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Gas specifications

FlowSeg Gas (FSG) device controls the flow of gases.

The FSG is by default made with two gas lines (designated A and B), with individual inputs and outputs. Each line can separately control a flow of a desired gas, and the outputs can be joined together to form a mixture. The device can therefore act just as easy and convenient way to control large number of individual gas and fluid lines separately or use them to form gas mixtures of selected inputs.

The flow range of each gas line is freely selectable so that the minimum flow is 1/10 000 of the maximum flow, where the boudaries are 0.000 05 ml/min to 10000 liters/min. The selected range affects the device size, weight, and and price, where these go up steeply for devices with flows larger than 10 liters per minute.

The default device is suitable for any non-corrosive gas or gas mixture, with an option for corrosive gases and gas mixtures.

Number of gas channels Any, 2 by default  
Turndown ratio per channel 1:10 000  
Input pressure Up to 11 bar(a), 160 psi(a) Options for 22 bar(a) and 275 bar(a)
Output pressure Any below input pressure  
Flow unit g/min, or any volumetric unit mln/min, sccm STP, NTP or any freely selectable reference condition for volumetric flow unit.
Connections 1/8" Swagelok by default, larger on devices with >1 slpm flow Other connections or adapters on reques
Gas compatibility Pure gases, gas mixtures, option for aggressive gases  
Mixing Any number of channels, evaporation of added fluids with FSF device  
Mixing range Any from pure to parts per billion  
Accuracy 0.5% of measured value, per channel  
Repeatability 0.02% of full scale, per channel  
Options ASME BPE compliant
Low pressure drop
 

Suitable gas examples, but not limited to:

