Starting at $115.00
Minimum Order Quantity of 5 Items.



  • Flow Rate Settings: 0.5 to 5 GPM
  • Setting Type: Fixed
  • Polypropylene Housing, Hydrolytically Stable, Glass Reinforced
  • Maximum Operating Pressure: 200 PSIG @ 70°F
  • Operating Temperature: 0 to 212°F
  • Set Point Accuracy: ±15%
  • Set Point Differential: 20% Maximum
  • Switch: SPST, 20 VA
  • Inlet/Outlet Ports: 1/2˝ NPT Male
  • Electrical Termination: 1/4˝ Male Quick Connect Terminals (2)


The Gems FS-150 series flow switches incorporate a unique, dual-diameter, internal bore and piston configuration to minimize flow constriction. Liquids are able to smoothly pass around the piston and flow through the switch with little pressure loss to the downstream line.

These slim, inline switches have a fixed flow setting from 0.5 to 5.0 gpm. The polypropylene body is glass reinforced and hydrolytically stable allowing for temperatures from 0 to 212°F and line pressures up to 200 psig at 70°F. The FS-150 series includes 1/2" NPT ports and two 1/4˝ male quick connect electrical terminals.

Applications for the Gems FS-150 Series flow switch:

  • Electronic Equipment: Laser Heads, Welders, Power Supplies, High Speed Spindles, X-Ray Tubes, Semiconductor Equipment
  • Bearings or Gears: Presses, Rotating Equipment, Conveyors, Machine Tools, Robotics
  • Processing & Dispensing Equipment: Water Purifications and Filtering, X-Ray Film Processing, Beverage Dispensing, Chemical Additives, Gas Sampling, Distilling


This product can be used in the following applications:

In Stock

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