In a water distribution system, what is the term for the volume of water that flows through a pipe?

The term that describes the volume of water flowing through a pipe is known as flow rate. It is a critical measurement in water distribution systems, as it indicates how much water is being moved from one point to another over a specific period of time. Flow rate is typically expressed in units such as gallons per minute (GPM) or cubic meters per second (m³/s).

Understanding flow rate is essential for operators as it helps in managing water supply, ensuring adequate pressure in the system, and predicting how changes in pipe sizes or configurations will impact the overall distribution network. In contrast, head loss refers to the energy loss due to friction and other factors as water flows through the pipe, while static pressure pertains to the pressure exerted by water at rest. Velocity pressure is associated with the kinetic energy of the flowing water, but it doesn’t directly represent the volume being transported.