Flare Gas Flow Meters for Direct Mass Measurement in Flare and Combustor Gas Applications

Fox Thermal Flow Meters for Flare Applications

Flare stacks and enclosed combustors (or vapor combustors) are used to burn waste gases from Oil & Gas Production, gas processing facilities, dehydration facilities, tank batteries, tank farms, and industrial plants. These flares often convert chemical and organic hydrocarbons into primarily water vapor and CO2. Some processes also use relief valves to vent flammable gases to the flare stack during upset conditions.

Other applications for flare and combustor gas flow meters include oil and gas well drilling operations, oil refineries, chemical process plants, gas distribution infrastructure, and landfills. Flares and combustors are subject to stringent regulations, requiring operators to measure, record and report the amount of flared gases.

Due to the potential for large changes in flow rates, density, pressure and gas composition, flare gas measurement is one of the most difficult and demanding flow applications. Fox thermal mass flow meters have demonstrated their ability to measure the low flow rates typical of normal flare conditions, and also the high velocities found in upset conditions. A flare gas meter by Fox is especially equipped for flare applications.

Fluid composition and installation anomalies can also affect flare gas flow meter performance. Fox Thermal Instruments’ Calibration Lab employs a wide range of gases, gas mixtures, temperatures, pressures and line sizes to simulate actual fluid and process conditions while calibrating flare gas flow meters. This real-world approach improves installed accuracy and minimizes measurement uncertainty.

There are a number of advantages to thermal mass flow meters by Fox Thermal Instruments:

  • Exceptional low-flow sensitivity for accurate measurement over a wide range of flaring operations
  • Heated stainless steel sensor is suitable for corrosive, particulate-laden gas streams
  • No temperature and pressure compensation required
  • Direct Mass Measurement
  • Built-in alarms, totalizers and a wide variety of communications protocols available for easy interfacing with emissions management systems

Flares and combustors are known for having varying velocities. For this reason, a flow meter that can handle both very low and high flow rates of gas flow is ideal for these applications. The Model FT3 was designed to withstand these conditions. It is a rugged flow meter perfect for use in oil & gas applications needing accurate and repeatable gas flow measurement.

Configure a Fox meter for your flare or combustor gas application now!

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Fox Thermal Instruments strives to design and manufacture the most innovative and reliable thermal mass flow meter products to our customers. All Fox meters measure mass flow rate and are available in insertion and inline models. Fox models FT1, FT2A and FT3 are mass flow meters and temperature transmitters providing isolated 4-20mA and pulse output for flow rate, and a 4-20mA pulse output for process gas temperature or a second flow rate output.

Fox flow meters are often calibrated to measure air flow. Please review the product features for Models FT1, FT2A and FT3 for further information about our thermal mass flow meter products. If you’re not sure which meter is right for your flare and combustor gas application, use our Help Me Choose app to find the ideal meter or Contact Us today!

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