In this article…
Introduction
Selecting the correct industrial gas meter is critical for ensuring safe, accurate, and reliable measurement across industrial gas systems.
From manufacturing environments to energy infrastructure, gas meters sit at the centre of monitoring consumption, maintaining compliance, and protecting downstream equipment.
However, specifying the right meter is rarely just about the meter itself. A reliable gas metering system depends on supporting components such as filters, regulators, valves, and volume correctors, all of which help maintain system stability and measurement accuracy.
To help engineers and procurement teams navigate these decisions, MWA Technology has produced a practical mini product guide to industrial gas metering systems, featuring a selection of customer favourite technologies and accessories used across industrial installations.
In this article, we explore key gas metering technologies and explain how supporting equipment works together to ensure reliable system performance.
Why gas meter selection matters
Gas metering systems form a critical part of the wider industrial process and safety infrastructure.
Incorrectly specified systems can lead to inaccurate readings, inefficient system performance, increased maintenance requirements, and/or reduced equipment lifespan.
In industrial environments where gas is used for heating, processing, or energy generation, accurate measurement is essential not only for operational efficiency but also for regulatory compliance and safe system operation.
Choosing the right gas meter, therefore, requires careful consideration of factors such as:
- Gas type
- Pressure range
- Flow rate
- Installation Environment
- System Integration Requirements
Understanding how different gas metering technologies perform under varying conditions is key to selecting the right solution.
Core industrial gas meter technologies
Industrial gas meters are available in several formats, each designed to perform under different flow conditions, pressures, and installation environments.
MWA’s guide explores several commonly used technologies found across industrial gas measurement systems.
Diaphragm gas meters
Diaphragm meters are widely used in low-pressure gas distribution systems. They measure gas flow by filling and emptying chambers in a controlled cycle. These meters are valued for their:
- proven reliability
- stable long-term accuracy
- suitability for steady, lower-flow applications
Vortex flow meters
Vortex meters detect vortices created when gas flows past a bluff body. They are frequently used for:
- gas and steam flow monitoring
- energy systems
- industrial utilities
Turbine gas meters
Turbine meters measure gas flow using a turbine wheel that rotates proportionally to gas velocity. They are particularly suited to:
- high flow rate applications
- stable operating conditions – industrial process monitoring
Ultrasonic gas meters
Ultrasonic meters measure gas flow using sound waves transmitted between sensors. Because they contain no moving parts, they offer:
- minimal maintenance
- high measurement accuracy
- suitability for large pipelines and high-capacity systems
Thermal mass flow meters
Thermal meters measure mass flow directly using heat transfer sensors. They are commonly used in:
- combustion monitoring
- process control applications
- environmental and emissions monitoring
Coriolis mass flow meters
Coriolis meters measure flow using vibrating tubes that detect changes caused by the movement of gas mass. They provide:
- extremely high measurement accuracy
- direct mass flow measurement
- suitability for specialised industrial processes
Rotary displacement meters
Rotary meters use two precision rotors that rotate as gas flows through the meter body. They are commonly used in:
- commercial and industrial gas systems
- medium to high flow applications
- installations requiring high measurement accuracy
Each technology offers different advantages depending on system requirements, flow conditions, and operating environments.
Essential accessories in gas metering systems
Gas meters rarely operate in isolation. Supporting equipment plays a critical role in protecting components, stabilising system conditions, and ensuring accurate measurement.
Gas filters
Industrial gas filters remove contaminants and particulates from the gas stream before it reaches the meter.
This protects sensitive components and helps maintain long-term measurement accuracy.
Pressure regulators and governors
Pressure regulators ensure gas pressure remains within safe and stable operating limits.
Maintaining consistent pressure improves measurement stability and protects both the meter and downstream equipment.
Solenoid safety valves
Solenoid valves provide automated safety shut-off capability, allowing systems to isolate gas supply in response to safety controls or system faults.
Gas volume correctors
Gas volume correctors adjust measured gas volume to account for variations in temperature and pressure.
This ensures the recorded gas volume reflects standard reference conditions, providing more accurate and reliable consumption data.
Together, these components form a complete gas metering system designed to deliver reliable measurement and long-term operational performance.
A pocket-sized guide, with dictionary-depth insights
MWA’s new mini guide brings together:
- seven key gas metering technologies (see the customer favourites!)
- essential accessories frequently installed alongside gas meters
The guide provides a clear overview of how these components interact within industrial gas infrastructure and helps readers identify the most appropriate configuration for their application.
If you are reviewing gas metering systems, upgrading existing infrastructure, or specifying equipment for a new installation, the guide provides a useful starting point.
Supporting you, the MWA way
With over 40 years of experience in industrial metering and instrumentation, MWA Technology supports engineers across the UK and beyond with reliable measurement solutions.
Our team can assist with product selection, system specification, installation guidance, and ongoing technical support.
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FAQs
What is an industrial gas meter used for?
An industrial gas meter measures the volume of gas flowing through a system. These meters are used across manufacturing, energy infrastructure, and processing plants to monitor gas consumption and maintain safe system operation.
How do you choose the right gas meter?
Choosing the right meter depends on factors such as gas type, pressure range, flow rate, and installation conditions. Engineers must also consider supporting components such as filters, regulators, and volume correctors.
What accessories are used with gas meters?
Common accessories include industrial gas filters, pressure regulators, solenoid valves, and gas volume correctors. These components help maintain stable operating conditions and protect the metering system.
What is a gas volume corrector?
A gas volume corrector adjusts measured gas volume to account for changes in temperature and pressure, ensuring gas measurement reflects standard reference conditions.
