ST75/ST75V Gas Mass Flow Meters for Line Sizes 1/4 to 2 inch [6 to 51 mm]
The ST75 is an accurate, no moving parts, direct mass flow measurement and monitoring solution for fuel gases, air, compressed air, inert and other gas flows within industrial processes. It is available in nine different sizes for direct, in-line installation in line sizes from 1/4 to 2 inch [ 6 to 51mm]. By combining precision lithography structured platinum RTD sensors embedded in FCI's equal mass thermowells with microprocessor electronics and precise actual gas calibration, the ST75 achieves outstanding flow measurement performance. Using FCI's proven thermal dispersion technology, the ST75's direct mass flow measurement, eliminates the cost and space of additional sensors required by inferred technologies.
With its 100:1 turndown and flow ranges from 0.01 to 559 SCFM [0.01 to 950 NCMH], the ST75 measures over a wide flow range, from low to high flow conditions. The ST75 is available in specific calibrations for most gases including natural gas, methane and other hydrocarbon gases, as well as, nitrogen, CO2, argon and all inert gases, compressed air and more.
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Burner and Boiler Fuel and Air Feed Lines
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Heat Treating Gas Controls Industrial Furnaces, Kilns and Oven Fuel/Air Controls
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Industrial Furnaces, Kilns and Oven Fuel/Air Controls
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Air Compressor System Control and Point-of-Use Monitoring
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Chiller Air Flow Measurements
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Co-Gen and Turbine Generator Fuel Flow Measurements
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Dosing and Gas Injection Rate Controls
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NPT Line Size
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1/4"
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1/2"
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3/4"
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1"
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1 1/2"
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2"
|
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Min. SCFM |
0.04 |
0.13 |
0.22 |
0.35 |
0.85 |
1.40 |
|
Min. [NCMH] |
[0.07] |
[0.22] |
[0.38] |
[0.59] |
[1.44] |
[2.38] |
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Max. SCFM |
17.34 |
50.64 |
88.88 |
139.95 |
339.31 |
559.27 |
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Max. [NCMH] |
[29.47] |
[86.04] |
[151.00] |
[237.78] |
[576.48] |
[950.20] |
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Tubing Line Size
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1/4"
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1/2"
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1"
|
|
Min. SCFM |
0.01 |
0.05 |
0.25 |
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Min. [NCMH] |
[0.01] |
[0.09] |
[0.42] |
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Max. SCFM |
3.02 |
21.15 |
99.08 |
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Max. [NCMH] |
[5.14] |
[35.94] |
[168.33] |
* Actual range subject to gas type and specific conditions.
·Flow: Maximum ± 0.025% of reading/ºF up to 250ºF [±0.05% of reading/ºC up to 121 ºC]
·Standard: 40 to 100° F [4 to 38° C]
·Optional: 0 to 250° F [-18 to 121° C]
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T-fitting [NPT female]: 1/4", 1/2", 3/4", 1", 1 1/2" or 2"
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Tubing: 1/4", 1/2" or 1"
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T-fitting [NPT female]: 240 psig [16.5 bar(g)]
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Tube: 600 psig [ 41 bar(g)]
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(2) 4-20 mA assignable to flow or temperature
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(1) 0-500 Hz pulse proportional to flow for totalizer/counter
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DC: 18 to 36 Vdc
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AC: 85 to 265 Vac (*CE mark approval from 100 to 240 Vac)
