Liquid Flow Switches

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  1. McDonnell Miller Electric Relay Model T5R

    McDonnell Miller Electric Relay Model T5R

    SKU: MH1177

    Flow switch 120 volt, 5 second time delay relay. Direct mounting on series FS4-3, AF2 and AF3. Remote mounting on main control panel or conduit box with series FS-1, FS6, FS7-4 and FS-8W. Permits intermittent switching of controlled equipment and eliminates false signals and rapid cycling from turbulence or fluctuations. Solid state with 10" lead wires. Learn More
    $142.59
  2. McDonnell Miller Liquid Flow Switch Model 1" FS4-3T

    McDonnell Miller Liquid Flow Switch Model 1" FS4-3T

    SKU: MH1150A

    Liquid flow switch for universal general purpose applications for starting and stopping electrical operation equipment such as signals, alarms, motors, automatic burners and metering devices. 1" female I.P in-line body and comes with high flow paddle. 120 volt single pole double throw snap switch. Sensitivity adjustment screw for easy flow adjustment. Maximum temperature 300 degrees F, and 150 psi operating pressure. Learn More
    $223.10
  3. McDonnell Miller Liquid Flow Switch Model 1" FS4-3T2

    McDonnell Miller Liquid Flow Switch Model 1" FS4-3T2

    SKU: MH1150C

    Liquid flow switch for universal general purpose applications for starting and stopping electrical operation equipment such as signals, alarms, motors, automatic burners and metering devices. 1" female I.P in-line body and comes with medium flow paddle. 120 volt single pole double throw snap switch. Sensitivity adjustment screw for easy flow adjustment. Maximum temperature 300 degrees F, and 150 psi operating pressure. Learn More
    $223.10
  4. McDonnell Miller Liquid Flow Switch Model 1" FS4-3T3

    McDonnell Miller Liquid Flow Switch Model 1" FS4-3T3

    SKU: MH1150D

    Liquid flow switch for universal general purpose applications for starting and stopping electrical operation equipment such as signals, alarms, motors, automatic burners and metering devices. 1" female I.P in-line body and comes with low flow paddle. 120 volt single pole double throw snap switch. Sensitivity adjustment screw for easy flow adjustment. Maximum temperature 300 degrees F, and 150 psi operating pressure. Learn More
    $223.10
  5. McDonnell Miller Liquid Flow Switch Model 1" FS5

    McDonnell Miller Liquid Flow Switch Model 1" FS5

    SKU: MH1156

    Liquid flow switch for general purpose applications requiring low flow rate sensitivity. 1" female I.P in-line body. 120 volt single pole double throw snap switch. Sensitivity adjustment screw for easy flow adjustment. Maximum temperature 250 degrees F, and 150 psi operating pressure. Learn More
    $237.50
  6. McDonnell Miller Liquid Flow Switch Model 1" FS5-D

    McDonnell Miller Liquid Flow Switch Model 1" FS5-D

    SKU: MH1158

    Liquid flow switch for general purpose applications requiring low flow rate sensitivity. 1" female I.P in-line body. (2) 120 volt single pole double throw snap switch. Sensitivity adjustment screw for easy flow adjustment. Maximum temperature 225 degrees F, and 150 psi operating pressure. Learn More
    $313.50
  7. McDonnell Miller Liquid Flow Switch Model 1" FS5-DS

    McDonnell Miller Liquid Flow Switch Model 1" FS5-DS

    SKU: MH1156A

    Stainless steel liquid flow switch for general purpose applications requiring low flow rate sensitivity. 1" female I.P in-line body. (2) 120 volt single pole double throw snap switch. Sensitivity adjustment screw for easy flow adjustment. Maximum temperature 225 degrees F, and 150 psi operating pressure. Learn More
    $997.50
  8. McDonnell Miller Liquid Flow Switch Model 1" FS5-S

    McDonnell Miller Liquid Flow Switch Model 1" FS5-S

    SKU: MH1156B

    Stainless steel liquid flow switch for general purpose applications requiring low flow rate sensitivity. 1" female I.P in-line body. 120 volt single pole double throw snap switch. Sensitivity adjustment screw for easy flow adjustment. Maximum temperature 225 degrees F, and 150 psi operating pressure. Learn More
    $945.25
  9. McDonnell Miller Liquid Flow Switch Model 1" FS6

    McDonnell Miller Liquid Flow Switch Model 1" FS6

    SKU: MH1160

    Liquid flow switch for heavy duty applications where high sensitivity is required and very high flow rates such as water treatment systems, compressors, booster pumps that require instant switching. 1" F.I.P in-line configuration. 120 volt single pole double throw snap switch. Sensitivity adjustment screw for easy flow adjustment. Maximum temperature 225 degrees F, and 100 psi operating pressure. Learn More
    $356.25
  10. McDonnell Miller Liquid Flow Switch Model 1" FS6-W

    McDonnell Miller Liquid Flow Switch Model 1" FS6-W

    SKU: MH1160B

    Liquid flow switch for heavy duty applications where high sensitivity is required and very high flow rates such as water treatment systems, compressors, booster pumps that require instant switching. 1" F.I.P in-line configuration. 120 volt NEMA 4X switch. Sensitivity adjustment screw for easy flow adjustment. Maximum temperature 225 degrees F, and 100 psi operating pressure. Learn More
    $403.75
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