Some states within the U.S. are requiring that any appliance including boilers have a flow meter to monitor the gas usage. Even if the gas usage for a particular location is only for the boilers, some state regulations as stipulated by the EPA, will not accept the reading from the local gas company’s meter set or their usage that is reported on the monthly usage bill. Some of these states and their zoned areas require that boiler operators document their log books with what the readings or usage is per unit at their site. Measuring this fuel flow is important for a monitoring and reporting standpoint and thermal mass flow technology is an ideal flow metering technique for both monitoring as well as reporting. To go one step further, many companies are utilizing thermal mass flow metering technology to determine optimal air-to-fuel ratios for monitoring air and fuel flow rates to burners. Thermal Instrument has both an insertion and in-line style thermal mass flow meter for this very application. Most of the customers are utilizing our insertion style flow meter for these piping lines. Mass flow rate is a more precise and reliable technique to measure gas flow than is a volumetric flow. The thermal mass flow technology also has a much broader operating flow range and a low pressure drop characteristic. Additionally, there is no pressure or temperature compensation on thermal mass flow technology so the result is a constant differential that is proportional to the gas mass flow rate. The beauty is that flow rate and temperature can be measured with one technology and provided as a dual analog output. Thermal Instrument Company provides a wide variety of installation type sensors and materials of construction for a host of different application conditions. The technology lends itself to offering a fast response time and there are no moving parts to wear out mechanically.

Many competitive style flow meters for this application are large in size with sizable pressure drops and installation restrictions with mounting location in the piping configuration. Installation of a thermal mass flow meter is relatively straight forward in the majority of applications. So if you have an application to monitor natural gas to your burner due to local, state, or federal regulatory mandates, or need to offer some control for air-to-fuel proportioning, then feel free to contact us today to discuss our solutions with you.

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