Do I need to reserve a straight pipe section for insertion gas meters?

Project Overview

The installation of the plug-in gas flow meter is to directly insert the corresponding length according to the diameter of the pipe after opening a hole in the pipe. Unlike the pipe type, it requires major modifications to the original pipe. The plug-in gas flow meter basically does not occupy the length of the pipeline, which also makes users question whether they still need to reserve a straight pipe section?

When installing a pipeline flow meter, we always reserve a straight pipe section. Usually it is 10D before and 5D after, that is, the fluid needs to flow smoothly in the pipeline for no less than 10 pipe diameters to reach the flowmeter, and it also needs to flow smoothly for 5 pipe diameters after flowing through the flowmeter.

This is a general requirement for a straight pipe section of a flow meter, although it is limited to the fact that there are no elbows, obstacles, diameter reductions, valves and other factors that may affect the flow before and after. Therefore, whether it is a pipeline type or an insertion type gas flow meter, it needs to be adhered to.