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Coriolis principle small flow meter/flow controller, Best accuracy mass flow meter for gas, liquid and steam. It can detect 40 g/h flow or even lower.
Metal tube rotameter can work on the water low flow min to 1.6 Liter/hour, it can be used to detect fluids micro flow rate. Metal tube variable area flowmeter is one of the oldest flow measurement tec...
Low flow gas flow meter is a device used to measure the flow rate of gas at relatively low flow rates which could be as low as 2 SCCM or 2 ml/min at standard condition. Low volume gas flow meter is designed to accurately measure the quantity of gas passing through a system or a specific point in a pipeline. Silver Automation Instruments offer very low gas flow meter or flow controller.
Low flow gas flow meters are commonly used in various industries such as pharmaceutical, lab, research and development, chemical processing, and environmental monitoring, where precise and small flow rate gas flow measurements are crucial, for example small flow air flow meter, micro CO2 flow gas flow meter, low volume natural gas flow meter,miniature nitrogen (N2) gas flow sensor,mixted gas HHO (Hydrogen Molecule, Hydrogen and Oxygen, separated, pure mixture) at low velocity.
A biotech lab in Germany needed to control nitrogen purge flow between 0-100 SCCM for a cell culture process. Standard flow meters could not hold steady readings at that range. We supplied a thermal mass flow controller with 0-100 SCCM range and 4-20mA output, integrated directly into their existing PLC. The lab has run it in continuous operation for over a year without recalibration issues.
A biogas plant in Southeast Asia needed to monitor low volume gas flow from a small digester before it reached the main pipeline, flow rates as low as 5 SL/M with gas composition that varied by season. We recommended a thermal gas flow meter calibrated for a mixed biogas profile, with Modbus RTU output for remote monitoring. The plant now tracks daily gas yield without sending staff to the site.
A semiconductor component manufacturer needed CO2 flow control at 0-200 SCCM for a cleaning process, with tight accuracy requirements and a compact footprint due to limited panel space. We supplied a miniature CO2 mass flow controller under 75mm in length, with digital display and relay output for process interlock.
These are typical low flow gas applications we support: lab gas dosing, biogas metering, semiconductor process gas, and small-scale chemical gas control. Tell us your gas type, flow range, and pressure, and we will recommend a meter that fits your process.
Silver Automation Instruments offer low flow gas flow meter is a kind of thermal Mass Flow Meters: this micro flow gas flow meter operates on the principle of heat transfer. Miniature gas flow meters measure the cooling effect of gas flow on a heated sensor or the heat transferred to a flowing gas. The low velocity flow rate is calculated based on the temperature difference between the heated and cooled miniature gas flow meter sensor.
When selecting a low flow gas flow meter, it's essential to consider factors such as the required flow range, gas composition, pressure, temperature, accuracy requirements, and compatibility with the specific gas and application. It's recommended to consult with a flow meter supplier or a professional to determine the most suitable meter for your specific needs, please email sales@silverinstruments.com to get low price and affordable micro gas flow meter.
Quick Answer: Thermal mass flow meters like the SRK-DL work best for single, known gases at low pressure, down to 1 to 2 psi, and flows from 2 SCCM to 30 SL/M. Coriolis meters like the SH-CMF-FE need higher line pressure to generate a stable Coriolis effect and handle mixed or unknown gas compositions from 40 g/h up to 1000 kg/h.
| Parameter | SRK-DL Thermal flow meter for low flow gas | SH-CMF-FE Coriolis series for low flow gas |
|---|---|---|
| Range | 2 SCCM to 30 SL/M or higher | 40 g/h to 1000 kg/h |
| Accuracy | ±1% F.S | ±0.5% F.S (gas), ±0.25% F.S (liquid) |
| Pressure suitability | Works well at very low pressure, 1 to 2 psi and up | Needs higher pressure for stable operation, not suited to very low psi gas lines |
| Gas sensitivity | Calibrated per gas type, drifts if composition changes | Independent of gas type, pressure, and density |
| Density output | No | Liquid density only, not displayed for gas |
| Best fit | Single known gas, low pressure lines, tight budget | Mixed gas streams, higher pressure processes, custody-grade accuracy |
| Cost | Baseline | Significant cost premium over thermal mass flow meter |
Here's the thing. A lot of engineers assume Coriolis is the safe upgrade for any gas job, but if your line runs at a couple psi, thermal is usually the better fit, both technically and on price. We have seen customers try Coriolis on a low pressure nitrogen purge line and get poor zero stability because there was not enough pressure to drive the effect. Save Coriolis for higher pressure or liquid duty where its accuracy and independence from gas properties actually pay off.
Send us your gas type, line pressure (psi or bar), and flow range (SCCM or kg/h) and we can recommend the right technology for your application.
Although the volume of the micro gas flow meter is very small, the price is not particularly low. However, our company's supply of micro gas flow meters has been verified in the market for many years and has very stable working performance, and the price is also very low. The price of small flow gas flow meters is as low as $650. Welcome to provide detailed small flow gas measurement parameters by email sales@silverinstruments.com. We will choose a suitable and low-cost micro gas flow meter for you.
The lowest flow rate depends on the meter technology. Thermal mass flow meters can measure gas flow as low as 2 SCCM (2 ml/min at standard condition). Coriolis flow meters can go even lower in some models, down to 40 g/h. The actual minimum depends on gas type, pipe size, and required accuracy. Contact us with your specific flow range and we will recommend the right sensor.
Yes, but the meter needs to be set for the specific gas or gas mixture. Thermal mass flow meters are usually calibrated by air or N2, since different gases have different thermal properties. If your application involves switching between gases, tell us the gas types in advance so we can set a meter with selectable gas tables.
Most micro gas flow meters need recalibration every 12 to 24 months under normal operating conditions.
SCCM stands for Standard Cubic Centimeters per Minute, SLPM stands for Standard Liters per Minute. Both are volumetric flow units at standard conditions (typically 0°C or 25°C, 1 atm). 1 SLPM equals 1000 SCCM. SCCM is used for very small flow rates, SLPM is used when the flow rate is larger, roughly above 1 liter per minute.
Yes, for thermal mass flow meters, accuracy depends on the gas's specific heat and thermal conductivity, so the meter must be set for the exact gas or gas mixture used. If the actual gas composition changes from what the meter was calibrated for, readings will drift. Coriolis flow meters are less affected by gas composition since they measure mass directly through the Coriolis effect, not thermal properties.
No, explosion-proof and intrinsically safe versions are not available for small gas flow meters.
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