iScaper Rating The volume of flow in a sprinkler system is measured in gallons per minute (gpm) in the US, and in liters per second (L/s) metrically. The velocity of flow is measured in linear feet per second (ft/s), meters per hour (m³/h), or liters per minute (l/m). Flow in pipe is always accompanied by… Continue reading Flow, Velocity, & Friction Loss
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