管道法兰按与管子的连接方式可分为五种基本类型

1、管道法兰按与管子的连接方式可分为五种基本类型:平焊法兰、对焊法兰、螺纹法兰、承插焊法兰、松套法兰。法兰的密封面型式有有多种，一般常用有凸面（RF）、凹面（FM）、凹凸面（MFM）、榫槽面（TG）、全平面（FF）、环连接面（RJ）。 JIS 10K、16K、20K、30K、40K、63K、RF、FF 法兰尺寸表JIS 10K、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与直径螺栓直径DNDD1D2D3t*fn-dM2010075581914 1814-1512251259070251

2、4 1814-191640140105853816 2024-1916501551201005116 2024-1916651751401206118 2224-1916801851501307618 2228-191610021017515510218 2428-191612525021018512520 2428-232015028024021515222 2628-232020033029026520422 2628-232025040035532525424 30212-252230041540037530524 32316-2522 JIS 16K、RF、FF  

3、   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DNDD1D2D3t*fn-dM2010075581914 1814-15122512560702514 1814-191640140105853816 2024-1916501551201005116 2028-1916651751401206418 2228-1916802001601357620 2428-232010022518516010222 2628-232012527022519512522 26212-25221503052602301522

4、4 28212-252220035030527520426 30212-252225043038034525428 34212-272430048043039530530 36316-2724 JIS 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与直径螺栓直径DNDD1D2D3t*fn-dM2010075581916 1814-15122512590702516 2014-191640140105853818 2224-1916501551201005118 2228-191

5、6651751401206420 2428-1916802001601357622 2628-232010022518516010224 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。JIS 30K、RF、FF   

6、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DNDD1D2D3t*fn-dM201208560191814-1916251309570252014-19164016012090382224-232050165130105512228-191665200160130642628-232080210170140762828-23201002401951601023228-25221252752301951253628-252215032527523515238212-272420037032028020442212-2724250450390

7、34525448212-333030051545040530552316-3930 JIS 40K、RF、FF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DNDD1D2D3t*fn-dM201208560192014-1916251309570252214-19164016012090382424-232050165130105512628-191665200160130643028-232080210170140763228-23201002502051651023628-25221253002502001254028-27241

8、5035529524015244212-333020040534529020050212-3330250475440355247.556212-3330300540470440298.560316-3936 JIS 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与直径螺栓直径DNDD1D2D3tfn-dM25140100702227140-23204017513090353224-252250185145105483428-232065220175130573828-2522

9、80230185140734028-2522100270220165994428-27241253252652001215028-333015036530524014652212-333020042536029019058212-333025050043035523868212-393630056048541028377316-3936凸面平焊钢制管法兰 PN 1.0MPa(10bar)  MM 公称通径DN 管子外径A 连接尺寸密封尺寸法兰厚度C 法兰内径B 法兰理论重量kg 法兰管径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df数量n 螺纹Th.系

10、列1/系列2 10149060144M1240212150.4615189565144M1245212190.51202510575144M1255214260.75253211585144M1265214330.893238140/135100184M1678216391.404045150/145110184M1685318461.715057165/160125184M16100318592.096573185/180145184M16120320752.848089200/195160184M16135320913.24100108220/215180188M161553221104.

11、01125133250/245210188M161853241355.40150159285/280240238M202103241616.67175194310270238M202403241967.44200219340/335295238M202653242228.24225245365325238M202953242489.30250273395/3903502312M2032032627610.70300325445/4404002312M2036842832812.90350377505/5004602316M2042842838016.9040042656551526/2516M

12、24/M2248243043021.8045048061556526/2520M24/M2253243048424.4050053067062026/2520M24/M2258543253427.706006307807253020M2768553663439.407007208958403024M27800536715538008201015/10109503424M30905538817679009201115/111010503428M30100553891876参考100010201230/1220116036/3428M33/M301115538102090参考11001120134

13、012703628M331222540125参考120012201455/1450138039/4132M3613255441223143参考凸面平焊钢制管法兰 PN 1.6MPa(16bar)  MM 公称通径DN 管子外径A 连接尺寸密封尺寸法兰厚度C 法兰内径B 法兰理论重量kg 法兰管径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df数量n 螺纹Th.系列1/系列2 10149060144M1240214150.5515189565144M1245214190.71202510575144M1255216260.87253211585144M12

