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1、常用法兰标准尺寸表作者：日期：常用法兰标准尺寸表内容来源网络，由“深圳机械展（11万m 1100多家展商，超10万观众）”收集整理！更多cn c加工中心、车铳磨钻床、线切割、数控刀具工具、工业机器人、非标自动化、数字化无人工厂、精密测量、3D打印、激光切割、钺金冲压折弯、精密零件加工等展示，就在深圳机械展.、JIS 10K、1 6 K、20K、30 K、4 0K、63K、RF、FF 法兰尺寸表表 14 J I S 10K、R F、FF mm公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接部分凸出高度螺栓孔数量匕直径螺栓直径DNDD1D2D3t*fn-dM20100755819141
2、814-151225125907025141814-1916401401058538162024-19165015512010051162024-19166517514012061182224-19168018515013076182228-1916100210175155102182428-1916125250210185125202428-2320150280240215152222628-2320200330290265204222628-23202504003553252542430212-25223004154003753052432316-2522表 1 5 J I S 1 6 K
3、、RF、FF mm公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接部分凸出高度螺栓孔数量匕直径螺栓直径DNDD1D2D3t*fn-dM20100755819141814-151225125607025141814-1916401401058538162024-19165015512010051162028-19166517514012064182228-19168020016013576202428-2320100225185160102222628-23201252702251951252226212-25221503052602301522428212-252220035030
4、52752042630212-25222504303803452542834212-27243004804303953053036316-2724表 16 J I S 20K、RF、FF mm公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接部分凸出高度螺栓孔数量匕直径螺栓直径DNDD1D2D3t*fn-dM2010075581916 1814-15122512590702516 2014-191640140105853818 2224-1916501551201005118 2228-1916651751401206420 2428-1916802001601357622 2628
5、-232010022518516010224 2828-232012527022519512526 30212-252215030526023015228 32212-252220035030527520430 34212-252225043038034525434 38212-272430048043039530536 40316-2724* t值中较小值为钢及可锻铸铁法兰；较大值为铸铁法兰。表 1 7 JI S 3 0 K、RF、FF mm公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接部分凸出高度螺栓孔数量匕直径螺栓直径DNDD1D2D3t*fn-dM201208560191
6、814-1916251309570252014-19164016012090382224-232050165130105512228-191665200160130642628-232080210170140762828-23201002401951601023228-25221252752301951253628-252215032527523515238212-272420037032028020442212-272425045039034525448212-333030051545040530552316-3930表 1 8 J I S 4 0 K、RF、FF公称通径外径螺栓孔中心圆直径
7、连接凸出部分直径内径法兰厚度连接部分凸出高度螺栓孔数量匕直径螺栓直径DNDD1D2D3t*fn-dM201208560192014-1916251309570252214-19164016012090382424-232050165130105512628-191665200160130643028-232080210170140763228-23201002502051651023628-25221253002502001254028-272415035529524015244212-333020040534529020050212-3330250475440355247.556212-33
8、30300540470440298.560316-3936表 1 9 J I S 63K、RF、FF mm公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接部分凸出高度螺栓孔数量匕直径螺栓直径DNDDiD2D3tfn-dM25140100702227140-23204017513090353224-252250185145105483428-232065220175130573828-252280230185140734028-2522100270220165994428-27241253252652001215028-333015036530524014652212-3330200
9、42536029019058212-333025050043035523868212-393630056048541028377316-3936四、JPI 150、30 0、60 ORF、RJ 法兰尺寸表表 2 0 JPI 150R F mm公称通外螺栓孔中心圆连接凸出部分内法兰厚连接部分凸出螺栓孔数量与螺栓直径径直径直径径度高度直径径DNDD1D2D3tfn-dM209870.0431912.71.64-15122510879.5512514.31.64-15124012798.5733817.51.64-151250152120.5925119.11.64-191665178139.510
