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Last Updates: 15/02/2021

Gems FS-500 Series Flow Switch

From: $120

  • Flow Settings: 0.25 GPM 
  • Body Material: Polypropylene
  • Port Size: 3/4″ NPT Female
  • Switch Type: SPST, N.O. (20VA)
$120
  • Flow Settings: 0.50 GPM 
  • Body Material: Polypropylene
  • Port Size: 3/4″ NPT Female
  • Switch Type: SPST, N.O. (20VA)
$138
  • Flow Settings: 1.00 GPM 
  • Body Material: Polypropylene
  • Port Size: 3/4″ NPT Female
  • Switch Type: SPST, N.O. (20VA)
$120

Lead Time: 4 to 6 weeks

  • Flow Settings: 2.50 GPM 
  • Body Material: Polypropylene
  • Port Size: 3/4″ NPT Female
  • Switch Type: SPST, N.O. (20VA)
$120
  • Flow Settings: 5.00 GPM 
  • Body Material: Polypropylene
  • Port Size: 3/4″ NPT Female
  • Switch Type: SPST, N.O. (20VA)
$120
  • Flow Settings: 2.00 GPM 
  • Body Material: Polypropylene
  • Port Size: 3/4″ NPT Female
  • Switch Type: SPST, N.O. (20VA)
$120
  • Flow Settings: 0.25 GPM 
  • Body Material: Polypropylene
  • Port Size: 3/4″ NPT Female
  • Switch Type: SPDT (5A – 240VAC, 28VDC)
$286
  • Flow Settings: 0.50 GPM 
  • Body Material: Polypropylene
  • Port Size: 3/4″ NPT Female
  • Switch Type: SPDT (5A – 240VAC, 28VDC)
$288

The FS-500 offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. All wetted parts are polypropylene or stainless steel, making this switch ideal for a wide range of chemical and temperature requirements. The materials are also NSF or FDA approved for potable water treatment applications including chlorinators, purifiers and heaters. The FS-500 is ideal for equipment cooling including welders, lasers, etc. A J-box version with a 5 amp relay is also available for direct control of higher electrical loads, such as chlorinator pumps

Applications: 

  • Protect Bearings or Gears: oil separators, fuel systems, pumps, compressors, presses 
  • Electronics or Machinery: heat exchangers, semiconductor manufacturing equipment, induction furnaces, radio transmitters 
  • Process Systems: water filtration and reverse osmosis, chlorinators, de-icers, sterilizers, evaporators
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