Gems Sensors & Controls FS-550 Series Flow Switch

Last Updated: 31/05/2020

Gems Sensors & Controls 30640


Usually ships in 4 to 6 weeks

Part Number: 30640 Categories: ,
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  • ModelFS-550
    Primary Material of ConstructionAlloy
    Sensor TypePaddle Type
    Adjustable RangeN/A
    Flow Setting (GPM)5.0 – 29.0
    Body Material316 Stainless Steel
    Port Size1″ NPT Male
    Switch TypeSPDT (20VA)
    Set Point Accuracy±25%
    Maximum Pressure (PSI)Over 500
    Minimum Temperature (°F)-30
    Maximum Temperature300
    Electrical Termination18 AWG, 24″-26″ Polymeric Leads
    Set Point DifferentialN/A
    Wetted Materials316 Stainless Steel, Teflon®, Ceramic
    ApprovalsUL Recognized, CSA, CE, FM
    Recommended FiltrationN/A

    Standard FS-550 switches sense liquid flow in either direction to monitor flow/no-flow conditions. They are supplied in two paddle lengths. The paddle is trimmed during installation to permit switch actuation at the desired flow rate. As flow increases in a pipe, the paddle of the switch pivots to move out of the liquid path, producing less than 3 psig (.21 bar) of pressure drop regardless of pipe size.  

    Using Gems™ Safe-Pak® Relays and Barriers, these switches provide automatic flow / no flow interlock and are intrinsically-safe without explosion-proof housing and piping. 

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    Questions? Call +604-502 1894 Mon-Fri 8:30am to 5:30pm or Email

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