Apex Mass Flow Control and Meter Selection

Welcome to the Apex App for selecting the proper Apex Mass Flow Controller or Apex Flow Meter for your application. This App will walk you through the equipment needed with information along the way.

Once complete, submit and we should have the information needed to send you a quotation for the full system.

You are welcome to call us with questions or use the chat box on this page for immediate attention during busines hours. You can reach us at 800-331-2808
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Do you need to control the flow or just measure?
Help: The difference between a meter and controller is the controller has a valve to regulate the set flow.
What is the full scale range?
Help: The full scale value is the maximum flow you need to flow with this device.
For use in vacuum
Help: Is vacuum pressure present?
Vacuum pressure meter will be exposed to
This is the vacuum pressure value at the Apex unit.
AirArgonMethaneCarbon DioxideCarbon MonoxideEthaneHydrogenHeliumNitrogenNitrous OxideNeonOxygenPropanen-ButaneAcetyleneEthyleneiso-ButaneCis-Butene (cis-2-Butene)Carbonyl Sulfide (COS)KryptonXenonSulfur HexaflourideWelding Gas C-25Welding Gas C-8Welding Gas C-2Welding Gas C-75Welding Gas A-75Welding Gas A-25Welding Gas A-1025Welding Gas Star29Welding Gas P-5Nitirc OxideNitrogen TriflourideAmmoniaChlorine Gas (Meters Only)Hydrogen SulfideSulfur Dioxide (Meters Only)Hydrogen Sulfide (H2S)Nitrogen Trifluoride (NF3)Nitric Oxide (NO)Sulfur Dioxide (SO2)PropyleneNitrogen Dioxide up to 0.5% in an inert carrier gasRefrigerant gasesSilaneTrans-ButeneBioreactor Gases 5% CH4 95% CO2Bioreactor Gases 10% CH4 90% CO2Bioreactor Gases 15% CH4 85% CO2Bioreactor Gases 20% CH4 80% CO2Bioreactor Gases 25% CH4 75% CO2Bioreactor Gases 30% CH4 70% CO2Bioreactor Gases 35% CH4 65% CO2Bioreactor Gases 40% CH4 60% CO2Bioreactor Gases 45% CH4 55% CO2Bioreactor Gases 50% CH4 50% CO2Bioreactor Gases 55% CH4 45% CO2Bioreactor Gases 60% CH4 40% CO2Bioreactor Gases 65% CH4 35% CO2Bioreactor Gases 70% CH4 30% CO2Bioreactor Gases 75% CH4 25% CO2Bioreactor Gases 80% CH4 20% CO2Bioreactor Gases 85% CH4 15% CO2Bioreactor Gases 90% CH4 10% CO2Bioreactor Gases 95% CH4 5% CO2Breathing Gases EAN-32 (32% O2+68% N2)Breathing GasesEAN-36 (36% O2+64% N2)Breathing GasesEAN-40 (40% O2+60% N2)Breathing GasesEA-40 (40% O2+60% Air)Breathing GasesEA-60 (60% O2+40% Air)Breathing GasesEA-80 (80% O2+20% Air)Breathing Gases Heliox-20 (20% O2+80% He)Breathing Gases Heliox-21 (21% O2+79% He)Breathing GasesHeliox-30 (30% O2+70% He)Breathing Gases Heliox-40 (40% O2+60% He)Breathing Gases Heliox-50 (50% O2+50% He)Breathing Gases Heliox-60 (60% O2+40% He)Breathing Gases Heliox-80 (80% O2+20% He)Breathing Gases Heliox-99 (99% O2+1% He)Breathing Gases Metabolic Exhalant (16% O2+78.04% N2+5% CO2+0.96% Ar)Chromatography P-5 (5% CH4+95% Ar)Chromatography P-10 (10% CH4+90% Ar)Fuel Gas Coal Gas 50% H2+35% CH4+10% CO+5% C2H4Fuel Gas Endothermic Gas 75% H2+25% N2Fuel Gas HHO 66.67% H2+33.33% O2Fuel Gas LPG HD-5 96.1% C3H8+1.5% C2H6+0.4% C3H6+1.9% n-C4H10Fuel Gas LPG HD-10 85% C3H8+10% C3H6+ 5% n-C4H10Fuel Gas Nat Gas 1 93% CH4+3% C2H6+1% C3H8+2% N2+1% CO2Fuel Gas Nat Gas 2 95% CH4+3% C2H6+1% N2+ 1% CO2Fuel Gas Nat Gas 3 95.2% CH4+2.5% C2H6+0.2% C3H8+0.1% C4H10+1.3% N2+0.7% CO2Fuel Gas Syn Gas 1 40% H2+29% CO+20% CO2+11% CH4Fuel Gas Syn Gas 2 64% H2+28% CO+1% CO2+7% CH4Fuel Gas Syn Gas 3 70% H2+4% CO+25% CO2+1% CH4Fuel Gas Syn Gas 4 83% H2+14% CO+3% CH4Laser Gas 4.5% CO2+13.5% N2+82% HeLaser Gas 6% CO2+14% N2+80% HeLaser Gas 7% CO2+14% N2+79% HeLaser Gas 9% CO2+15% N2+76% HeLaser Gas 9.4% CO2+19.25% N2+71.35% HeLaser Gas 9% Ne+91% He
What gas connector is preferred?
What type of input/output fitting?
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Provide the full scale range and calibration gas for each unit if not all the same.
Example -Unit 2 10 sccm helium, Unit 3 100 ccm N2 and so on for all units except the first unit.
Will the Apex units be connected to the same computer ,PLC or other system controller?
Will you supply a power supply or do you want to plug into a wall plug?
How will you communicate with the Apex?
Length of Communication Cable
Need High Accuracy Calibration
Should be Empty: