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Pipe Velocities

Calculate fluid flow and pipe velocity

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Imperial units

A fluids flow velocity in pipes can be calculated with Imperial or American units as

v = 0.4085 q / d2         (1)

where

v = velocity (ft/s)

q = volume flow (US gal. /min)

d = pipe inside diameter (inches)

SI units

A fluids flow velocity in pipes can be calculated with SI units as

v = 1.274 q / d2         (2)

where

v = velocity (m/s)

q = volume flow (m3/s)

d = pipe inside diameter (m)

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Related Topics

  • Fluid Flow and Pressure Drop Pipe lines - fluid flow and pressure loss - water, sewer, steel pipes, pvc pipes, copper tubes and more
  • Pipe Sizing Sizing steam and condensate pipes - pressure loss, recommended velocity, capacity and more
  • Fluid Mechanics The study of fluids - liquids and gases. Involves various properties of the fluid, such as velocity, pressure, density and temperature, as functions of space and time.

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