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Float Switch - FLS

Brand: WIKA Alexander Wiegand SE & Co. KG
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A float with a permanent magnet moves reliably along with the liquid level on a guide tube. 

Within the guide tube is fitted a reed contact (inert gas contact), which is energised, through the non-magnetic walls of the float and guide tube, by the approach of the float magnet. By using a magnet and reed contact the switching operation is non-contact, free from wear and needs no power supply.

The contacts are potentialfree. Float switches are also available with multiple switch points.
Features
  • Large range of application due to the simple, proven functional principle
  • For harsh operating conditions, long service life
  • Operating limits:
    • Operating temperature: T = -196 to 350 °C
    • Operating pressure: P = Vacuum up to 40 bar
    • Limit density: ρ ≥300 kg/m3
  • Wide variety of different electrical connections, process connections and materials
  • Explosion-protected versions
A float with a permanent magnet moves reliably along with the liquid level on a guide tube. 

Within the guide tube is fitted a reed contact (inert gas contact), which is energised, through the non-magnetic walls of the float and guide tube, by the approach of the float magnet. By using a magnet and reed contact the switching operation is non-contact, free from wear and needs no power supply.

The contacts are potentialfree. Float switches are also available with multiple switch points.
Features
  • Large range of application due to the simple, proven functional principle
  • For harsh operating conditions, long service life
  • Operating limits:
    • Operating temperature: T = -196 to 350 °C
    • Operating pressure: P = Vacuum up to 40 bar
    • Limit density: ρ ≥300 kg/m3
  • Wide variety of different electrical connections, process connections and materials
  • Explosion-protected versions
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Specifications

Brand

Certifications & Approvals

  • CE
  • DIBt
  • Bureau Veritas
  • ABS
  • DNV GL
  • PESO
  • 3-A
  • EAC
  • IECEx
  • Lloyd’s Register

Environmental Protection

  • IP66
  • IP68

Float Material

  • Titanium
  • Buna (NBR)
  • Stainless Steel 1.4571

Process Connection

  • G 2”
  • G 1-1/2”
  • DN 50 to DN 200, PN 6 to PN 100 Flange
  • ANSI 2” to 8”, Class 150 to 600
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Applications

  • Level measurement for almost all liquid media
  • Pump and level control and monitoring for distinct filling levels
  • Chemical, petrochemical, natural gas, offshore, shipbuilding, machine building, power generating equipment, power plants
  • Process water and drinking water treatment, food and beverage industry
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