1、常用法兰规格尺寸表(国标、美标、日标)GB9119，288GB9119，288in公称通径10kg=1.0MPa公称通径16kg=1.6MPa法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度3/8DN10506014414DN109060144141/2DN15596514414DN159565144143/4DN201057514416DN2010575144161DN251158514416DN25115851441611/4DN3214010018418DN321401001841811/2DN4015011018418DN40150110184182DN
2、5016512518420DN501651251842021/2DN6518514518420DN65185145184203DN8020016018820DN802001601882031/2DN10022018018822DN100220180188224DN12525021018822DN125250210188225DN15028524022824DN150285240228246DN20034029522824DN200340295228268DN250395350221226DN25040535526122910DN300445400221228DN3004604102612321
3、2DN350505460221630DN35052047026163514DN400565515261632DN40058052530163816DN450615565262035DN45064058530204218DN500670620262038DN50071565033204620DN600780725262042DN60084077036205224JIS标准JIS标准JIS标准in公称通径10kg=1.0MPa公称通径16kg=1.6MPa公称通径20kg=2.0MPa法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度法兰外径螺栓孔距螺栓直径螺栓孔数法
4、兰厚度3/8DN10DN10DN101/2DN15DN15DN153/4DN20DN20DN201DN25DN25DN2511/4DN32DN32DN3211/2DN4014010519416DN4014010519416DN40140105194182DN5015512019416DN5015512019816DN501551201981821/2DN6517514019418DN6517514019818DN65175140198203DN8018515019818DN80200, 16022820DN802001602382231/2DN9019516019818DN9021017022
5、820DN90210170238244DN10021017519818DN10022518522822DN100225185238245DN12525021023820DN12527022525822DN125270225258266DN15028024023822DN150305260251224DN1503052602512288DN200330290231222DN200350305251226DN20035030525123010DN250400355251224DN250430380291228DN25043038029123412DN300445400251624DN3004804
6、30291630DN30048043029163614DN350490445251626DN350540480321634DN35054048033164016DN400560510271628DN400605540351638DN40060554033164618DN450DN450DN45020DN500DN500DN50024DN600DN600DN600ANSI标准125型ANSI标准150型ANSI标准300型in公称通径10kg=1.0MPa公称通径16kg=1.6MPa公称通径20kg=2.0MPa法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度法
7、兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度3/8DN10DN10DN101/2DN15DN15DN153/4DN20DN20DN201DN25DN25DN2511/4DN32DN32DN3211/2DN4012798.516414.3DN4012798.516417.5DN40156114.5194182DN50152120.519415.9DN50152121.519419.1DN501651272281821/2DN65178139.519417.5DN65178139.519422.3DN65190149228203DN80190152.519419.1DN80190152.519423.9
8、DN80210168228224DN100229190.519823.9DN100229190.519823.9DN100254200228245DN125254216.522823.9DN125254216.522823.9DN125279235228266DN150279241.522825.4DN150279241.522825.4DN1503182702 212288DN200343298.522828.6DN200343298.522828.6DN20038133025123010DN250406362.5251230.2DN250406362.5251230.2DN25044438
9、7.529163412DN300483432251231.8DN300483432251231.8DN30052145132163614DN350533476.5291235DN350533476.5291235DN350584514.532204016DN400597539.5291636.6DN400597539.5291636.6DN400648571.53 5204618DN450DN450DN45020DN500DN500DN50024DN600DN600DN600国标(GB9112913188)管法兰连接尺寸表公称通径DNmm公 称 压 力 PN MPa(bar)0.25(2.5)
10、/0.6(6)1.0(10)1.6(16)2.5(25)2.0(20)DKnLDKnLDKnLDKnLDKnL40130100414150110418150110418150110418130985416501401101651251651251651251501205206516013018514518514518514581801395801901501820016082001608200160190152510021017022018022018023519022230190581252402008250210250210270220262552162215026522528524022
