How do I choose between turbine, rotary, and ultrasonic gas flowmeters?

A turbine gas flowmeter, such as the TBQM, is suitable for fiscal or in-plant measurement where the gas is relatively clean and stable. It provides a wide pressure range, pulse outputs, and accuracy suitable for commercial and industrial metering.

A rotary gas flowmeter, such as the TYL, is based on positive displacement measurement. It offers low starting flow, wide rangeability, and stable performance under varying flow conditions.

An ultrasonic gas flowmeter, such as the TUS, TUS-W, or TUF, has no moving measuring components. It is suitable for applications requiring low maintenance, wide rangeability, bidirectional measurement, intelligent diagnostics, and digital communication.

Selection should be based on minimum and maximum flow, pressure, accuracy class, gas cleanliness, installation conditions, maintenance requirements, and whether the application involves process control or custody transfer.