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Jet Fuel Flow Meter 100 L/h: Standard Flow Profiles and Performance Rules
Quick Answer: For a jet fuel flow meter measuring 100 L/h, direct mass measurement wins. Silver Automation Instruments supplies Coriolis mass flow meters that ignore fluid density changes, viscosity, and temperature drift. An oval gear meter remains a lower-cost alternative if your fuel stays clean and filtration is in place.
Most engineers skip this part: 100 L/h falls into a tricky middle ground. It is not a micro-flow below 10 L/h. It is not a bulk transfer above 500 L/min. The jet fuel physical properties can shift enough during a single refueling cycle to throw off a volumetric meter by 2 percent or more. Here is what we see on customer sites in the Middle East, Australia, and Southeast Asia.
What Defines a Standard Flow Profile for Jet Fuel at 100 L/h?
A standard flow profile means the meter output is predictable across a defined turndown range. For a 100 L/h jet fuel application, the flow rarely stays flat. A refueling nozzle opens, flow ramps from 10 L/h to 120 L/h in 2 seconds, holds near 100 L/h for a short period, then drops. The meter must respond within 100 milliseconds to stay relevant for batch control. We tested a Silver Instruments CMF-010 Coriolis sensor on Jet A-1 at a calibration lab in Jakarta. The flow step response from 10 percent to 90 percent of span was under 80 ms. That speed matters when you log data for engine test stands or custody transfer audits.
The flow profile also includes pulsations from gear pumps. Positive displacement pumps create a ripple that a turbine meter would misinterpret as higher flow. An oval gear meter actually handles this ripple well because it is a positive displacement device itself. But a Coriolis meter does not rely on moving parts in the flow path, so it gives a better filtered signal.
Performance Rules You Must Check Before Sizing
Rule one: check your actual low-flow cutoff. A 100 L/h full-scale meter often has a minimum measurable flow near 2 L/h. Below that, the meter output freezes or falls below the accuracy spec. If your refueling process includes a dribble phase at the end, you need a meter that still reads 0.5 L/h with some accuracy. Our CMF-010 maintains ±0.2 percent of rate down to 1 L/h for jet fuel with density around 800 kg per cubic metre.
Rule two: jet fuel viscosity changes with temperature. At minus 20 degrees Celsius, Jet A-1 sits near 8 centistokes. At plus 40 degrees Celsius, it drops below 1 centistoke. A turbine meter scaled for diesel will read 3 to 5 percent too high on cold jet fuel. A Coriolis meter does not care about viscosity. An oval gear meter can compensate if you install a PT100 temperature sensor and apply a correction factor in the flow computer. We have seen a paint manufacturer in Thailand use this approach for solvent blending. Same logic applies to jet fuel, but the calibration must be traceable.
Rule three: entrained air is the silent killer. Jet fuel can pick up air during high-speed transfer. A Coriolis meter can detect air bubbles because the density reading jumps. With a Coriolis transmitter like our ST-1000 series, you can set an alarm when density drops below a threshold. This saves you from billing a customer for air instead of fuel. An oval gear meter cannot detect air, it just trims gear wear faster.
Why a Coriolis Meter Often Wins at 100 L/h Jet Fuel Measurement
A Coriolis mass flow meter directly measures mass flow in kilograms per hour. Since jet fuel is sold by mass in many custody transfer contracts, you skip the density correction completely. For 100 L/h, the mass flow rate sits around 80 kg/h depending on fuel temperature and composition. The Silver Instruments CMF-010 sensor measures from 0.5 kg/h up to 120 kg/h with accuracy ±0.1 percent of rate. Its wetted parts are 316L stainless steel, compatible with Jet A-1 and Jet B. The transmitter comes with a 4-20 mA HART output, a pulse output, and Modbus RTU. No need for a separate density meter.
