Flange comparison Guide - James J. Doherty Ltd.

1 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 Diameter)

2 Is the diameter of a circle that goes through each of the bolt holes. British Standard - BS10 Table E is the most popular for applications with water. All dimensions are specified in 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 National Standards Institute (ANSI)Higher numbers denote higher pressures. Sometimes people use the word 'Class' instead of ANSI. an ANSI 150 Flange might be called a 'Class 150'.

3 All dimensions are specified in Standard - BS4504 Engineers use the prefix PN (Pressure Nominale). a BA4504-16 Flange will commonly be referred to as a PN16. Generally, a PN16 Flange is designed to withstand pressures up to 16 bar. All dimensions are specified in = DN15 TableFlangePCDB oltsBoltHole SizeThicknessSizeGrey Cast IronCopper AlloyANSI 125/1503 1/2" / 89mm 2 3/8" / 60mm 4 1/2" 5/8" / 16mm5/16" / 8mm5/16" / 8mmANSI 6003 3/4" / 95mm 2 5/8" / 67mm 4 1/2" 5/8" / 16mm9/16" / 14mmANSI 9004 3/4" / 121mm 3 1/4" / 83mm 4 3/4" 7/8" / 22mm7/8" / 22mmANSI 15004 3/4" / 121mm 3 1/4" / 83mm 4 3/4" 7/8" / 22mm7/8" / 22mmAS2129 Table C95mm67mm414mm13mm13mm10mmAS2129 Table D95mm67mm414mm13mm6mm10mmAS2129

4 Table E95mm67mm414mm13mm6mm10mmAS2129 Table F95mm67mm414mm13mm8mm10mmAS2129 Table H14mm83mm417mm16mm10mm13mmAS2129 Table J114mm83mm417mm16mm16mmBS10 Table D3 3/4" / 95mm 2 5/8" / 67mm 4 1/2" 9/16" / 14mm1/2" / 13mm1/4" / 6mm3/8" / 10mmBS10 Table E3 3/4" / 95mm 2 5/8" / 67mm 4 1/2" 9/16" / 14mm1/2" / 13mm1/4" / 6mm3/8" / 10mmBS10 Table F3 3/4" / 95mm 2 5/8" / 67mm 4 1/2" 9/16" / 14mm1/2" / 13mm5/16" / 8mm3/8" / 10mmBS10 Table H4 1/2" / 114mm 3 1/4" / 83mm 4 5/8" 11/16" / 17mm 5/8" / 16mm3/8" / 10mm1/2" / 13mmBS10 Table J4 1/2" / 114mm 3 1/4" / 83mm 4 5/8" 11/16" / 17mm5/8" / 16mm5/8" / 16mmBS10 Table K4 1/2" / 114mm 3 1/4" / 83mm 4 5/8" 11/16" / 17mm3/4" / 19mm3/4" / 19mmBS4504-680mm55mm4 M1011mm12mmBS4504-1095mm65mm4 M1214mm14mmBS4504-1695mm65mm4 M1214mm14mmBS4504-2595mm65mm4 M1214mm16mm8mm16mmBS4504-4095mm65mm4 M1214mm9mm16mmBS4504-64105mm75mm4 M1214mm20mmBS4504-100105mm75mm4 M1214mm20mmReturn To Index Page DiameterCast / Forged SteelmmmmmmSize = DN20

5 TableFlangePCDB oltsBoltHole SizeThicknessSizeGrey Cast IronCopper AlloyANSI 125/1503 7/8" / 98mm 2 3/4" / 70mm 4 1/2" 5/8" / 16mm11/32" / 9mm 9/16" / 14mmANSI 3004 5/8" / 117mm 3 1/4" / 83mm 4 5/8" 3/4" / 19mm17/32" / 13mm 5/8" / 16mmANSI 6004 5/8" / 117mm 3 1/4" / 83mm 4 5/8" 3/4" / 19mm5/8" / 16mmANSI 9005 1/8" / 130mm 3 1/2" / 89mm 4 3/4" 7/8" / 22mm1" / 25mmANSI 15005 1/8" / 130mm 3 1/2" / 89mm 4 3/4" 7/8" / 22mm1" / 25mmAS2129 Table C100mm73mm414mm13mm13mm10mmAS2129 Table D100mm73mm414mm13mm6mm10mmAS2129 Table E100mm73mm414mm13mm6mm10mmAS2129 Table F100mm73mm414mm13mm8mm10mmAS2129 Table H115mm83mm418mm16mm10mm13mmAS2129 Table J115mm83mm418mm16mm16mmBS10 Table D4" / 102mm2 7/8" / 73mm 4 1/2" 9/16" / 14mm1/2" / 13mm1/4" / 6mm3/8" / 10mmBS10 Table E4" / 102mm2 7/8" / 73mm 4 1/2" 9/16" / 14mm1/2" / 13mm1/4" / 6mm3/8" / 10mmBS10 Table F4" / 102mm2 7/8" / 73mm 4 1/2" 9/16" / 14mm1/2" / 13mm5/16" / 8mm3/8" / 10mmBS10 Table H4

6 1/2" / 114mm 3 1/4" / 83mm 4 5/8" 11/16" / 17mm 5/8" / 16mm3/8" / 10mm1/2" / 13mmBS10 Table J4 1/2" / 114mm 3 1/4" / 83mm 4 5/8" 11/16" / 17mm5/8" / 16mm5/8" / 16mmBS10 Table K4 1/2" / 114mm 3 1/4" / 83mm 4 5/8" 11/16" / 17mm3/4" / 19mm3/4" / 19mmBS4504-690mm65mm4 M1011mm14mmBS4504-10105mm75mm4 M1214mm16mmBS4504-16105mm75mm4 M1214mm16mm6mm18mmBS4504-25105mm75mm4 M1214mm18mm8mm18mmBS4504-40105mm75mm4 M1214mm9mm18mmBS4504-64130mm90mm4 M1618mm22mmBS4504-100130mm90mm4 M1618mm22mmReturn To Index Page DiameterCast / Forged SteelmmmmmmSize = DN25 TableFlangePCDB oltsBoltHole SizeThicknessSizeGrey Cast IronCopper AlloyANSI 125/1504 1/4" / 108mm 3 1/8" / 79mm 4 1/2" 5/8" / 16mm7/16" / 11mm3/8" / 10mm7/16" / 11mmANSI 3004 7/8" / 124mm 3 1/2" / 89mm 4 5/8" 3/4" / 19mm19/32" / 15mm 11/16" / 17mmANSI 6004 7/8" / 124mm 3 1/2" / 89mm 4 5/8" 3/4" / 19mm11/16" / 17mmANSI 9005 7/8" / 149mm 4" / 102mm4 7/8"1" / 25mm1 1/8" / 29mmANSI 15005 7/8" / 149mm 4" /

7 102mm4 7/8"1" / 25mm1 1/8" / 29mmAS2129 Table C115mm83mm414mm13mm13mm10mmAS2129 Table D115mm83mm414mm13mm8mm10mmAS2129 Table E115mm83mm414mm13mm8mm10mmAS2129 Table F120mm87mm418mm13mm10mm10mmAS2129 Table H120mm87mm418mm19mm11mm14mmAS2129 Table J120mm87mm418mm19mm19mmBS10 Table D4 1/2" / 114mm 3 1/4" / 83mm 4 1/2" 9/16" / 14mm1/2" / 13mm5/16" / 8mm3/8" / 10mmBS10 Table E4 1/2" / 114mm 3 1/4" / 83mm 4 1/2" 9/16" / 14mm1/2" / 13mm5/16" / 8mm3/8" / 10mmBS10 Table F4 3/4" / 121mm 3 7/16" / 87mm 4 5/8" 9/16" / 14mm1/2" / 13mm3/8" / 10mm3/8" / 10mmBS10 Table H4 3/4" / 121mm 3 7/16" / 87mm 4 5/8" 11/16" / 17mm 3/4" / 19mm7/16" / 11mm 9/16" / 14mmBS10 Table J4 3/4" / 121mm 3 7/16" / 87mm 4 5/8" 11/16" / 17mm3/4" / 19mm3/4" / 19mmBS10 Table K5" / 127mm3 3/4" / 95mm 4 5/8" 11/16" / 17mm7/8" / 22mm7/8" / 22mmBS4504-6100mm75mm4 M1011mm14mmBS4504-10115mm85mm4 M1214mm16mmBS4504-16115mm85mm4 M1214mm16mm8mm18mmBS4504-25115mm85mm4 M1214mm18mm9mm18mmBS4504-40115mm85mm4

8 M1214mm11mm18mmBS4504-64140mm100mm4 M1618mm24mmBS4504-100140mm100mm4 M1618mm24mmReturn To Index Page DiameterCast / Forged SteelmmmmmmSize = DN32 TableFlangePCDB oltsBoltHole SizeThicknessSizeGrey Cast IronCopper AlloyANSI 125/1504 5/8" / 117mm 3 1/2" / 89mm 4 1/2" 5/8" / 16mm1/2" / 13mm 13/32" / 10mm 1/2" / 13mmANSI 3005 1/4" / 133mm 3 7/8" / 98mm 4 5/8" 3/4" / 19mm5/8" / 16mm3/4" / 19mmANSI 6005 1/4" / 133mm 3 7/8" / 98mm 4 5/8" 3/4" / 19mm13/16" / 21mmANSI 9006 1/4" / 159mm 4 3/8" / 111mm 4 7/8"1" / 25mm1 1/8" / 29mmANSI 15006 1/4" / 159mm 4 3/8" / 111mm 4 7/8"1" / 25mm1 1/8" / 29mmAS2129 Table C120mm87mm414mm16mm16mm13mmAS2129 Table D120mm87mm414mm16mm8mm13mmAS2129 Table E120mm87mm414mm16mm8mm13mmAS2129 Table F135mm98mm418mm16mm10mm13mmAS2129 Table H135mm98mm418mm22mm11mm17mmAS2129 Table J135mm98mm418mm19mm19mmBS10 Table D4 3/4" / 121mm 3 7/16" / 87mm 4 1/2" 9/16" / 14mm5/8" / 16mm5/16" / 8mm1/2" / 13mmBS10 Table E4 3/4" / 121mm 3 7/16" / 87mm 4 1/2"

9 9/16" / 14mm5/8" / 16mm5/16" / 8mm1/2" / 13mmBS10 Table F5 1/4" / 133mm 3 7/8" / 98mm 4 5/8" 11/16" / 17mm 5/8" / 16mm3/8" / 10mm1/2" / 13mmBS10 Table H5 1/4" / 133mm 3 7/8" / 98mm 4 5/8" 11/16" / 17mm 7/8" / 22mm7/16" / 11mm 11/16" / 17mmBS10 Table J5 1/4" / 133mm 3 7/8" / 98mm 4 5/8" 11/16" / 17mm3/4" / 19mm3/4" / 19mmBS10 Table K5 1/4" / 133mm 3 7/8" / 98mm 4 5/8" 11/16" / 17mm7/8" / 22mm7/8" / 22mmBS4504-6120mm90mm4 M1214mm16mmBS4504-10140mm100mm4 M1618mm18mmBS4504-16140mm100mm4 M1618mm18mm8mm18mmBS4504-25140mm100mm4 M1618mm2