各种标准法兰尺寸对照

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1、各种标准法兰尺寸对照公称通径PN16（GB4216.4-84)PN10(GB4216.4-84)PN6(GB4216.3-84)外圆孔距螺栓孔数外圆孔距螺栓孔数外圆孔距螺栓孔数15    9565M124    20    10575M124    25    11585M124    32    140100M164    40150110M164150110M164130100M12450165125M164165125M164140110M12465185145M164185145M164160130M12480200160M168200160M168190150M164100

2、220180M168220180M168210170M164125250210M168250210M168240200M168150285240M208285240M208265225M168200340295M2012340295M208320280M168250405355M2412395350M2012375335M1612300460410M2412445400M2012440395M2012350520460M2416505460M2016490445M2012400580525M2716565515M2416540495M2016DINPN10JIS10KANSI15

3、0LBS法兰尺寸对照表尺寸1/2"3/4"1"11/4"11/2"2"21/2"3"4"5"6"8"10"12"承插口径DIN2025324050637590110140160225250315ANSI21.326.733.442.248.360.37388.9114.3141.3168.3219.1273.1323.9JIS2226323848607689114140165216267318螺孔距DIN657585100110125145160180210240295350400ANSI6070798998121140152191215.9241298362432JIS707590

4、0100105120140150175210240290355400螺孔数/直径DIN4-144-188-188-2312-23ANSI4-164-198-198-2212-2412-25JIS4-154-198-198-2312-2312-2516-25法兰外圆直径DIN95105115140150165185200220250285340396445ANSI8998108117127152178191229254284343406481JIS95100125135140155175185210250280330400445法兰图纸GB1.6Mpa　法兰尺寸表(GB9119.4～8

5、8)(mm)公称通径(DN)管子外径(A)连接尺寸法兰厚度C法兰内径B法兰外径D中心圆直径K螺栓孔径L数量n螺栓Th1017.29060144M121418.01521.39565144M121422.02026.910575144M121627.52533.711585144M121634.53242.4140100184M161843.54048.3150110184M161849.55060.3165125184M162061.56576.1185145184M162077.58088.9200160188M162090.5100114.3220180188M1622116.0

6、125139.7250210188M1622141.5150168.3285240228M2024170.5200219.13402952212M2026221.5250273.04053552612M2429276.5300323.94604102612M2432327.5 GB2.5Mpa　法兰尺寸表(GB9119.9～88)(mm)公称通径(DN)管子外径(A)连接尺寸密封面法兰厚度C法兰内径B法兰外径D中心圆直径K螺栓孔径L数量n螺栓Thdf1017.29060144M124121418.01521.39565144M124621422.02026.910575144M125

7、621627.52533.711585144M126531634.53242.4140100184M167631843.54048.3150110184M168431849.55060.3165125184M169932061.56576.1185145188M1611832277.58088.9200160188M1613232490.5100114.3235190228M20156326116.0125139.7270220268M2418432814