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Flow Switches for Threaded Plastic Piping


Item# FSW503

Please contact Technical Sales Team for assistance. Any remaining stock is available for purchase

Only 86 left

Limited Stock
Flow Switches for Threaded Plastic Piping FSW503 FSW503
  • Discontinued, Replaced by FS-100-Series
  • Flow Switch Setpoints: 0.25 GPM to 5.0 GPM
  • 3 /4 " NPT Ports
  • Non-Adjustable Setpoint

FSW503 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Media Type
Max Operating Pressure
Max Process Temperature
Process Connection Type
Process Connection Size
Wetted Materials
Switch Rating and Type
Wire Length

  • Contact Blocks 5 A to 240 Vac resistive 1/3 hp to 120 Vac
  • Maximum Pressure 100 psig @ 21°C (70°F)
  • Set Point Differential ±20% maximum
The FSW500 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 FSW500 is ideal for equipment cooling including welders, lasers, etc. A J-box version with a 5 amp relay is also available.
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