Gems Sensor & Control FS-150 Series Flow Switch

Last Updated: 25/02/2019

Gems Sensor & Control 129667

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Part Number: 12967 Categories: ,

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Model FS-150
Primary Material of Construction Plastic
Sensor Type Piston Type
Adjustable Range N/A
Flow Setting (GPM) 1.00
Body Material Polypropylene
Port Size 1/2″ NPT Male
Switch Type SPST, N.C. (20VA)
Set Point Accuracy ±15%
Maximum Pressure (PSI) 150 – 300
Maximum Temperature 212
Electrical Termination 1/4″ Male Quick Connect Terminals (2)
Set Point Differential 20%
Wetted Materials Polypropylene, 316 Stainless Steel, Viton, Ryton
Approvals UL Recognized, CSA Listed, CE
Recommended Filtration 150 micron


These slim, inline switches reduce pressure drop to a minimum. They 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 down stream line.