Fluid flow is the amount of fluid that moves in a given amount of time. When measuring the flow of water resources, many units are frequently used, including cubic feet per second (cfs), cubic meters per second (cms), gallons per minute (gpm), and others.

The measurement of the resource flow is crucial for many applications, including system control, billing, design, and many more.

Systems for managing the flow of the resources can be measured using a variety of techniques. This page contains some basic information on flow measurement as well as an overview of some of the most popular flow metering techniques.

A flow meter is usually mounted in a process line. The process gas flow profile is optimized by the built-in flow conditioner in this flow-meter setup. The fact that the in-line flow-meter requires less of a straight run than the insertion-style meter allows the end-user to typically reduce the length of the upstream straight run to three pipe diameters is one of its benefits.