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    22 Products

    Variable-Pressure Flow Switches

    Image of Product. Front orientation. Flow Switches. Variable-Pressure Flow Switches.
    Accurate even in applications where pressure fluctuates regularly, these flow switches split flow into two paths and measure their difference in pressure drop to calculate the flow rate of liquid. They activate or deactivate equipment when the flow rate reaches your set point. Tighten or loosen the adjustment screw to choose your set point anywhere within the range. They measure accurately no matter their mounting position. All are single pole, double throw (SPDT) and can either turn one device from off to on (normally open) or on to off (normally closed). Rated NEMA 4X and IP66, they seal out dust and protect against washdowns and corrosion.
    These switches are calibrated with water. They can also be used with other liquids but may not measure accurately if their viscosity is significantly different.
    Flow Set Point,
    gpm
    Max. Pressure
    @ Temp.
    Temp. Range,
    ° F
    Voltage
    Max. Switching Current @ Voltage
    Conduit
    Trade Size
    End-to-End
    Lg.
    Each
    Bronze Body
     
    1/4 NPT Female
    0.3 to 2400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T2110000000
    0.4 to 3400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T212000000
    0.5 to 4400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T213000000
     
    1/2 NPT Female
    0.3 to 2400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T221000000
    0.4 to 3400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T222000000
    0.5 to 4400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T223000000
    0.5 to 6400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T224000000
    1.5 to 10400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T225000000
     
    3/4 NPT Female
    0.5 to 6400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T231000000
    1.5 to 10400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T232000000
    2 to 15400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T233000000
    3 to 20400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T234000000
     
    1 NPT Female
    2 to 15400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T241000000
    3 to 20400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T242000000
    4 to 30400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T243000000
    5 to 40400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T244000000
     
    1 1/2 NPT Female
    4 to 30400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T251000000
    5 to 60400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T253000000
    15 to 100400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 1/16"2913T254000000
     
    2 NPT Female
    5 to 40400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 3/16"2913T261000000
    15 to 100400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 3/16"2913T263000000
    30 to 200400 psi @ 70° F-30 to 212120V AC/175V DC180 mA @ 120V AC
    250 mA @ 175V DC    		1/2
    		3 3/16"2913T265000000
     
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