11、285240223002502802415200320280340295340295123603101234529852503753351239535012405355264253703040536212263004403952244540046041048543016485432350490445505460165204701655549033535470304005404951656551526580525306205503660054016450595550615565206405852067060020635578335006456002067062071565033730660700
12、63520600755705267807253084077036845770398157495367008608102489584024910840249608752442/800975920301015950331025950391085990489001075102011151050281125105028118510902810001175112028123011603612551170421320121056120013751405132013403230331455138032391485139032481530142032140015751630152015603630361675
13、15903642168515903617551640366216001790183017301760401915182040481930182040561975186040代号D - 法兰外径 mm； n - 螺栓孔个数D1 - 法兰螺栓孔中心圆直径 mm d - 螺栓孔直径 mm;国标(GB9112913188)管法兰连接尺寸表公称通径DNmm公 称 压 力 PN MPa(bar)0.25(2.5)/0.6(6)1.0(10)1.6(16)2.5(25)2.0(20)DKnLDKnLDKnLDKnLDKnL4013010041415011041815011041815011041813098
14、541650140110165125165125165125150120520651601301851451851451851458180139580190150182001608200160820016019015251002101702201802201802351902223019058125240200825021025021027022026255216221502652252852402228524022300250280241520032028034029534029512360310123452985250375335123953501240535526425370304053
15、621226300440395224454004604104854301648543235049044550546016520470165554903353547030400540495165655152658052530620550366005401645059555061556520640585206706002063557833500645600206706207156503373066070063520600755705267807253084077036845770398157495367008608102489584024910840249608752442/80097592030
16、101595033102595039108599048900107510201115105028112510502811851090281000117511202812301160361255117042132012105612001375140513201340323033145513803239148513903248153014203214001575163015201560363036167515903642168515903617551640366216001790183017301760401915182040481930182040561975186040代号D - 法兰外径 m
17、m； n - 螺栓孔个数D1 - 法兰螺栓孔中心圆直径 mm d - 螺栓孔直径 mm;国标标准法兰尺寸对照表PN1.6MPa的尺寸口径DNABCEHD螺栓50160125100316184-M1665180145120318184-M1680195160135320188-M16100215180155320188-M16125245210185322188-M16150280240210324238-M202003352952653262312-M202504053553203302512-M223004604103754302512-M223505204704354342516-M224
18、005805254854363016-M274506405855454403020-M275007056506084443420-M306008407707185484124-M367009108407885504124-M3680010209508985524124-M36900112010509985544128-M3610001255117011105564828-M42PN2.5MPa的尺寸口径DNABCEHD螺栓50160125100320184-M1665180145120322188-M1680195160135322188-M16100230190160324238-M2012
19、5270220188328258-M22150300250218330258-M222003603102783342512-M222504253703323363012-M273004854303904403012-M273505504904484443416-M304006105505054483416-M304506606005554503420-M305007306606104524120-M366008407707185564120-M367009558758155604824-M4280010709909305644824-M429001180109010255665428-M481
