Open Horizontal Pipes - Discharge Length vs. Volume Flow

Discharge volume and maximum length for horizontal pipes.

• 1 gal (US)/min =6.30888x10^-5 m³/s = 0.227 m³/h = 0.06309 dm³(litre)/s = 2.228x10^-3 ft³/s = 0.1337 ft³/min = 0.8327 Imperial gal (UK)/min
• 1 in (inch) = 25.4 mm = 2.54 cm = 0.0254 m = 0.08333 ft

• Discharge volume flow from vertical pipes

Example - Horizontal Pipe and Length of Water Discharge

If 100 gpm water is discharged from a 2 1/2" horizontal pipe

- the discharge length can be estimated from the chart above to approximately 13 inches.

Example - Estimating Volume Flow with Discharge Length

The volume flow  from a pipe can be estimated by measuring the horizontal length of the discharging flow.

If the discharge length from a 2 1/2" horizontal pipe is measured to 13 inches

- the volume flow discharged can be estimated to approximately 100 gpm.

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