Technical Data:  Series 632/633 Precision Flat Fan Nozzles (PDF)

Series 652 Precision Spray Tip

Series 652 Precision Spray Tip

Description

  • Tip version of Series 632 flat fan
  • Easily replaceable tip

Standard Materials

  • 303SS, 316SS, Brass, PVDF, POM

Applications

  • Parts washing
  • Product coating

 

LechlerUS-Shop:/PDF/lg.gif  Product Overview / Technical Data:  Series 652 Precision Spray Tip (PDF)

Series 656/657 Roto Fan Tip

Series 656/657 Roto Fan Tip

Description

  • Increased non-clogging features
  • More jet power

Standard Materials

  • 303SS, 316SS, Brass

Applications

  • Gravel washing
  • Roll cooling

 

LechlerUS-Shop:/PDF/lg.gif  Product Overview / Technical Data:  Series 656/657 Roto Fan Tip (PDF)

Series 660 Flat Fan Tip with Dovetail Guide

Series 660 Flat Fan Tip with Dovetail Guide

Description

  • Automatic alignment with dovetail guide
  • Uses standard 3/8" cap

Standard Materials

  • 303SS, 316SS, Brass

Applications

  • Cooling headers
  • Spray pipes

 

LechlerUS-Shop:/PDF/lg.gif  Product Overview / Technical Data:  Series 660 Flat Fan Tip with Dovetail Guide (PDF)

Series 664/665 Flat Fan Tip with Dovetail Guide

Series 664/665 Flat Fan Tip with Dovetail Guide

Description

  • Automatic alignment with dovetail guide
  • Uses standard 3/4” cap

Standard Materials

  • 303SS, 316SS, Brass

Applications

  • Cooling headers
  • Spray pipes

 

LechlerUS-Shop:/PDF/lg.gif  Product Overview / Technical Data:  Series 664 / 665 Flat Fan Tip with Dovetail Guide (PDF)

Series 688/689 impactor Deflector Flat Fan

Series 688/689 impactor Deflector Flat Fan

Description

  • Tongue portion channels fluid into narrow angle
  • High impact at low pressures

Standard Materials

  • 316SS, PVDF

Applications

  • Heavy impact washing
  • Knock-off showers

 

LechlerUS-Shop:/PDF/lg.gif  Product Overview / Technical Data:  Series 688/689 impactor Deflector Flat Fan (PDF)

Series 686 Deflector Wide Angle Flat Fan

Series 686 Deflector Wide Angle Flat Fan

Description

  • Deflector plate disperses fluid into wide angle
  • Creates our widest flat fan spray angle – 140º

Standard Materials

  • 316SS, Brass, PVDF

Applications

  • Foam control
  • Dust suppression

 

LechlerUS-Shop:/PDF/lg.gif  Product Overview / Technical Data:  Series 686 Flat Fan Nozzles (PDF)

Series 684 Deflector Wide Angle Flat Fan Tip

Series 684 Deflector Wide Angle Flat Fan Tip

Description

  • Deflector plate disperses fluid into wide angle
  • Creates our widest flat fan spray angle – 140º

Standard Materials

  • POM, PVDF

Applications

  • Foam control
  • Dust suppression

 

LechlerUS-Shop:/PDF/lg.gif  Product Overview / Technical Data:  Series 684 Flat Fan nozzles (PDF)

Series 602/608/652 High Pressure Flat Fan

Series 602/608/652 High Pressure Flat Fan

Description

  • Sharp uniform flat fan for high pressure usage
  • Hardened stainless steel insert for prolonged service life

Standard Materials

  • 303SS base with hardened stainless steel insert

Applications

  • High pressure cleaners
  • Steam jet cleaners

 

LechlerUS-Shop:/PDF/lg.gif  Product overview / technical data: Series 602/608/652 Flat fan nozzles (PDF)

Series 676 - Memospray®Easy Clip Nozzle System

Series 676 Easy Clip Nozzle Assembly

Description

  • Flat fan assembly which clamps onto header pipe
  • Includes base and clamp, adjustable nozzle ball tip, lock nut

Standard Materials

  • Polypro components with stainless steel clip

Applications

  • Parts washing and degreasing
  • Surface finishing

LechlerUS-Shop:/PDF/lg.gif  Product Overview / Technical Data:  Series 676 Memospray / Easy Clip Nozzle System (PDF)