14、65218331.183238140/135100184M1678218391.604045150/145110184M1685320462.005057165/160125184M16100322592.616573185/180145184M16120324753.458089200/195160188M16135324913.71100108220/215180188M161553261104.80125133250/245210188M161853281356.47150159285/280240238M202103281617.92175194310270238M2024032819

15、68.81200219340/3352952312M2026533022210.102252453653252312M2029533024811.7025027340535526/2512M24/M2232033227615.7030032516041026/2512M24/M2237543232818.1035037752047026/2516M24/M2243543438023.304004265805253016M2748543843031.004504806405853020M2754544248440.20500530715/7056503420M3060844853455.7060

16、063084077036/4120M33/M3671855063480.8070072091084036/4124M33/M36788550724106.28008201025/102095039/4124M36898552824130.59009201125/1120105039/4128M3699854492491参考100010201255117042/4828M39/M4211105461024127参考11001120137012804228M3912225501124160参考120012201485139048/5432M45/M4813255521224186参考凸面平焊钢制管

17、法兰 PN 2.5MPa(25bar)  MM 公称通径DN 管子外径A 连接尺寸密封尺寸法兰厚度C 法兰内径B 法兰理论重量kg 法兰管径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df数量n 螺纹Th.系列1/系列2 10149060144M1240216150.6415189565144M1245216190.80202510575144M1255218260.99253211585144M1265218331.183238140/135100184M1678220391.964045150/145110184M1685322462.6050571

18、65/160125184M16100324592.716573185/180145188M16120324753.228089200/195160188M16135326914.06100108235/230190238M201603281106.0012513327022026/258M24/M221883301358.2615015930025026/258M24/M2221833016110.4017519433028026/2512M24/M2224833219611.9020021936031026/2512M24/M2227833222214.502252453953403012M

19、2730233424817.002502734253703012M2733233427618.903003254854303016M2739043632826.80350377555/5504904016M3044844238034.35400426620/61055036/3416M33/M3050544443044.90450480670/66060036/3420M33/M3055544848451.9250053073066036/3420M33/M3661045253467.30600630845/8407704120M3671855663495.20700720960/955875

20、42/4824M39/M428155607241168008201085/10709904824M45/M42930564824150.29009201185/1180109048/5428M45/M481025558924160参考100010201320/1305121055/5828M5211405621024210参考11001124142513155528M5212455661124260参考120012201530/1525142055/5832M5213505701224300参考 带颈平焊钢制管法兰PN1.0MPa(10压力) 公称通径DN 钢管外径A1 连接尺寸密封

21、面尺寸法兰厚度C法兰内径B1法兰颈法兰高度H坡口宽度b法兰理论重量kg突面凸面凹面NR AB法兰管径D螺栓孔中心圆直径K 螺栓孔直径L螺栓孔数量n 螺纹Th. df1xf2xYf3ABAB1017.2149060144M12412344353141815303032240.651521.3189565144M12462394403142219353532240.722026.92510575144M125625045131627.526454542641.032533.73211585144M126525745831634.533525242851.243242.438140100184M16

22、7626546631843.539606053052.024048.345150110184M168427547631849.546707053252.365060.357165125184M169928748832061.559848453453.086576.176185145184M161182109411032077.57810410463263.668088.989200160188M161322120412132090.59111811863464.08100114.3108220180188M1615621494.51503.52211611014014064065.401251

23、39.7133250210188M1618421754.51763.522141.513516816864467.01150168.3159285240228M2021122034.52043.524170.516119519584469.10200219.1219340295228M2026622594.52603.524221.5222246246844810.62502732733953502212M2031923124.53133.526276.527629829810461013.4300323.93254454002212M2037023634.53643.526327.53283

24、5035010461115.4350355.63775054602216M2042924215422426359.538140041210531220.5400406.44265655152616M244802473547442641143045647510571227.64504574806155652620M245302523552442846248550252512631231.15005085306706202620M2458225755576428513.553555958112671238.16006106307807253020M2768226755676428616.56366

25、5867812751248.1带颈平焊钢制管法兰 PN1.6Mpa(16bar) 公称通径DN 钢管外径A1 连接尺寸密封面尺寸法兰厚度C法兰内径B1法兰颈法兰高度H坡口宽度b法兰理论重量kg突面凸面凹面NR AB法兰管径D螺栓孔中心圆直径K 螺栓孔直径L螺栓孔数量n 螺纹Th. df1xf2xYf3ABAB1017.2149060144M12412344353141815303032240.651521.3189565144M12462394403142219353532240.722026.92510575144M125625045131627.526454542641.032533.73

