New Titanium sensor for Emerson ultrasonic gas flowmeters

Emerson has released the Daniel T-200, a titanium-housed transducer, for its gas ultrasonic flow meter product line, marking the first use of metal 3D printing to enhance the acoustic performance of ultrasonic flow meters in gas custody transfer applications. The robust design of the T-200 provides increased reliability, uptime and safety while achieving the highest accuracy class attainable in gas flow measurement.

In an ultrasonic flow meter, transducers generate acoustic signals that are sent back and forth across the fluid stream. The difference in the transit times of these signals is used to determine the fluid flow velocity. Signal quality and strength are critical to measurement accuracy, which is paramount in custody transfer applications. An error of only 0.1% can equate to hundreds of thousands of Euros annually, in a large diameter high pressure pipeline.

“The mini-horn array of the T200 could not be made without metal 3D printing technology, making it transformational to the sound quality and performance achievable through a titanium barrier,” said Kerry Groeschel, director of ultrasonic technology, Emerson. “Emerson is committed to developing innovative solutions that help our customers achieve safer, more efficient operations.”

This all-metal sensor housing provides a barrier from corrosive hydrocarbon fluids and wet gas, thereby extending the life of transducer components and ensuring stable performance. This unique design allows the meter to be hydrotested with transducers in place, steam cleaned while in the operating line and blown down – with no limits on the rate at which the meter can be depressurised.

The T-200 can also be safely extracted while the meter is under pressure without special high-pressure extraction tools, which reduces the possibility of greenhouse gas emissions during an extraction. The capsule which contains the piezoelectric crystal – used to create and detect the ultrasonic sound waves – is retractable as a single piece, for simplicity and ease of use.

The new design is rated for a wide range of operating conditions, including pressures from 1 bar gauge (barg)/103 Kilopascal (kPa) to 255 barg/25,855 kPa and temperatures from -50 to 125 degrees Celsius.

For more information please consult the Emerson ultrasonic flowmeter website.