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Home  >  Thermal Mass Air/Gas Flow Meters

Thermal Mass Air/Gas Flow Meters

Available from the FCI online store are several product solutions for flow measurement of air, compressed air, natural gas, and biogas. From economical, compact models ST50, ST51 or ST75 to premium featured model ST80 there are solutions for line sizes from 1 inch to 10 inches. All the models available here include the digital display/readout option and all carry FM/FMc agency approval. For more detail specifications on any of these models, please refer back to FCI main website. If your application and installation require a different model than shown here in the online store, please contact FCI or your local sales representative’s office, today.

For Air

FCI ST50 flow meter with signature yellow enclosure; stainless steel probe

ST50

• Small, compact
• Economical, insertion-style
• Dual 4-20 mA outputs, LCD readout of flow rate
• Line Sizes: 4", 6", or 8"; Sch 40 Pipe
• Pressure Calibration: 5 to 40 psig

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Now
FCI's Model ST80 insertion flow meter with signature yellow FCI enclosure and laser-etch marked probe

ST80
• Premium features, functions, heavy-duty
• Flow rate, totalized flow, and temperature
• Dual 4-20mA outputs, HART, and Modbus
• Premium graphical LCD readout with 4 set-up keys
• User configurable for line sizes 2.5" to 10"
• Rotatable enclosure (360°) and LCD display (90° increments)
• Pressure Calibration: 5 to 40 psig
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Now

For Compressed Air

FCI ST75 flow meter with signature yellow enclosure; stainless steel in-line (spool-piece)

ST75
• Small, compact
• Inline-style for Sch.40 pipe sizes 1" or 2", NPT(F) connections
• Dual 4-20mA outputs, plus freq/pulse
• Two line LCD readout of flow rate and totalized flow
• Pressure Calibration: 50 to 150 psig
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Now
FCI ST50 flow meter with signature yellow enclosure; stainless steel probe

ST50

• Small, compact
• Economical, insertion-style
• Dual 4-20mA outputs, LCD readout of flow rate
• Line Sizes: 3" or 4"; Sch 40 Pipe
• Pressure Calibration: 50 to 150 psig

Buy
Now

For Natural Gas

FCI ST75 flow meter with signature yellow enclosure; stainless steel in-line (spool-piece)

ST75
• Small, compact 
• Inline-style for Sch. 40 pipe sizes 1", 1.5" or 2", NPT(F) connections
• Dual 4-20mA outputs, plus freq/pulse
• Two line LCD readout of flow rate and totalized flow
• Gas Calibration: 90% Methane/10% Ethane
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Now
ST51 series flow meters are an accurate, easy to install, no moving parts mass flow meter solution; ST51 is used for measuring biogas, digester gas, methane and natural gas

ST51
• Small, compact
• Economical, insertion-style for 3" or 4" line sizes; Sch 40 Pipe
• Dual 4-20mA outputs, plus freq/pulse
• Two line LCD readout of flow rate and totalized flow
• Gas Calibration: 90% Methane/10% Ethane
Buy
Now
FCI's Model ST80 insertion flow meter with signature yellow FCI enclosure and laser-etch marked probe

ST80
• Premium features, functions, heavy-duty
• Flow rate, totalized flow, temperature
• Dual 4-20mA outputs, HART, and Modbus
• Premium graphical LCD readout with 4 set-up keys
• User configurable for line sizes 2.5" to 10"
• Rotatable enclosure (360°) and LCD display (90° increments)
• Gas Calibration: 90% Methane/10% Ethane
Buy
Now

For Biogas/Digester Gas

ST51 series flow meters are an accurate, easy to install, no moving parts mass flow meter solution; ST51 is used for measuring biogas, digester gas, methane and natural gas

ST51
• Small, compact
• Economical, insertion-style for 4" or 6" line sizes; Sch 40 Pipe
• Dual 4-20mA outputs and freq/pulse
• Two-line LCD readout of flow rate and totalized flow or temperature
• Gas Calibration: 65% Methane/35% Carbon Dioxide
Buy
Now