Perhaps it's my fault, I just found DN = Diameter Nominal. The term Diameter Nominal refers to the internaldiameter of a pipe. Together with the nominal pressure rating and the materials class, all dimensions of a piping line, e. g. flange dimensions, are defined by indicating the nominal diameter. Steel is often not specified, but assumed as material.
So perhaps I should have translated binnendiameter to "internaldiameter" ? m. On Fri, Jan 25, 2019 at 10:41 AM François Lacombe <fl.infosrese...@gmail.com> wrote: > > Hi Marc > > Le ven. 25 janv. 2019 à 09:07, Marc Gemis <marc.ge...@gmail.com> a écrit : >> >> In Belgium it is the inner diameter of the water main. Lowest value >> I've seen is 50, highest 400 or so. > > > Are you sure it's the inner diameter instead of the nominal diameter? > They're not always equals > > ISO 6708 defines the nominal diameter (DN) and it is way more used in > plumbing than the internal one. > https://www.techstreet.com/standards/din-en-iso-6708?product_id=1072836 > > OSM diameter=* regards the nominal diameter > https://wiki.openstreetmap.org/wiki/Key:diameter > > All the best > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
