Starting at $373.00
  • Usually ships in 2-3 weeks



  • Flow Rate Settings: 0.50 GPM to 3.00 GPM
  • Port Size: 1/2" NPT, 3/4" NPT, 1/2" Tube Compression Fitting
  • Primary Construction Material: 316 Stainless Steel
  • Maximum Operating Pressure: 1000 PSI
  • Operating Temperature: -20 to 250°F
  • Set Point Accuracy: ±20% Maximum
  • Set Point Differential: 20% Maximum
  • Recommended Filtration: 100 Micron or better
  • Switch: SPST, 20VA, 120/240 VAC, N.O. at no Flow


The Gems FS-480 series large-body inline flow switch delivers ample flow rates with minimal pressure drop. 25% larger than its FS-380 sibling, the FS-480 is ideal for processes that push more fluid through their systems and demand low pressure drops. Designed to accommodate the Semiconductor Industry's move to larger 300 mm wafer and cross-over equipment, this switch is also perfect for critical medical equipment applications. A glass-reinforced PPS piston and forged 316 stainless steel body make this sensor rugged enough for high pressure lubrication and cooling systems as well.

The FS-480 series is available with 1/2" NPT, 3/4" NPT or 1/2" tube compression fittings with flow settings ranging from 0.5 to 3.0 gpm. The simple and reliable design is suitable for operating temperatures from -20 to 250°F and line pressures up to 1000 psig. The FS-480 series utilizes a SPST switch.

Applications for the Gems FS-480 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: