Transcription of Flange comparison Guide - James J. Doherty Ltd.
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Flange comparison GuideSelect Size Below for comparisonWhat is DN?DN stands for 'Diameter Nominale'. Put simply, it is a rough translation of mm from imperial sizes, assuming that an inch is refer to a 12" Flange as DN300, when in fact it is is the PCD?There are several standards for flanges, and we deal with four of them;Table DTable ETable FTable GTable HTable JTable KTable CTable DTable ETable FTable GTable HTable JANSI 125 ANSI 150 ANSI 300 ANSI 600 ANSI 900 ANSI 1500BS4504-6PN6BS4504-10PN10BS4504-16PN1 6BS4504-25PN25BS4504-40PN40BS4504-64PN64 BS4504-100PN100 "DN153"DN8014"DN350 "DN204"DN10015"DN3751"DN255"DN12516"DN40 01 "DN326"DN15018"DN4501 "DN408"DN20020"DN5002"DN5010"DN25024"DN6 002 "DN6512"DN300 The PCD of a Flange is one of the critical (Pitch Circle Diamet)
- BS10 Table E is the most popular for applications with water. All dimensions are specified in inches. Australia n Standard - AS2129 These flanges are equivalent to the BS10 flanges, except that all dimensions are specified in mm. In some sizes, bolt holes are slightly larger to give better clearance. American National
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