Difference between revisions of "Drain"
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Revision as of 12:46, 2 May 2017
[1] Near horizontal pipe suspended within a building or buried in the ground to which stacks or ground floor appliances are connected. Note: In accordance to BS EN 12056-3:2000, the near horizontal drainage pipes are to be designed based on open channel principle. As such for pipes at a gradient of less than 10 ° from horizontal are designed as drains with maximum 70% fill rate.
The flow in offsets less than 10° to the horizontal shall be calculated as a drain with a filling degree of not more than 70% unless national and local regulation and practice states otherwise.
[2] Includes any canal, culvert, conduit, river or watercourse
[3] Pipeline, usually underground, designed to carry wastewater from a source to a sewer
References:
- BS EN 12056-5:2000
- Code of Practice on Surface water drainage 6th Edition –Dec 2011
- BS EN 752:2008
