Discharge volume and discharge length of horizontal pipes
The relationship between discharge volume and discharge length - 4 inches loss in elevation - for horizontal pipes are indicated below.
- 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
Example - Horizontal Pipe and Water Discharge Length
If 100 gpm water is discharged from a 2 1/2" horizontal pipe - the discharge length can be estimated from the chart above to approx. 13 inches.