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Title: Investigation Of The Influence Of A Pressure Reducer Placed Upstream Of A Turbine Meter
Author: A. Strzelecki, P. Gajan, L. Malard, D. Donat, m. Bosch
Source: 1995 International Symposium on Fluid Flow Measurement
Year Published: 1995
Abstract: A pressure reducer is a commonly used device for regulating gas flow in pipelines. This device provides a mechanical constriction in the pipe which reduced the cross sectional flow area and induces a local pressure drop in the flow. A pressure reducer can generate a strong disturbed flow and may induce significant metering errors on flowmeters placed dowstream. This paper presents metering errors obtained with a turbine meter placed downstream of a pressure reducer. The influence of the flow rate, the expansion ratio, the size of the internal valve and the distance between the pressure reducer and the turbine is examined.

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