Gems Sensor & Control FS-400 Series Flow Switch

Last Updated: 22/02/2019

Gems Sensor & Control 26441

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Part Number: 26441 Categories: ,

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Model FS-400
Primary Material of Construction Alloy
Sensor Type Shuttle Type
Adjustable Range N/A
Flow Setting (GPM) 1.50
Body Material Bronze
Port Size 3/4″ NPT Female
Switch Type SPDT (20VA)
Set Point Accuracy ±10%
Maximum Pressure (PSI) 300 – 500
Minimum Temperature (°F) -20
Maximum Temperature 180
Electrical Termination 18 AWG, 24″-26″ long Polymeric Leads
Set Point Differential 15%
Wetted Materials Bronze, Delrin, 316 Stainless Steel, Viton, Ceramic
Approvals UL Recognized, UL Explosion Proof, CE, CSA, FM
Recommended Filtration 150 micron



Provides accurate flow detection in water and oil with 1% repeatability. Flow settings on the adjustable version can be easily changed without disassembly. A shuttle by-pass vane inside the housing is controlled externally using an ordinary flat-blade screwdriver. These switches are ruggedly constructed of non-corrosive materials and resist shock and vibration. Suitable for triggering alarms on interlocking shutdown circuitry when flow rate is improper to protect bearings, gears and cooling systems.