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The Ultrasonic Advantage

Ultrasonic flow meters are not affected by changes in the composition of the fluid when determining actual volumetric flow, making them well suited to measure rich or lean natural gas as well as hydrocarbon liquids.

How It Works

Transit Time Measurement

Ultrasonic flow meters calculate the flow rate by measuring the velocity of fluid flowing through a pipe. The most common type of ultrasonic technology in use by oil and gas operators is based on the theory of transit time measurement, with time over a fixed distance being the critical unit of measure. The meters are configured with transducers and powerful, high-speed electronics that work in tandem to provide a wealth of diagnostic data to ensure maximum uptime with minimal maintenance.


Newer Daniel gas ultrasonic transducer models offer increased longevity and are more tolerant of wet, rich and/or dirty gas to increase uptime, minimize maintenance and reduce spare part costs. Upgrade conversion kits available.

Path Counts

Designed for custody transfer applications, this next-generation four-path ultrasonic meter retains the field-proven SeniorSonic chordal meter design while significantly increasing sampling speed with new, more powerful Daniel 3410 Series Electronics.


Optimize the performance of Daniel gas and liquid ultrasonic flow meters by keeping the electronics firmware current. Review the release notes by electronics type for a full list of the latest enhancements and fixes.

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Surge Protection

Packaged, easy-to-integrate surge relief systems provide comprehensive surge protection and flow measurement, combining field-proven technologies and deep application expertise to ensure pipeline integrity and HSE protection.

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