20、0001305121011405685828-M52PN4.0MPa的尺寸口径DNABCGEFHD螺栓50160125100883420184-M16651801451201103422184-M16801951601351213422188-M1610023019016015034.524238-M2012527022018817534.528258-M2215030025021820434.530258-M2220037532028226034.5383012-M2725044538534531334.5423412-M3030051045040836444.5463416-M303505
21、7051046542245523416-M3040065558553547445584116-M3645068061056052445604120-M3650075567061257645624820-M4260089079573067856625420-M4870099590082576856685424-M488001135103096087656765824-M52PN6.4MPa的尺寸口径DNABCGEFHD螺栓50175135105883426234-M20652001601301103428234-M20802101701401213430238-M2010025020016815
22、034.532258-M2212529524020217534.536308-M2715034028024020434.538348-M3020040534530026034.5443412-M3025047040035231334.5484112-M3630053046041236444.5544116-M3635059552547542245604116-M3640067058552547445664816-M4250080070564057645705420-M4860093082075067856765820-M52PN10.0MPa的尺寸口径DNABCGEFHD螺栓501951451
23、128581228254-M226522017013811081232258-M228023018014811581234258-M2210026521017214581238308-M2712531025021017581242348-M30150350290250205812463412-M30200430360312265812544112-M36250500430382320812604112-M36300585500442375812704816-M423506555604984201112765416-M484007156205584801117805416-M48PN16.0MP
24、a尺寸口径DNABCGEFHD螺栓502151651329581236258-M226524519015211081244308-M278026020516813081246308-M2710030024020016081248348-M3012535528523819081260418-M361503903182702051014664112-M362004804003452751117784812-M42250580485425330111788国标钢制管法兰制造标准法兰类型密封面形式公称压力/Mpa公称通径管子外径所属体系标准编号整体法兰平面、突面、凹凸面、榫槽面PN0.6、PN1.0、
25、PN1.6、PN2.5、PN4.0、PN6.3、PN10.0、PN16.0DN10DN2000英制系列和米制系列欧洲体系GB/T9113.1GB/T9113.4-2000平面、突面、凹凸面、榫槽面、环连接面PN2.0、PN5.0、PN11.0、PN15.0、PN26.0、PN42.0DN15 DN600英制系列美洲体系螺纹法兰突面PN0.6、PN1.0、PN1.6、PN2.5、PN4.0DN10 DN150英制系列欧洲体系GB/T9114-2000突面PN2.0、PN5.0、PN11.0、PN15.0DN15 DN600英制系列美洲体系对焊法兰平面、突面、凹凸面、榫槽面PN0.25、PN0.6
26、、PN1.0、PN1.6、PN2.5、PN4.0、PN6.3、PN10.0、PN16.0DN10DN3000英制系列和米制系列欧洲体系GB/T9115.1GB/T9115.4-2000平面、突面、凹凸面、榫槽面、环连接面PN2.0、PN5.0、PN11.0、PN15.0、PN26.0、PN42.0DN15 DN600英制系列美洲体系带颈平焊法兰平面、突面、凹凸面、榫槽面PN0.6、PN1.0、PN1.6、PN2.5、PN4.0DN10DN600英制系列和米制系列欧洲体系GB/T9116.1GB/T9116.4-2000平面、突面、凹凸面、榫槽面、环连接面PN2.0、PN5.0、PN11.0、P
27、N15.0、PN26.0DN15 DN600英制系列美洲体系带颈承插焊法兰突面、凹凸面、榫槽面、环连接面PN2.0、PN5.0、PN11.0、PN15.0、PN26.0DN15 DN80英制系列美洲体系GB/T9117.1GB/T9117.4-2000对焊环带颈松套法兰突面、环连接面PN2.0、PN5.0、PN11.0、PN15.0、PN26.0、PN42.0DN15 DN600英制系列美洲体系GB/T9118.1GB/T9118.2-2000板式平焊法兰平面、突面PN0.25、PN0.6、PN1.0、PN1.6、PN2.5、PN4.0、DN10DN2000英制系列和米制系列欧洲体系GB/T9
28、119-2000对焊环板式松套法兰突面、凹凸面、榫槽面PN1.0、PN1.6、PN2.5、PN4.0、DN10DN600英制系列和米制系列欧洲体系GB/T9120.1GB/T9120.3-2000平焊环板式松套法兰突面、凹凸面、榫槽面PN0.6、PN1.0、PN1.6、PN2.5、PN4.0DN10DN600英制系列和米制系列欧洲体系GB/T9121.1GB/T9121.3-2000翻边环板式松套法兰突面PN0.6、PN1.0DN10DN300英制系列和米制系列欧洲体系GB/T9122-2000法兰盖平面、突面、凹凸面、榫槽面PN0.25、PN0.6、PN1.0、PN1.6、PN2.5、PN4
29、.0、PN6.3、PN10.0、PN16.0DN10DN2000欧洲体系GB/T9123.1GB/T9123.4-2000平面、突面、凹凸面、榫槽面、环连接面PN2.0、PN5.0、PN11.0、PN15.0、PN26.0、PN42.0DN15 DN600美洲体系国标钢制管法兰检验标准:GB/T9124-2000国标真空法兰标准（2）图1 固定法兰表1 固定法兰尺寸（mm）公称通径F*BHE*Mjs16CH13X螺栓Dn1016202532405063801001251602002503204005006308001000125016001800200012.217.222.226.234.241.252.270831021271532132613184
