突面、凹凸面、榫槽面法兰的密封面尺寸f1、f2包括在法兰厚度C内。

环连接面法兰的突台高度E未包括在法兰厚度C内。

采用B系列钢管外径的DN350-900法兰，应在法兰的螺栓支承面，以螺栓孔为中心，锪出下表所列直径的平面，适用于紧固件的装配。

锪平面与法兰的螺栓支承面齐平，允许与法兰颈部大端直径N或转角R相交。

带颈对焊钢制管法兰(HG20595-97)法兰密封面适用范围螺栓直径螺栓孔直径L螺栓直径锪平面直径483666锪平面直径M202240M33螺栓孔直径LM3942763971M3689M303361M4548M242653M2730A B 1017.2149060144M12142828263350.661521.3189565144M12143232263380.752026.92510575144M12164040 2.36440 1.052533.73211585144M12164646 2.66440 1.263242.438140100184M16185656 2.66542 2.054048.345150110184M16186464 2.67545 2.375060.357165125184M16207474 2.98548 3.116576.176185145184M162092922.910648 3.748088.989200160188M1620110110 3.210650 4.22100114.3108220180188M1622130130 3.612652 5.39125139.7133250210188M1622158158412655 6.88150168.3159285240228M2024184184 4.5128559.13200219.1219340295228M2024234234 6.31686211.82502732733953502212M2026288288 6.316106815.6300323.93254454002212M20263423427.116106818.6350355.63775054602216M2026390402816106822.8400406.44265655152616M24264404588.816107228.24504574806155652620M24284885101016127231.75005085306706202620M24285405621116127536.86006106307807253020M272864066012.518128052.67007117208958403024M273074675512.518128064.580081382010159503324M30*23284885512.518129087900914920111510503328M30*23494895412.5201295106.1100010161020123011603628M33*2341050105412.5201295123.9120012191220145513803932M36*3381256125612.52512115187.7140014221420167515904236M39*3421462146012.52512120256.5160016261620191518204840M45*3461672166612.52512130368.9180018291820211520204844M45*3501875186614.23015140451.1200020322020232522304848M45*35420822070163015150564.2管子外径A1连接尺寸公称通径DN A B D K n Th 法兰厚度C 理论重量kg 法兰颈NSH1≈R 法兰高度H LA B 1017.2149060144M12142828263350.661521.3189565144M12143232263380.752026.92510575144M12164040 2.36440 1.052533.73211585144M12164646 2.66440 1.263242.438140100184M16185656 2.66542 2.054048.345150110184M16186464 2.67545 2.375060.357165125184M16207474 2.98548 3.116576.176185145184M162092922.910648 3.748088.989200160188M1620110110 3.210650 4.22100114.3108220180188M1622130130 3.612652 5.39125139.7133250210188M1622158158412655 6.88150168.3159285240228M2024184184 4.5128559.13200219.12193402952212M2024234234 6.31686211.52502732734053552612M2426288288 6.316107016.7300323.93254604102612M24283423427.116107822.4350355.63775204702616M2430390410816108230.5400406.44265805253016M27324444648.816108538.54504574806405853020M27344905121016128750.85005085307156503320M30*2345465781116129070.76006106308407703620M33*23665067012.518129585.37007117209108403624M33*23875075912.5181210094.880081382010259503924M36*33884885512.52012105109.4900914920112510503928M36*34094895412.52012110127.3100010161020125511704228M39*3421056106012.52212120169.7120012191220148513904832M45*3481260126012.53012130254.4140014221420168515904836M45*3521467146514.23012145333.5160016261620193018205540M52*45816741668163512160483.7180018291820213020205544M52*4621879187017.53515170590.5200020322020234522306048M56*46620842072204015190748.9K L n Th 法兰高度H 理论重量kg R 公称通径DN 管子外径A1连接尺寸A B D NSH1≈法兰厚度C 法兰颈A B 1017.2149060144M12142828 2.363350.661521.3189565144M12143232 3.263380.752026.92510575144M12164040 3.26440 1.052533.73211585144M12164646 3.26440 1.263242.438140100184M16185656 3.66542 2.054048.345150110184M16186464 3.67545 2.375060.357165125184M1620747448548 3.116576.176185145188M16229292510652 3.948088.989200160188M1624110110 5.612658 5.03100114.3108235190228M2024134134 6.3126657.01125139.7133270220268M2426162162 6.3126689.61150168.3159300250268M2428190190 6.31287512.7200219.12193603102612M2430244244 6.31688017.42502732734253703012M2732296296 6.318108824.4300323.93254854303016M27343503507.118109231.9350355.63775554903316M30*2383984208201010048.5400406.44266205503616M33*2404524728.8201011061.14504574806706003620M33*24250052210201211071.55005085307306603620M33*24455858011201212592.56006106308457703920M36*34666068012.52012125132.87007117209608754224M39*34676076914.22012125142.780081382010859904824M45*350864871162212135193.2900914920118510904828M45*35496897417.52412145236.8100010161020132012105528M52*45810701074202412155312.9SH1≈R