Minimum Lengths of Straight Pipe for Metering Runs

Minimum Length of Straight Pipe for metering Run (Orifice)

In order to maintain the accuracy for every metering runs the upstream and downstream of the flow orifice or flow meter should have straight pipe length. The following sketch illustrate the minimum straight length requirements.

Orifice Straight length Requirement (Upstream and Downstream)

orifice flow meter straight run, upstream pipe run of flow meter, liquid flow measurement, meter runs