How to Select Gas Flow Meters                     Image Credit: OMEGA Engineering Inc., Aalborg Instruments, Clark Solutions Gas flow meters are used for measuring the flow or quantity of a moving gas.  Measuring the flow of fluids is a critical need in many industrial plants. The ability to conduct accurate flow measurements allows process operators to properly monitor and...
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Q & A on Gas Flow Meters

We asked our users for their input on Gas Flow Meters. Here are the results of 117 users familiar with Gas Flow Meters.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing gas flow meter design?
20 answers
Answers:
Sensor, interfacing to data logger media.
~Engineer, Oberderdingen, Germany
High purity systems
~Bryan K, Engineer, Henrietta, NY
Size, Computerized Communication.
~Charles L, Engineering Consultant, Chester, VA
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Q:
From your perspective, which companies are creating the most innovative gas flow meters?
15 answers
Answers:
Sierra instruments, Fox, Onicon
~Technical Support/Services, Anchorage, AK
Sensirion Bronkhorst
~Charles L, Engineering Consultant, Chester, VA
Micromotion, Daniel
~Felix O, Engineering Consultant, Calgary, Canada
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Applications and UseTop

Q:
What are some of the applications you have used a gas flow meter for?
30 answers
Answers:
Measuring natural gas, CO2 emissions, biogas, digester gas, landfill gas recovery, coal mine methane recovery, air, vent gas, flare gas, and pure gas.
~Project Management, Marina, CA
Lab scale flow experiment air, nitrogen, and compressed air system. Portable field test equipment for pneumatic transport systems.
~Engineering, Consulting, Livonia, MI
Mostly automotive related during design work on pressure / leak testing equipment. I'm currently working on a new way to use flow meters, unfortunately I can't disclose the new use because of current patent concerns.
~Geoff F, Project Manager, Mississauga, Canada
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Q:
Please share with us any “non-standard” applications that a gas flow meter has been used for.
7 answers
Answers:
Wellhead Gas Flow with a high sand content. Wellhead Gas Flow where the water content became ice due to the temperature and it still worked.
~Matt B, Project Manager, Burnham, UK
Fail safe test for normally closed gas train vent valve.
~Technical Support/Services, Anchorage, AK
Permanent control of natural gas quality in BTU/hour.
~Jerry O, Engineering Consultant, New York, NY
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Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of a gas flow meter?
6 answers
Answers:
One meter was purchased for laboratory accuracy. $5000 later, the meter still did not meet our needs. Enormous oscillations on the output signal made it impossible to get an accurate real time reading.
~Raphael W, Engineer, Northvale, NJ
Valve got stuck fully open due to faulty electronics, leading to dumping of a bottle of CO.
~Ryan B, Engineer, Webster, MA
Not selecting appropriate materials for the running pressures.
~Geoff F, Project Manager, Mississauga, Canada

FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
19 answers
Answers:
1. Volumetric flow measurements easily configurable for a big number of gas types (air, LPG, NG,...). 2. Very fast response time (in the order of milliseconds < 250ms) . 3. Very small internal pressure drop.
~Engineer, Oberderdingen, Germany
1. Installation on operated natural gas lines in wide ranges of cabon steel pipes diameters 2mm-1500mm. 2. +/- 2% of reading at 1.1 to 46 m/s.
~Jerry O, Engineering Consultant, New York, NY
Our use of gas flow meters is pretty basic, but integrated temperature and pressure measurement is always a bonus.
~Tessa P, Equipment Manager & Calibration Technician, Nappanee, IN
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Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of a gas flow meter?
9 answers
Answers:
Regarding uncertainties, take into account the overall performance of the metering station. And have a good understanding of uncertainty versus accuracy to begin with.
~Felix O, Engineering Consultant, Calgary, Canada
You need to be specific on the type of gas you are trying to measure, including the system operating pressure and temperature, and accurate pipe data.
~Technical Support, San Jose, CA
Keep an eye on the lower end of your meter curve, that's the place where your accuracy diminishes and uncertainty goes up.
~Raphael W, Engineer, Northvale, NJ
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Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using gas flow meters?
11 answers
Answers:
Consult a calibration lab before buying any custom constructed meters to make sure that calibration is possible and accurate. Also, getting their opinion before purchasing a meter can give you insight on stability and durability as they see many different manufacturers and models.
~Tessa P, Equipment Manager & Calibration Technician, Nappanee, IN
Pay attention to specific gravity of media vs. that which was used to calibrate meter - this WILL affect reading.
~Bryan K, Engineer, Henrietta, NY
From past experience, stick to the PD meters. Unless something horribly goes wrong, they just do not lie.
~Raphael W, Engineer, Northvale, NJ
Need to be specific on type of gas being measured and the installation location.
~Technical Support, San Jose, CA
Previous experience of the application and also extensive application experience of the staff.
~Matt B, Project Manager, Burnham, UK
Check for the best pricing with the best technology. Go with a company that offers technical support 24/7.
~Charles L, Engineering Consultant, Chester, VA
Do not try to save too much money when choosing a gas flowmeter.
~Josip T, Engineer, Split, Croatia
Compare several. Use the expertise of the manufacturer.
~Geoff F, Project Manager, Mississauga, Canada
Make sure you're able to calibrate your flow meters.
~Ryan B, Engineer, Webster, MA
Take into account total cost of ownership
~Felix O, Engineering Consultant, Calgary, Canada
Search before buying.
~João Alves, Installer and user, Palmela, Portugal


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