L n Th NA B D K 公称通径DN 管子外径A1连接尺寸法兰厚度C 法兰颈法兰高度H 理论重量kgA B 1017.2149060144M12142828 2.363350.661521.3189565144M12143232 3.263380.752026.92510575144M12164040 3.26440 1.052533.73211585144M12164646 3.26440 1.263242.438140100184M16185656 3.66542 2.054048.345150110184M16186464 3.67545 2.375060.357165125184M1620747448548 3.116576.176185145188M16229292510652 3.948088.989200160188M1624110110 5.612658 5.03100114.3108235190228M2024134134 6.3126657.01125139.7133270220268M2426162162 6.3126689.61150168.3159300250268M24281901907.11287512.7200219.12193753203012M273424424481688821.42502732734503853312M30*23830630610181010534.6300323.93255154503316M30*24236236210181011548.2350355.63775805103616M33*24640843011201012566.8400406.44266605853916M36*35046248212.52010135964504574806856103920M36*35750052214.22012135100.15005085307556704220M39*357562584162012140125.96006106308907954820M45*37266668617.52012150204.2法兰颈法兰高度H 理论重量kg ThNH1≈R 公称通径DN 管子外径A1连接尺寸法兰厚度C A B D K L n SPN4.0MPa带颈对焊钢制管法兰(HG20595-97)AB1017.21410070144M1220323236345 1.181521.31810575144M12203434 3.26345 1.32026.92513090184M16204242 3.6645222533.732140100184M16245252 3.68458 2.793242.438155110224M20246060 3.68560 3.384048.345170125224M20267070410562 4.45060.357180135224M20268282510562 4.866576.176205160228M20269898612668 5.928088.989215170228M2028112112612672 6.93100114.3108250200268M24301381387126789.98125139.7133295240308M27341681687.51268815.6150168.3159345280338M30*2362022028.51289523200219.12194153453612M33*24225625610.5168110352502732734704003612M33*24631631613.5181012548.9300323.93255304603616M33*25237237215.5181014068.3350355.63776005253916M36*35672044217.5201015095.4400406.44266705854216M39*360475495202010160141.3AB1017.21410070144M1220323236345 1.181521.31810575144M12203434 3.26345 1.32026.92513090184M16204242 3.6645222533.732140100184M16245252 3.68458 2.793242.438155110224M20246060 3.68560 3.384048.345170125224M20267070410562 4.45060.357195145264M24289090610568 6.246576.176220170268M24301081087126767.958088.989230180268M24321201207126789.1100114.3108265210308M273615015081269013.9125139.7133315250338M30*24018018010.512610522.3150168.31593552903312M30*24421021011.512811530.1200219.12194303603612M33*25227827814.5168130512502732735054303912M36*36034034018.5181015782.2300323.93255855004216M39*36840040020.51810170119.4350355.63776555604816M45*37446048222.52010189166.2400406.44267156204816M45*382510530252010205214.5N SH1≈R 法兰颈法兰高度H理论重量kgA B DKLnTh公称通径DN管子外径A1连接尺寸法兰厚度CPN10.0MPa带颈对焊钢制管法兰(HG20595-97)H1≈R B 公称通径DN管子外径A1连接尺寸法兰厚度CnThDKL法兰颈法兰高度H理论重量kgA N SAB1017.21410070144M1224323236345 1.391521.31810575144M12263434 3.26345 1.652026.92513090184M16304242 3.66452 2.92533.732140100184M16325252 3.68458 3.613242.438155110224M20346060 3.68560 4.64048.345170125224M20367070410564 5.925060.357195145264M243890906105758.286576.176220170268M244210810871268210.88088.989230180268M244612012071268612.9100114.3108265210308M2752150150812610019.6125139.7133315250338M30*25618018010.514611530.6150168.31593552903312M30*26221021012.514812842.2200219.12194303603612M33*2662782781616814065.62502732735154304212M39*376340340201810155106.4300323.93255855004216M39*38840040022.21810175153.2AB1017.21412585184M1624444436360 2.261521.31813090184M16264848 3.26360 2.652026.92513595184M16285454 3.66465 3.122533.732150105224M20286060 3.68465 3.743242.438165120224M2032727248575 5.324048.345185135264M243484845105807.085060.357200150268M24389595 6.3105858.616576.176230180268M244212412481269513.28088.989255200308M27461361361112610217100114.3108300235338M30*25416416414.214612028.1125139.71333402753312M30*2602002001616614039.7150168.31593903203612M33*26824024017.518816060.5200219.12194854004212M39*38230525258190111.82502732735854904816M45*3100385323010215193.3N SH1≈R 法兰颈法兰高度H理论重量kgA B DKLnTh公称通径DN管子外径A1连接尺寸法兰厚度CPN25.0MPa带颈对焊钢制管法兰(HG20595-97)nThN SB D公称通径DN管子外径A1连接尺寸法兰厚度C理论重量kgA KL法兰颈法兰高度HH1≈R。