10、56422.31.64-191680190152.51277623.91.64-1916100229190.515710223.91.68-1916125254216.018612523.91.68-2220150279241.521615225.41.68-2220200343298.527020428.61.68-2220250406362.032425430.21.612-2522300483432.038130531.81.612-2522表 21 J PI 300RF mm公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接部分凸出高度螺栓孔数量与直径螺栓直径DNDD1D2D
11、3tfn-dM2011782.5431915.91.64-19162512489.0512517.51.64-191640156114.5733820.71.64-222050165127.0925122.31.68-191665190149.01056425.41.68-222080210168.01277628.61.68-2220100254200.015710231.81.68-2220125279235.018612535.01.68-2220150318270.021615236.61.612-2220200381330.027020441.31.612-2522250444387
12、.532425447.71.616-2927300521451.038130550.81.616-3230表 22 JPI 600 RF mm公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接部分凸出高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM2011782.5431922.31.64-19162512489.0512523.91.64-191640156114.5733828.71.64-222050165127925131.81.68-19166519014910564351.68-2220802101681277638.21.68-2220100273216157
13、10244.51.68-2522125330266.518612550.91.68-2927150356292.021615254.11.612-2927200419349270200621.612-3230250508432324247.569.91.616-3533300559489381298.573.11.616-3533表 2 3 J P I 150RJ m m公称通径外径螺栓孔中心圆直径连接凸出部分直径内径梯形槽中心圆直径梯形槽深度梯形槽宽度法兰厚度连接部分凸出高度螺栓孔数量匕直径螺栓直径DNDD1D2D3LFEtfn-dM2510879.563.52547.6258.7316.4
14、20.76.44-15124012798.582.63865.0888.8316.423.96.44-151250152120.5101.65182.5508.7316.425.56.44-151665178139.5120.664101.6008.7316.428.76.44-191680190152.5133.176114.3008.7316.430.36.44-1916100229190.5171.1102149.2258.7316.430.36.48-1916125254216.0193.7125171.1508.7316.430.36.48-2220150279241.5219.11
15、52193.6758.7316.431.86.48-2220200343298.5273.0204247.6508.7316.4356.48-2220250406362.0330.2254304.2008.7316.436.66.412-2522300483432.0406.1305381.0008.7316.438.26.412-2522表 2 4 J PI 300RJ m m公称通径外径螺栓孔中心圆直径连接凸出部分直径内径梯形槽中心圆直径梯形槽深度梯形槽宽度法兰厚度连接部分凸出高度螺栓孔数量匕直径螺栓直径DNDD1D2D3LFEtfn-dM2011782.563.51942.8628.73
16、16.422.36.44-19162512489.069.82550.8008.7316.423.96.44-191640156114.590.53868.262 11.9066.427.16.44-222050165127.0108.05182.550 11.9068.028.78.08-191665190149.0127.064101.60011.9068.031.88.08-222080210168.0146.076123.8211.9068.0358.08-22205100254200.0174.6102149.22511.9068.038.28.08-2220125279235.02
17、09.6125180.97511.9068.041.48.08-2220150318270.0241.3152211.13811.9068.0438.012-2220200381330.0301.6204269.87511.9068.047.78.012-2522250444387.0355.6254323.85011.9068.054.18.016-2927300521451.0412.8305381.00011.9068.057.28.016-3230表 25 JPI 6 00RJ mm公称通径外径螺栓孔中心圆直径连接凸出部分直径内径梯形槽中心圆直径梯形槽深度梯形槽宽度法兰厚度连接部分凸出
18、高度螺栓孔数量匕直径螺栓直径DNDD1D2D3LFEtfn-dM2011782.563.51942.8628.7316.422.36.44-19162512489.069.82550.8008.7316.423.96.44-191640156114.590.53868.2628.7316.428.76.44-222050165127.0108.05182.55011.9068.031.88.08-191665190149.0127.064101.60011.9068.035.08.08-222080210168.0146.076123.82511.9068.038.28.08-22201002
19、70216.0174.6102149.22511.9068.044.58.08-2522125330266.5209.6125180.97511.9068.050.98.08-2927150356292241.3152211.13811.9068.054.18.012-2927200419349301.6200269.87511.9068.062.08.012-3230250508432355.6247.5323.85011.9068.069.98.016-353330055489412.8298.381.00011.9068.073.18.020-353395五、德国DIN标准法兰尺寸表 2
