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Series 4000 Flow Sensor

The 4000 series flow sensor is an in-line, flow-through design using a tangential six bladed impeller. Its compact molded design allows the 4000 series to replace old style magnetic sensors with little or no piping changes.

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  • Size Range
    20...32 mm
    1/2...1 in.
  • Temperature Range
    Up to 104 °C
    Up to 220 °F
  • Flow Range
    0.8…6.1 m/sec
    0.25…20 ft/sec
  • Pressure Range
    Up to 24 bar
    Up to 350 PSI
  • Accuracy
    ±0.5 %
    ±0.5 %
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In-line, flow-through design using a tangential six bladed impeller.

The proprietary non-magnetic detection circuit is available with two outputs, compatible with most data acquisition or PLC equipment.

  • 4-20 mA Analog output programmable in field
  • Flow detection electronics can be serviced or replaced without opening the pipe. No exposure to wetted parts
  • Impeller bearings and shaft can be easily replaced without removing the sensor from the pipe
  • Documented operating service life in high temperature ultrapure water. Over 40 months of continuous 24 hr/day operation
  • Superior particle-shedding performance verified by independent laboratory testing
  • Low flow capabilities


Product Specifications

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  • Normal Pipe Size
    1/2 in. (20 mm), 3/4 in. (25 mm), 1 in. (32 mm)
    1/2 in. (20 mm), 3/4 in. (25 mm), 1 in. (32 mm)
  • End Connections
    PVC: Plain end pipe
    PVDF: Socket weld/union
    PVC: Plain end pipe
    PVDF: Socket weld/union
  • Standard Flow Range
    1…20 fps
    1…20 fps
  • Low Flow Range
    0.25…8 fps
    0.25…8 fps
  • Accuracy
    Better than 1%
    Better than 1%
  • Repeatability
    ± 0.5%
    ± 0.5%
  • Max. Temperature Rating
    PVC: 60 °C
    PVDF: 104 °C
    PVC: 140 °F 
    PVDF: 220 °F  
  • Max. Pressure Rating
    PVC: 350 psi @ 23 °C
    PVDF: 275 psi @ 18 °C
    PVC: 350 psi @ 73 °F 
    PVDF: 275 psi @ 65 °F 
View all specifications

Market Applications

  • Process & General Industry

    To succeed in a competitive marketplace, manufacturers must deliver the right product on time, every time, as well as capitalize on opportunities for new products, while maximizing uptime and reducing production costs. These manufacturing and processing industries worldwide depend on precise measurement and control technology flow meters. Badger Meter flow meters produce consistently reliable performance to ensure proper blending, custody transfer and signal transmission as well as compliance with international industry standard requirements. Exceptionally durable flow meters and control products help keep production up and running.

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  • Refining, Chemical & Petrochemical

    As a worldwide leader in flow metering technologies for over 110 years, Badger Meter offers one of the broadest product portfolios for the chemical and petrochemical processing industry. From differential pressure and Coriolis flow meters to advanced control valves, our solutions help you measure what matters and improve the efficiency and reliability of your operations. Badger Meter has the proven tools and expertise to help you manage your critical resources.

    View Solutions

Product Documentation

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Product Data Sheets Impeller Series 4000 Flow Sensor Impeller/Data Industrial {{moreContent}} {{seeAllLabel}} | English
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Our extensive global network of distributors is ready to serve you in your local language at your time zone.

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