Starting at $137.00
  • Usually ships in 2-3 weeks



  • Flow Rate Settings: 0.15 GPM to 2.00 GPM
  • Setting Type: Fixed
  • Brass or 316 Stainless Steel housing
  • Maximum Operating Pressure: 1500 PSI
  • Operating Temperature: -20 to 275°F
  • Set Point Accuracy: ±20% Maximum
  • Set Point Differential: 20% Maximum
  • Switch: SPST, 20VA, N.O. at no Flow
  • Electrical Termination: 24” polymeric leads (22 AWG)


The Gems FS-380 series are rugged inline flow switches especially well-suited to high pressure applications. Brass or stainless steel body construction and one-piece PPS composite piston makes the FS-380 ideal for high-pressure applications such as industrial cleaning equipment. The FS-380 uses 100 micron filtration and are less susceptible to clogging than other high-pressure inline flow switches.

The FS-380 series is available with 3/8" NPT, 1/2", NPT or 3/8" tube compression fittings and with flow setting from 0.15 to 2.0 gpm. The simple and reliable design is suitable for operating temperatures from -20 to 275°F and line pressures up to 1500 psig.

Applications for the Gems FS-380 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: