Flowmeter combines 2 differential pressure technologies

Accelabar flowmeter from Veris Inc. combines two differential pressure technologies to produce high accuracy with no straight run requirements over operating ranges said to be previously unattainable in a single meter.

02/17/2005



Accelabar flowmeter from Veris Inc. can generate high differential pressures for measuring gas, liquids, and steam at turndowns up to 65:1 with no straight run requirements.

Accelabar flowmeter from Veris Inc . combines two differential pressure technologies to produce high accuracy with no straight run requirements over operating ranges said to be previously unattainable in a single meter.

Device includes a nozzle design with a Verabar averaging pitot sensor. Nozzle has a patented straight run “settling distance” that accelerates, linearizes, and stabilizes the velocity profile sensed by the Verabar. Located within the nozzle, the Verabar produces and substantially increases the differential pressure output resulting in operating ranges up to 65:1. Company says testing at independent NIST traceable flow laboratories has verified that the Accelabar has a constant flow coefficient over the entire range for an accuracy of

The device is intended for applications that do not have sufficient velocity to produce a readable signal or sufficient turndown, require high accuracy over an extended range, and have little or no straight run piping before the meter. Performance characteristics are said to exceed those of other DP meters, vortex meters, and many other flowmeters. Meter is recommended for gas, liquid, and steam applications with high velocity flow rates and maximum turndown requirements.

—Jeanine Katzel, senior editor, Control Engineering, jkatzel@reedbusiness.com





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