BES Flowmeters supplies industrial gas flow meters for air, natural gas, LPG, compressed gas and process gas measurement. With the highest CPC in our entire dataset at $1.40, gas flow meters represent a high-value commercial segment — and BES has the range and experience to serve it. Our gas meter range includes variable area, digital and thermal mass options from trusted brands.
Gas Flow Meter Technologies
Variable Area Gas Flow Meters
The simplest and most robust gas flow meter technology. A float rises in a tapered tube as gas flows upward — the float position indicates flow rate on a calibrated scale. No power required, no moving electrical parts. BES 7200 Series and MPB Industries variable area meters for air, oxygen, nitrogen, CO2 and specialty gases. See our variable area flow meters.
Digital Gas Flow Meters
Electronic gas flow meters with digital display for accurate real-time flow rate and total volume measurement. Suitable for compressed air monitoring, gas consumption measurement and process control. See our digital flow meters.
Inline Gas Flow Meters
For pipeline gas measurement applications, our inline flow meters include options suitable for compressed air and process gas measurement.
BES 7200 Series — Variable Area Gas Flow Meters
The BES 7200 Series is our most popular gas flow meter range. The Clearview 7200 borosilicate glass tube provides clear visibility of the float position. Available calibrated for air, oxygen, nitrogen, CO2 and other gases. Panel-mount and in-line configurations. Compatible with needle valves for flow control.
Applications
BES gas flow meters are used in medical gas monitoring, laboratory gas measurement, industrial compressed air monitoring, water treatment (chlorine gas), food and beverage (CO2), welding gas measurement and process control.
For gas flow with output signals for SCADA or PLC integration, see our flow transmitters. Request a quote or call (03) 5956 8685.
Frequently Asked Questions
BES Flowmeters’ primary product range covers liquid flow meters. The 7200 Series variable area flow meter (rotameter) supplied by BES can be configured for gas measurement applications. Contact BES Flowmeters to discuss your gas flow measurement requirements and we will advise on suitable products.
A variable area flow meter (rotameter) measures gas flow by using the upward force of the gas stream to suspend a float in a tapered tube. The float position indicates the flow rate on a calibrated scale. The 7200 Series rotameters from BES are available in gas-calibrated versions.
Variable area flow meters can be calibrated for a range of gases including air, nitrogen, carbon dioxide and other non-corrosive gases. Material selection for wetted components must match the gas properties. Contact BES Flowmeters with your gas type, operating pressure and flow range to confirm suitability.
Variable area flow meters typically achieve accuracy of ±2–5% of full scale, depending on the specific model and calibration. For applications requiring higher accuracy, turbine or Coriolis-type meters may be more appropriate. BES Flowmeters can discuss the accuracy requirements for your specific application.
Gas flow meter sizing requires knowledge of the gas type, operating pressure, operating temperature and required flow range (minimum and maximum). These parameters affect the actual volumetric flow the meter sees. Contact BES Flowmeters with your application data and we will confirm the correct meter size.