In a recent project for a fuel depot in Dammam, Saudi Arabia, the customer replaced a faulty turbine meter with a CMF-010 and eliminated monthly recalibration cycles. Their mass ba
Oval Gear Flow Meter as a Lower-Cost Option for Clean Jet Fuel
If your budget is tight and your fuel stays clean and filtered to 10 micron, an oval gear meter works at 100 L/h. Our OM-006 oval gear meter covers 5 to 250 L/h for low-viscosity fluids. It runs at ±0.5 percent accuracy and costs roughly half of a small Coriolis meter. You do need a temperature sensor and a flow computer to correct the volume to a standard temperature, typically 15 degrees Celsius. For jet fuel, the volume correction factor from 40 degrees C to 15 degrees C is about 0.98. Without correction, you lose 2 percent on every shipment. Many operators in Vietnam and the Philippines run oval gear meters on jet fuel bowser trucks with success. Just plan to check gear wear every 6 months.
Flow Meter Signal Output and Logging Requirements for Jet Fuel
Most jet fuel skid controllers expect a 4-20 mA or pulse output. A 4-20 mA loop carries the instantaneous flow rate with a fast update time. Pulse output works well for totalisation. The Silver Instruments CMF-010 and OM-006 both offer these outputs. If your site demands ATEX Zone 1 certification, we can supply the intrinsically safe version with galvanic isolation. For a desalination plant in Oman running backup generators with jet fuel, we integrated a Coriolis meter into a paperless recorder. The recorder logged hourly mass totals and density values for audit compliance. Both products sit in our Australian warehouse for quick dispatch to Oceania and Southeast Asia.
Standard Installation Rules for a 100 L/h Jet Fuel Meter
Pipe diameter is usually DN6 or 1/4 inch for these flow rates. Keep straight run short, because Coriolis meters do not need upstream straight pipe. If using an oval gear meter, install a y-strainer 15 cm upstream. Mount the meter horizontally to keep bearing wear even. Avoid mounting the transmitter directly above a hot engine block. The ambient temperature limit for the CMF-010 electronics is 60 degrees C. In a Gulf summer, shade the meter or put it in a ventilated box. We often supply a sun shield kit for Middle East projects.
For sites with high vibration, a Coriolis meter may need a rigid bracket. The sensor tube vibrates at its natural frequency, and external vibration can confuse the zero. We recommend a zero check before every fuel run. The CMF-010 takes 30 seconds to auto-zero via the transmitter menu.
Jet Fuel Flow Meter FAQ
Can I use a turbine flow meter for jet fuel at 100 L/h? You can, but a turbine meter accuracy depends on viscosity. Jet fuel viscosity drops with temperature, so the meter factor shifts. You need a viscosity curve and frequent recalibration. Most users switch to Coriolis after the first discrepancy audit.
What is the best flow technology for Jet A-1 measurement at low flow? Coriolis mass flow meters give direct mass reading, ignore viscosity and density shifts, and detect air bubbles. Silver Automation Instruments recommends the CMF-010 for 100 L/h and below.
Does an oval gear meter need temperature compensation for jet fuel? Yes. Volume changes about 1 percent for every 10 degrees C shift. Install a PT100 and apply a temperature correction formula in your batch controller or PLC.
How do I get a price for a 100 L/h jet fuel flow meter? Send us your pressure (bar), temperature (°C), pipe size (DN), and flow range. We also need to know if you require ATEX, IECEx, or standard general-purpose certification. Our sales team will return a quote within one working day.
What is the lead time for a CMF-010 Coriolis meter from Australia? Standard models ship from Melbourne in 3 business days. ATEX certified versions may take 2 weeks. Large quantities for a terminal project can be discussed.
Need a jet fuel flow meter that holds accuracy at 100 L/h? Send your operating pressure, temperature, pipe size, and required flow range to our engineers. We will propose a CMF-010 Coriolis meter, an OM-006 oval gear meter, or a custom solution. Visit our product page at flow-meter.com.au or reach out directly.
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