Natural Gas Flow Meters

For natural gas flow measurement and control applications, FCI provides an extensive selection of solutions.  For line sizes as small as 1/4 inch [6 mm] to greater than 60 inches [1524 mm], and any size in-between, there is an FCI thermal mass flow meter or flow switch.  From an economical, compact flow meter with an analog 4-20mA output to an extensively featured, enhanced function flow meter with digital bus communications such as HART, Modbus, Foundation Fieldbus, or PROFIBUS, FCI can match your exact application criteria and specifications. All FCI natural gas flow meters are calibrated using actual gas, at your temperature and pressure conditions, in precision flow stands outfitted with NIST and ISO/IEC 17025 traceable equipment so that you can be confident in their installed performance and quality. 

  • Boiler Inlet Fuel
  • Industrial Furnaces and Ovens
  • Submetering
  • CHP and Co-gen Engine Fuel Line
  • Flare Assist Gas Feed Line
  • Gas Compressor Packing Case Vents
  • Gas-fired Industrial Heaters
  • Well-head Flaring or Gas Recovery Systems
  • Leak Detection
  • Gas Compressor Crankcase Vents
  • Mercaptan/Methanethiol Injection

FCI Flow Meter Solutions

  • FS10i Flow Switch/Monitor

    Small, compact, light-duty, economy  air/gas flow meter. 24Vdc powered. 10 segment LED display.  Wire-up to M12 or cable pigtail.

    Line Size

    In-line: 1" or 2" [25 mm or 51 mm]

    Insertion: >2" through 20" [>51 mm through 510 mm]

    Performance

    Accuracy: 3%
    Range(min): 1.25 SFPS [0, 4 NMPS]
    Range(max): 400 SFPS [122 NMPS]
    Temperature Service (max): to 250°F [to
    121°C]

    Outputs:

    4-20 mA, Relay

    Ratings:

    Div2/Zone2, SIL 2, IP65

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  • ST100A Mass Flow Meters

    Highest accuracy, heavy-duty  air/gas flow meter with superior standard features and functions, and installation choices. DC or AC powered.

    Line Size

    In-line: 1", 1.5", or 2" [25 mm, 38 mm, or 51 mm]

    Insertion: >2" through 99" [>51 mm through 2500 mm]

    Performance

    Accuracy: 1%
    Range(min): 0.25 SFPS [0,07 NMPS]
    Range(max): 1000 SFPS [305 NMPS]
    Temperature Service (max): to 850°F [to
    454°C]
     

    Outputs:

    4-20mA, Pulse/Freq, HART, Modbus, Foundation Fieldbus, Profibus

    Ratings:

    Div1/Zone1, SIL 1, IP67

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  • ST51/ST51A Mass Flow Meters

    Small, compact, medium-duty,  air/gas flow meter. DC or AC powered. NPT compression fitting mounted. Optional 2-line LCD readout.

    Line Size

    Insertion: >2" through 20" [>51 mm through 510 mm]

    Performance

    Accuracy: 2% tp 1%
    Range(min): 0.3 SFPS [0,08 NMPS]
    Range(max): 400 SFPS [122 NMPS]
    Temperature Service (max): to 350°F [to
    177°C]

    Outputs:

    4-20 mA, Pulse/Freq, HART, Modbus

    Ratings:

    Div1/Zone1, SIL 1, IP67

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  • ST75 Series Mass Flow Meters

    Small, compact, medium-duty,  air/gas flow meter. DC or AC powered. NPT or flange mounting. Optional 2-line LCD readout.

    Line Size

    In-line: 1/4" through 2" [6 mm through 51 mm]

    Performance

    Accuracy: 2% or 1%
    Range(min): 0.01 SCFM [0,01 NCMH]
    Range(max): 560 SCFM [950 NCMH]
    Temperature Service (max): to 250°F [to
    121°C]

    Outputs:

    4-20 mA, Pulse/Freq, HART, Modbus

    Ratings:

    Div1/Zone1, SIL 1, IP67

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  • ST80/ST80L Mass Flow Meters

    Industrial plant rugged, heavy-duty  air/gas flow meter with broad range of features, functions, and mounting options. DC or AC powered.

    Line Size

    In-line: 1", 1.5", or 2" [25 mm, 38 mm, or 51 mm]

    Insertion: >2" through 99" [>51 mm through 2500 mm]

    Performance

    Accuracy: 1%
    Range(min): 0.25 SFPS [0,07 NMPS]
    Range(max): 1000 SFPS [305 NMPS]
    Temperature Service (max): to 850°F [to
    454°C]

    Outputs:

    4-20mA, Pulse/Freq, HART, Modbus, Foundation Fieldbus, Profibus

    Ratings:

    Div1/Zone1, SIL 1, IP67

    LEARN MORE