Starting at $242.00
  • Usually ships in 2-3 weeks



  • Flow Rate Settings
    • Liquids: 0.1 to 1.5 GPM
    • Air/Gases: 0.5 to 25 SCFM
  • Port Size: 1/4" NPT
  • Primary Construction Material: Brass or Stainless Steel
  • Maximum Pressure Rating: 1000 PSIG (operating); 2500 PSIG (Proof); 5000 PSIG (Burst)
  • Operating Temperature: -20 to 300°F
  • Repeatability: 1% Maximum Deviation
  • Set Point Accuracy: ±10%
  • Set Point Differential: 15% Maximum
  • Switch: SPDT, 20 VA


The Gems FS-925 series flow switches are precision-calibrated to provide reliable and consistent performance. Boasting a repeatability within 1%, the FS-925 is factory preset for actuation at specified flow rates. These switches provide accurate detection of excessive or insufficient flow rates in such applications as: protecting against loss of fluid flow in hydraulic systems, assuring proper coolant flow in semiconductor processing equipment, monitoring high pressure lubrication systems, and ensuring proper air flow in water/waste systems.

The FS-925 series has a 1/4" NPT port for liquid flow settings from 0.01 to 1.50 gpm or air/gas flow rates from 0.5 to 25 scfm. Featuring rugged brass or stainless steel bodies, the FS-925 utilizes a simple and reliable design suitable for operating temperatures from -20 to 300°F and line pressures up to 1000 psig.

Applications for the Gems FS-925 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: