Application Guide for Thermal Mass Flow Meters

Sage Metering manufactures precision thermal mass flow meters that measure gas mass flow and excel in applications including non-custody transfer natural gas, flare gas, energy management, combustion control, biogas, and air flow.

In the market for a mass flow meter?

yellow-pipes-tnNatural Gas

Even though the AGA has not approved thermal mass flow meters as a custody transfer meter for utility billing, there are many applications in the industrial sectors and utilities where this meter style excels. These uses include measuring the natural gas flow rate in combustion control, greenhouse gas reporting, submetering, and real-time gas measurement in pipelines.


Measure Flare GasFlare Gas

We use gas flares as a safety device to burn off the excess or unintentionally released gases. Flares are found in natural gas production and distribution, oil refineries, wastewater treatment, and the steel industry. In these applications, thermal mass flow meters are ideal for measuring gas flow.


Energy ManagementEnergy Management

As industries adopt energy management systems, it becomes necessary to accurately measure gas flow to establish baseline usage and continuously monitor the gas usage to improve the process. There are applications within these systems that thermal mass flow meters excel in, including natural gas consumption, combustion control, and compressed air monitoring.


Combustioncombustion triangle

Combustion is the process of burning fuel in the presence of oxygen, and its efficiency depends on the air-to-fuel ratio. When measuring the air flow and natural gas flow to a combustion device, we can create optimum operating conditions to achieve complete combustion.



Thermal mass flow meters provide an accurate and reliable biogas measurement and offer distinct advantages over alternative flow meters. This meter type satisfies gas measurement at wastewater treatment plants, in waste-to-energy projects, and at landfills. In any of these biogas applications, consider the moisture content of the biogas.



Air is a mixture of gases and is used in industrial and commercial applications. There are costs associated with providing and treating air for these processes. Industrial applications using air, such as combustion air, compressed air, spray drying, and aeration air, achieve higher efficiencies when measuring and controlling air flow using thermal mass flow meters.