20、6 PN16(1. 6 MPa) mm公称通外螺栓孔中心圆直连接凸出部分直连接凸出部分法兰厚螺栓孔数量匕直螺栓直径径径径高度度径径DNDD1D2fHn-dM159565452144-14122010575582164-14122511585682164-141232140100782184-181640150110882184-1816501651251023204-1816651851451223204-1816802001601383228-18161002201801583248-18161252502101883268-18161502852402123268-222020034029
21、52683308-22202504053553203328-2624表 2 7 PN40(4.0MPa)mm公称通外螺栓孔中心圆直连接凸出部分直连接凸出部分法兰厚螺栓孔数量匕直螺栓直径径径径高度度径径DNDD1D2fHn-dM159565452164-14122010575582184-14122511585682184-141232140100782184-181640150110882184-1816501651251023204-1816651851451223228-1816802001601383248-18161002351901623248-2220125270220188326
22、8-26241503002502183288-262420037532028533412-302725045038534533812-3330六、中国JB标准法兰尺寸1 .凸面整 体铸钢管法兰(JB/T79.1- 9 4)图1凸面整体铸钢管法兰表 28 PN1.6MP a mm公称通径DN连接尺寸密封面尺寸法兰厚度C法兰颈法兰外径D系列1/系列2螺栓孔中心圆直径K螺栓孔直径L系列1/系列2双头螺柱dfNmaxSmaxR数量n螺纹Th.系列1/系列2159565144M1245214391242010575144M1255214441242511585144M12652144912432140/
23、135100184M16782165612440150/145110184M16853166412450165/160125184M161003167412565185/180145184M161203189515580200/195160188M16135320110155100220/215180188M16155320130155125250/245210188M16185322161186150285/280240238M20210324186186(175)310270238M20240326215206200340/3352952312M20265326240206(225)365
24、3252312M2029532626922625040535526/2512M24/M3203302982482230046041026/2512M24/M22375430348248表 2 9 PN2.5MPa mm公称通径DN连接尺寸密封面尺寸法兰厚度C法兰颈法兰外径D系列1/系列2螺栓孔中心圆直径K螺栓孔直径L系列1/系列2螺栓、螺柱dfNmaxSmaxR数量n螺纹Th.系列1/系列2159565144M1245216391242010575144M1255216441252511585144M12652164912532140/135100184M16782186215540150/1
25、45110184M16853187015550165/160125184M161003208015565185/180145188M1612032210118680200/195160188M16135322116186100230190238M2016032413618612527022026/258M24/M2218832816922815030025026/258M24/M22218330198248(175)33028026/2512M24/M2224833222324820036031026/2512M24/M22278334252268(225)3953403012M2730233
26、62812882504253703012M2733233630628103004854303016M273904403603010表 30 PN4.0MP a m m公称通径DN连接尺寸密封面尺寸法兰厚度C法兰颈法兰外径D系列1/系列2螺栓孔中心圆直径K螺栓孔直径L系列1/系列2螺栓、螺柱dfNmaxSmaxR数量n螺纹Th.系列1/系列2159565144M1245216391242010575144M1255216441252511585144M12652164912532140/135100184M16782186215540150/145110184M16853187015550165
27、/160125184M161003208015565185/180145188M1612032210118680200/195160188M16135322116186100235/230190238M2016032414020612527022026/258M24/M2218832816922815030025026/258M24/M22218330198248(175)3502953012M2725833423128102003753203012M272823382562810(225)4153553412M303153402853010250450/4453853412M30345342
28、3143210300515/5104503416M304084463683412注:表283 0中系列1法兰连接尺寸与国标及德国法兰标准尺寸互换深列2尺寸与原机标准法兰尺寸互换；新产品设计应优先采用系列1尺寸2.凹凸面整体铸钢管法兰(JB/T7 9 .2 94)图2凹凸面整体铸钢管法兰mm表 3 1 PN 4 .0MPa mm公称通径DN连接尺寸密封面尺寸法兰厚度C法兰颈法兰外径D系列1/系列2螺栓孔中心圆直径K螺栓孔直径L系列1/系列2双头螺柱dX系歹U 1/系列2Y系歹U 1/系列2ff1、f2Nma xSmaxR数量n螺纹Th.系列1/系列2159565144M1245394024163
29、91242010575144M125550512416441252511585144M1265575824164912532140/135100184M1678656624186215540150/145110184M1685757634187015550165/160125184M16100878834208015565185/180145188M16120109110342210118680200/195160188M161351201213422116186100235/23190238M2016014915034.524140206012527022026/258M2418817517634.52816922815030025026/258M24/M2221820320434.530198248(175)3502953012M2725823323434.53423128