26、211585144M126525745831634.533525242851.243242.438140100184M167626546631843.539606053052.024048.345150110184M168427547631849.546707053252.365060.357165125184M169928748832061.559848453453.086576.176185145184M161182109411032077.57810410463263.668088.989200160188M161322120412132090.59111811863464.081001

27、14.3108220180188M1615621494.51503.52211611014014064065.40125139.7133250210188M1618421754.51763.522141.513516816864467.01150168.3159285240228M2021122034.52043.524170.516119519584469.10200219.12193402952212M2027422594.52603.524221.5222246246844810.32502732734053552612M2433023124.53133.526276.527629829

28、810461014.3300323.93254604102612M2438923634.53643.528327.532835035010531118.8350355.63775204702616M2444824215422430359.538140041210571225.2400406.44265805253016M275032473547443241143045647510631234.84504574806405853020M275482523552443446248550252512681241.25005085307156503320M30×260925755576434

29、513.553555958112731254.96006106308407703620M33×272026755676436616.563665867812831277.0HG20592-97 带颈平焊钢制管法兰 PN2.5Mpa(25bar) 公称通径DN 钢管外径A1 连接尺寸密封面尺寸法兰厚度C法兰内径B1法兰颈法兰高度H坡口宽度b法兰理论重量kg突面凸面凹面NR AB法兰管径D螺栓孔中心圆直径K 螺栓孔直径L螺栓孔数量n 螺纹Th. df1xf2xYf3ABAB1017.2149060144M12412344353141815303032240.651521.31895651

30、44M12462394403142219353532240.722026.92510575144M125625045131627.526454542641.032533.73211585144M126525745831634.533525242851.243242.438140100184M167626546631843.539606053052.024048.345150110184M168427547631849.546707053252.365060.357165125184M169928748832061.559848453453.086576.176185145188M16ANSI

31、150、300、400、600、900、1500、2500RJ法兰尺寸表ANSI 150RJ      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凸出部分高度梯形槽中心圆直径梯形槽深度梯形槽宽度螺栓孔数量与直径螺栓直径DNDD1D2D3tfLEFn-dM2510879.563.52520.76.447.66.48582.63823.96.465.16.48.74-151250152120.5101.65125.56.482.66.48.74-191665178139.5120.66

32、428.76.4101.66.48.74-191680190152.5133.47630.36.4114.36.48.74-1916100229190.5171.410230.36.4149.26.48.78-1916125254216193.712730.36.4171.56.48.78-2320150279241.5219.115231.86.4193.66.48.78-2320200343298.5273203356.4247.76.48.78-2320250406362330.225436.66.4304.86.48.712-2522300483432406.430538.26.438

33、16.48.712-2522 ANSI 300RJ         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凸出部分高度梯形槽中心圆直径梯形槽深度梯形槽宽度螺栓孔数量与直径螺栓直径DNDD1D2D3tfLEFn-dM2011782.563.51922.36.442.96.48.74-1916251248969.82523.96.450.86.48.74-191640156114.590.53827.16.468.36.48.74-2320501651271085130.3882.6

34、811.98-1916651901491276433.48101.6811.98-2320802101681467636.68123.8811.98-2320100254200174.610246.18149.2811.98-2320125279235209.6127438181.0811.98-2320150318270241.315244.68211.1811.912-2320200381330301.620349.38269.9811.912-2522250444387.5355.625455.78323.9811.916-3027300521451412.530558.88381811

35、.916-3330 ANSI 600RJ        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凸出部分高度梯形槽中心圆直径梯形槽深度梯形槽宽度螺栓孔数量与直径螺栓直径DNDD1D2D3tfLEFn-dM2011782.563.51922.36.442.96.48.74-1916251248969.82523.96.450.86.48.74-191640156114.590.53828.76.468.36.48.74-2220501651271085133.4882.6811.98-1916

36、651901491276436.68101.6811.98-2220802101681467639.68123.8811.98-2220100273216174.610246.18149.2811.98-2222125330266.5209.612752.58181.0811.98-2527150356292241.315255.78211.1811.912-3230200419349301.620063.68269.9811.912-3633250508432355.624871.58323.9811.916-3633300559489412.829874.78381.0811.920-3633 900RJ        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凸出部分高度梯形槽中心圆直径梯形槽深度梯形槽宽度螺栓孔数量与直径螺栓直径DNDD1D2D3tfLEFn-dM80241190.5155.67346.18123.8811.98-2520100292235181