 Air
 Air (Clean Dry)
 Ar - Argon
 CH4 - Methane
 CO - Carbon Monoxide
 CO2 - Carbon Dioxide
 C2H6 - Ethane
 H2 - Hydrogen
 He - Helium
 N2 - Nitrogen
 N2O - Nitrous Oxide
 Ne - Neon
 O2 - Oxygen
 C3H8 - Propane
 nC4H10 - Normal Butane
 C2H2 - Acetylene
 C2H4 - Ethylene (Ethene)
 iC4H10 - Isobutane
 Kr - Krypton
 Xe - Xenon
 SF6 - Sulfur Hexafluoride
 C-25 - 25% CO2, 75% A
 C-10 - 10% CO2, 90% Ar
 C-8 - 8% CO2, 92% Ar
 C-2 - 2% CO2, 98% Ar
 C-75 - 75% CO2, 25% Ar
 He-25 - 25% He, 75% Ar
 He-75 - 75% He, 25% Ar
 A1025 - 90% He, 7.5% Ar, 2.5% CO2
 Star29 - Stargon CS (90% Ar, 8% CO2, 2% O2)
 P-5 - 5% CH4, 95% Ar
 NO - Nitric Oxide
 NF3 - Nitrogen Trifluoride
 NH3 - Ammonia
 Cl2 - Chlorine
 H2S - Hydrogen Sulfide
 SO2 - Sulfur Dioxide
 C3H6 - Propylene
 1Buten - 1-Butylene
 cButen - Cis-Butene (cis-2-Butene)
 iButen - Isobutene
 tButen - Trans-2-Butene
 COS - Carbonyl Sulfide
 DME - Dimethylether (C2H6O)
 SiH4 - Silane
 R-11 - Trichlorofluoromethane (CCl3F)
 R-115 - Chloropentafluoroethane (C2ClF5)
 R-116 - Hexafluoroethane (C2F6)
 R-124 - Chlorotetrafluoroethane (C2HClF4)
 R-125 - Pentafluoroethane (CF3CHF2)
 R-134A - Tetrafluoroethane (CH2FCF3)
 R-14 - Tetrafluoromethane (CF4)
 R-142b - Chlorodifluoroethane (CH3CClF2)
 R-143a - Trifluoroethane (C2H3F3)
 R-152a - Difluoroethane (C2H4F2)
 R-22 - Difluoromonochloromethane (CHClF2)
 R-23 - Trifluoromethane (CHF3)
 R-32 - Difluoromethane (CH2F2)
 R-318 - Octafluorocyclobutane (C4F8)
 R-404A - 44% R-125, 4% R-134A, 52% R-143A
 R-407C - 23% R-32, 25% R-125, 52% R-143A
 R-410A - 50% R-32, 50% R-125
 R-507A - 50% R-125, 50% R-143A
 C-15 - 15% CO2, 85% Ar
 C-20 - 20% CO2, 80% Ar
 C-50 - 50% CO2, 50% Ar
 He-50 - 50% He, 50% Ar
 He-90 - 90% He, 10% Ar
 Bio5M - 5% CH4, 95% CO2
 Bio10M - 10% CH4, 90% CO2
 Bio15M - 15% CH4, 85% CO2
 Bio20M - 20% CH4, 80% CO2
 Bio25M - 25% CH4, 75% CO2
 Bio30M - 30% CH4, 70% CO2
 Bio35M - 35% CH4, 65% CO2
 Bio40M - 40% CH4, 60% CO2
 Bio45M - 45% CH4, 55% CO2
 Bio50M - 50% CH4, 50% CO2
 Bio55M - 55% CH4, 45% CO2
 Bio60M - 60% CH4, 40% CO2
 Bio65M - 65% CH4, 35% CO2
 Bio70M - 70% CH4, 30% CO2
 Bio75M - 75% CH4, 25% CO2
 Bio80M - 80% CH4, 20% CO2
 Bio85M - 85% CH4, 15% CO2
 Bio90M - 90% CH4, 10% CO2
 Bio95M - 95% CH4, 5% CO2
 EAN-32 - 32% O2, 68% N2
 EAN-36 - 36% O2, 64% N2
 EAN-40 - 40% O2, 60% N2
 HeOx20 - 20% O2, 80% He
 HeOx21 - 21% O2, 79% He
 HeOx30 - 30% O2, 70% He
 HeOx40 - 40% O2, 60% He
 HeOx50 - 50% O2, 50% He
 HeOx60 - 60% O2, 40% He
 HeOx80 - 80% O2, 20% He
 HeOx99 - 99% O2, 1% He
 EA-40 - Enriched Air-40% O2
 EA-60 - Enriched Air-60% O2
 EA-80 - Enriched Air-80% O2
 Metab - Metabolic Exhalant (16% O2, 78.04% N2, 5% CO2, 0.96% Ar)
 LG-4.5 - 4.5% CO2, 13.5% N2, 82% He
 LG-6 - 6% CO2, 14% N2, 80% He
 LG-7 - 7% CO2, 14% N2, 79% He
 LG-9 - 9% CO2, 15% N2, 76% He
 HeNe-9 - 9% Ne, 91% He
 LG-9.4 - 9.4% CO2, 19.25% N2, 71.35% He
 SynG-1 - 40% H2, 29% CO, 20% CO2, 11% CH4
 SynG-2 - 64% H2, 28% CO, 1% CO2, 7% CH4
 SynG-3 - 70% H2, 4% CO, 25% CO2, 1% CH4
 SynG-4 - 83% H2, 14% CO, 3% CH4
 NatG-1 - 93% CH4, 3% C2H6, 1% C3H8, 2% N2, 1% CO2
 NatG-2 - 95% CH4, 3% C2H6, 1% N2, 1% CO2
 NatG-3 - 95.2% CH4, 2.5% C2H6, 0.2% C3H8, 0.1% C4H10, 1.3% N2, 0.7% CO2
 CoalG - 50% H2, 35% CH4, 10% CO, 5% C2H4
 Endo - 75% H2, 25% N2
 HHO - 66.67% H2, 33.33% O2
 HD-5 - LPG: 96.1% C3H8, 1.5% C2H6, 0.4% C3H6, 1.9% n-C4H10
 HD-10 - LPG: 85% C3H8, 10% C3H6, 5% n-C4H10
 OCG-89 - 89% O2, 7% N2, 4% Ar
 OCG-93 - 93% O2, 3% N2, 4% Ar
 OCG-95 - 95% O2, 1% N2, 4% Ar
 FG-1 - 2.5% O2, 10.8% CO2, 85.7% N2, 1% Ar
 FG-2 - 2.9% O2, 14% CO2, 82.1% N2, 1% Ar
 FG-3 - 3.7% O2, 15% CO2, 80.3% N2, 1% Ar
 FG-4 - 7% O2, 12% CO2, 80% N2, 1% Ar
 FG-5 - 10% O2, 9.5% CO2, 79.5% N2, 1% Ar
 FG-6 - 13% O2, 7% CO2, 79% N2, 1% Ar
 P-10 - 10% CH4, 90% Ar
 D-2 - Deuterium

 

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